Budapest 1981 - Magyar Természettudományi Múzeum

Transcription

Budapest 1981 - Magyar Természettudományi Múzeum
ANNALES HISTORICO-NATURALES MUSEI NATIONALIS HUNGARICÏ
Tomus73.
Budapest, 1981
p. 253-261.
Three new Orgilus Hal. species from the Indo-Australian Region
(Hymenoptera, Braconidae: Mimagathidinae)
by J . PAPP, Budapest
Abstract — Description of Orgilus moczari sp. n. $ from New Guinea, O. szelenyii sp. n. 9 from
Australia and O. turgus sp. n. rf from Sri Lanka is given. Designation of the type-specimens of O.
sumatranus (ENDERLEIN) and O. tibialis (ENDERLEIN). A key was compiled for the eight Orgilus
species of the Indo-Australian Region. With 23 figures.
Introduction — U p to now eight Orgilus H A L I D A Y species are known from the Indo-Australian Region; five species have been described previously i n this century, and three species
were recently discovered, their description are subsequently given.
Originally Orgilus pulcher (SZÉPLIGETI) was ranged i n the genus Blacus NEES, but A C H TERBERG ( 1 9 7 6 ) having examined the holotype, pointed out first that this species represents
the genus Orgilus H A L .
Ischius leucogaster was described by H O L M G R E N i n 1868 from Australia (Sidney). The
genus Ischius WESMAEL was synonymized with Orgilus H A L . i n 1840, consequently H O L M GREN'S species was transferred into the latter genus. However, R O M A N ( 1 9 1 0 ) recognized that
the name Orgilus leucogaster is a simple misinterpretation of the original description and it
belongs to the genus Microdus NEES within the subfamily Agathidinae. Eventually, the proper name of HOLMGREN'S species is as follows: Microdus leucogaster ( H O L M G R E N , 1868).
Below the eight Orgilus H A L . species of the Indo-Australian Region are enumerated i n
alphabetical order completed with the citation o f their original description :
1. Orgilus ashmeadi VIERECK, 1911, Proc. U.S. natn. Mus., 4 0 : 477, 9 c / — Philippines.
2. Orgilus moczari sp. n. 9 — Papua New Guinea.
3. Orgilus nigromaculatus CAMERON, 1906, J. nat. Hist. Soc. Bombay, 17: 105, 9 — Pakistan, China
(Kansu).
4. Orgilus pulcher (SZÉPLIGETI), 1905, Ann. Hist-.nat. Mus. Nat. Hung., 3 : 53, rf (Blacus) —
Singapore.
5. Orgilus sumatranus (ENDERLEIN), comb, n., 1912, Arch. Naturg., 78 A : 38, 9c/ (Eubadizon) —
Indonesia (Sumatra).
6. Orgilus swezeyi FULLAWAY, 1956, Proc. Haw. ent. Soc, 1 6 ( 1 ) : 4 1 , 9 a* — Hawaii.
7. Orgilus szelenyii sp. n. 9 — Australia.
8. Orgilus turgus sp. n. rf — Sri Lanka.
Orgilus moczari sp. n. 9
(Figs. 1-5)
9- Body 2.2 mm long. Head in dorsal view (Fig. 1 ) twice broader than long, temple behind
eyes strongly rounded, occiput feebly excavated. Head in frontal view (Fig. 2) distinctly one-quarter
broader than high, inner margin of eyes faintly diverging towards oral part, face also 1.5 times
wider above than high. Distance between tentorial pits equals with that between one tentorial pit
and nearest lower marginal point of eye. Malar space almost twice as long as basal width of mandible.
Maxillar palp unusually long, in lateral view as long as height of head, filamentous; joints of labial
palp thick (Fig. 3). Eye in lateral view (Fig. 3) nearly one-third higher than wide, and almost thrice
wider than temple. Ocelli forming an almost equilateral triangle, distance between two ocelli distinctly shorter than greatest diameter of an ocellus. OOL twice as long as POL (9:5-4, X 100, Fig. 1).
Head uneven, subshiny to dull. Temple behind and occiput not carinated. Antenna as long as body,
with 23 joints. First flagellar joint four times as long as broad, further joints gradually shortening
and indistinctly attenuating so that penultimate joint nearly twice as long as broad (5-6:3).
Thorax in lateral view one-and-a-half times as long as high. Pronotum, mesonotum, scutellum,
meso- and metapleuron coriaceous, dull. Propodeum very weakly coriaceous, subshiny to shiny,
without carination. Notaulix distinct but not deep, not crenulated. Sternaulix indicated by a broad
and shallow depression. Hind coxa coriaceous. Hind femur 3.5 times longer than broad. Two spurs
of hind tibia unequal in length, inner spur half and outer spur one-third as long as basitarsus.
Fore wing somewhat longer than body. Stigma 3.3 times as long as wide, emitting radial vein
a little distally from its middle, r l shorter than width of stigma and perpendicular to its longitudinal
axis; r2 feebly arched and approaching tip of wing; cuqul almost twice as long as cui, latter two
veins on a same line, cui absent (Fig. 4). Nervulus interstitial.
Abdomen somewhat longer than thorax, but shorter than head and thorax together. First
tergite (Fig. 5) widening posteriorly, 1.4 times as long as wide at hind, its two basal keels extending to
middle, its surface rugulose. Second tergite 1.45 broader before than long medially and one-third
longer than third tergite; third tergite more transverse than second tergite and 2.6 times broader
before than long medially (Fig. 5). Second tergite granulo-rugulose. Further tergites polished.
Ovipositor sheath as long as hind tibia and half basitarsus combined.
Body brownish yellow. Ocellar field black. Mandible, galea and palps yellow. Scape and pedicel
yellowish, first flagellar joint darkening yellowish, flagellum darkening to blackish. Legs somewhat
lighter brownish yellow. Ovipositor sheath black. Wings hyaline. Stigma opaque yellow. Venation
with yelowish pigmentation.
o* and host unknown.
Locality. 1 Ç (holotype): New Guinea (Papua), Wau, caught with Malaise-trap, 24 September
1972, leg. L . MÓCZÁR.
Figs. 1-5. Orgilus moczari sp. n. Q ; l = head in dorsal view, 2 = head in frontal view, 3 = head
in lateral view, 4 = distal part of right fore wing, 5 = tergites 1-5. — Figs. 6-7. Orgilus pulcher
(SZÉPL.) rf: 6 — distal part of right fore wing, 7 = tergites 1-3. — Fig. 8. Orgilus szelenyii sp. n. £ .
head in dorsal view
Holotype deposited in the Hungarian Natural History Museum, Budapest; Hym. Typ. No. 2882.
The new species is dedicated to its Hungarian collector, D R . LÁSZLÓ MÓCZÁR, the well-known
specialist of Aculeata.
The new species is related to O. pulcher (SZÉPLIGETI, 1905), the specific differences
between them are tabulated below:
O. moczari sp. n.
O. pulcher (SZÉPL.)
1. Maxillar palp in lateral
view about half as long as height
of head.
2. Radial vein reaching tip of wing,
r l almost as long as width of
stigma and directed somewhat out­
wards, cui present as a short
vein (Fig. 6).
1. Maxillar palp in lateral view
as long as height of head
(Fig. 3).
2. Radial vein approaching tip
of wing, r l distinctly shorter
than width of stigma and per­
pendicular to longitudinal
axis of stigma, cw3 absent
(Fig. 4).
3. First tergite more broadening
posteriorly, its hind width
2.5 times greater than fore
width, and its two basal keels
weakly converging (Fig. 5).
3. First tergite less broadening
posteriorly, its hind width
twice greater than fore width,
and its two basal keels parallel
(Fig. 7).
Orgilus szelenyii sp. n. 0
(Figs. 8-12)
9 . Body 4 mm long, somewhat elongated. Head in dorsal view (Fig. 8). twice broader than
long, temple behind eyes contracted, occiput moderately excavated. Head in frontal view (Fig. 9)
distinctly one-quarter broader than high, inner margin of eyes faintly diverging towards oral part,
face somewhat wider than high. Distance between tentorial pits equals with that between one tento­
rial pit and nearest lower marginal point of eye. Malar space twice as long as basal width of mandible.
Eye in lateral view (Fig. 10) nearly round, i.e. slightly higher than wide, and distinctly thrice wider
than temple. Ocelli forming almost an equilateral triangle, distance between two ocelli minutely
longer than greatest diameter of hind tocellus. OOL 1.7 times longer than POL (12:7, X 100, Fig. 8).
Face shiny, with fine, even and superficial punctation. Frons coriaceous and dull. Vertex, temple
and occiput polished. Temple behind carinated. Occiput not carinated. Antenna as long as body,
with 35 joints. Flagellar joints 1 — 5-6 2.5 times as long as broad, further ones slightly attenuating
and shortening so that penultimate joint 1.4-1.5 times as long as broad.
Thorax in lateral view 1.8 times as long as high. Mesonotum on its hind half with fine punctures.
Propodeum with rather transverse strio-rugosity, without carination. Otherwise thorax smooth
and shiny. Notaulix deep, narrow, finely crenulated. Sternaulix linearly impressed on lower hind
half of mesopleuron. Hind coxa above subshiny, coriaceous. Hind femur four times as long as
broad. Two spurs of hind tibia unequal in length, inner spur half and outer spur about one-third
as long as basitarsus.
Fore wing as long as body. Stigma four times longer than wide, emitting radial vein from its
distal third, r l directed outwards and as long as width of stigma, r2 feebly arched and reaching tip
of wing, cuqul somewhat longer than cu2, cu3 absent (Fig. 11). Nervulus postfurcal.
Abdomen about as long as thorax. First tergite (Fig. 12) distinctly broadening posteriorly,
1.25 times as long as wide at hind, its median surface granularly uneven, otherwise smooth and
shiny. Second tergite almost one-third broader before than long medially, third tergite more transverse
than second tergite and 2.5 times wider before than long medially; second tergite one-third longer
medially than third tergite (Fig. 12). Second tergite antero-medially rugulo-subrugulose with longi­
tudinal element, otherwise smooth; further tergites polished. Ovipositor sheath distinctly twice as
long as hind tibia or as long as abdomen and half thorax together.
Body yellow to straw yellow. Ocellar field black. Mandible and palps yellow, galea pale yellow.
Scape yellow, its outer side black. Flagellum blackish, below yellowish, apically fully dark. Metanotum and propodeum black. Legs lemon yellow, last tarsal joints and pulvilli blackish. First tergite
black, its hind third yellow. Ovipositor sheath black. Wings hyaline. Stigma yellow with dark uppermargin. Carpal vein and metacarp greyish, further veins greyish-yellowish pigmented.
cf and host unknown.
Locality. 1$ (holotype): South Australia, Belair, 6 0 km NE from Adelaide, 11-21 January,
leg. SZELÉNYI.
Holotype deposited in the Hungarian Natural History Museum, Budapest; Hym. Typ. No.
2883.
The new species is dedicated to its Hungarian collector, D R . GUSZTÁV SZELÉNYI, the wellknown specialist of Chalcidoidea and Proctotrupoidea.
The new species seems closely allied with O. swezeyi F U L L A W A Y , 1956, their specific
distinction is compiled in a tabular form below:
O. szelenyii sp. n.
O. swezeyi F U L L .
1. Antenna with 35 joints, penultimate
3-4 joints 1.5-1.4
times longer than broad.
2 . cui absent (Fig. 11).
3. Second tergite mostly smooth,
only antero-medially finely
rugose.
4. Ground colour of body yellow;
ocellar field, metanotum,
propodeum and first tergite
black.
1. Antenna with 26 joints penultimate
3-4 joints cubic.
2. cui present and slightly longer than cu2.
3. Second tergite mostly finely
rugulose.
4. Ground colour of body black;
clypeus, mandible, palps and legs
yellowish to reddish brown.
Orgilus turgus sp. n. rf
(Figs. 1 3 - 1 6 )
cf. Body 4.5 mm long, Head i n dorsal view (Fig. 13) rather subcubic, 1.8 times broader than
long, temple behind eyes obliquely contracted, occiput weakly excavated. Head in frontal view
slightly broader than high, inner margin of eyes parallel, face 1.25 times wider than high. Tentorial
pit large and deep, distance between pits one-third greater than that between one tentorial pit and
nearest lower marginal point of eye. Malar space twice as long as basal width of mandible. Eye
i n lateral view 1.9 times higher than wide, temple slightly wider than eye (Fig. 14). Ocelli forming an
isosceles triangle, distance between fore and hind ocelli one-quarter shorter than distance between
hind ocelli, POL = OOL (Fig. 13). Face and clypeus shiny, with evenly disperse small punctures.
Frons, vertex and temple polished. Temple behind carinated, occiput not carinated. Antenna as
long as body, with 37 joints. First flagellar joint twice as long as broad, further joints gradually
shortening and attenuating so that penultimate joint 1.6 times as long as broad.
Thorax in lateral view 1.7 times as long as high. Upper half of pronotum uneven and shiny,
its lower half crenulo-rugose. Mesonotum smooth and shiny, with extremely fine hair-punctures.
Notaulix narrow, crenulated. Scutellum with some shallow and small punctures, shiny. Mesopleuron
polished, sternaulix crenulated. Propodeum rugose and without carination. Outer side of hind coxa
smooth to uneven, above basally rugo-rugulose. IHind femur 4.7-4.8 times as long as broad. Inner
spur of hind tibia only somewhat longer than outer spur, former just shorter than half basitarsus.
Fore wing one-sixth shorter than body. Stigma 4.2 times longer than wide, emitting radial vein
distally from its middle, rl directed outwards, rl straight and ending well before tip of wing; cuqul
somewhat longer than cui; cui present and minutely shorter than cui (Fig. 15). Nervulus almost
interstitial, i.e. scarcely postfurcal.
Abdomen somewhat longer than head and thorax together. First tergite (Fig. 16) evenly broaden­
ing posteriorly, 1.6 times longer than wide at hind, laterally strio-rugose, basal two keels short,
otherwise smooth, shiny. Second tergite quadrate, slightly longer than wide before, distinctly longer
than third tergite. Latter transverse, 1.5 times wider before than long medially (Fig. 16). Second
tergite antero-laterally uneven, otherwise together with further tergites polished.
Head, thorax and first tergite black, abdomen brown. Antenna blackish. Palps, labrum and
galea brown. Coxae 2-3 black, otherwise legs reddish brown to dark brown. Tegula black, parategula
yellowish brown. Wings faintly fumous. Stigma brown, venation light brown pigmented.
$ and host unknown.
Locality. 1 çf (holotype): Ceylon = Sri Lanka, Pattipola, 2000 m, 2 2 February 1902, leg.
BIRÓ.
Holotype is deposited in the Hungarian Natural History Museum. Budapest; Hym. Typ. No.
2884.
The new species stands nearest to O. nigromaculatus C A M E R O N , 1906, the two species
are distinguished as follows:
O. turgus sp. n.
1. Ground colour of body rufotestaceous with black
pattern on ocellar field,
thorax and first tergite.
2. Antenna with 37 joints.
3. Nervulus almost interstitial,
scarcely postfureal.
O. nigromaculatus Cam.
1. Ground colour of body black,
abdomen brown.
2. Antenna with 29 joints.
3. Nervulus distinctly postf ureal.
Orgilus sumatranus (ENDERLEIN) comb. n.
Eubadizon sumatranum ENDERLEIN, 1912, Arch. Naturg., 78 (A): 38, çf Ç , type locality: Sumatra,
Soekaranda.
I designated the single male specimen as lectotype viewing that the head of the single
female specimen (i. e. the paralectotype) is lacking.
Designation o f the rf lectotype and the Ç paralectotype (the two type-specimens had
received the same labels except the sex sign on the third label): „ S u m a t r a , Soekaranda,
Dr. H . D o h m S." (first label, printed)—"Type" (second reddish label, printed)—"Eubadizon
Figs. 9-12. Orgilus szelenyii sp. n. 9 : 9 = head in frontal view, 10 = head in lateral view, 11 =
distal part of right fore wing, 12 = tergites 1-3. — Figs. 13-16. Orgilus turgus sp. n. çf : 13 = head in
dorsal view, 14 = head in lateral view, 15 = distal part of right fore wing, 16 = tergites 1-3
sumatranum Enderl. çf" (lectotype) " $ " (paralectotype) (Enderlein's handscript) " D r . En­
derlein det. 19" (printed) " 1 2 " (Enderlein's handscript) (third label)—"Lectotypus" (printed
red) "Orgilus sumatranus (End. 1912). 0*, Papp 1981." (my handscript) (fourth label, of male
with printed red frame).—"Paralectotypus... $ . . . " (fourth label of female, text otherwise
agreeing w i t h that of the lectotypus).
Lectotype and paralectotype are deposited in the Instytut Zoologiczny, Warszawa.
* **
The "Type" of Eubadizon tibiale E N D E R L E I N was also lent to me by D R . E. K I E R Y C H , and
an examination of it resulted the change o f its taxonomical status :
Orgilus tibialis (ENDERLEIN) comb. n.
e
Eubadizon tibiale ENDERLEIN, 1912, Arch. Naturg., 78 (A): 39, 9» tyP locality: British Honduras,
Manatee (Central America).
Eubadizon tibialende SHENEFELT, 1970, Cat. Hym. 5, Brae. 2, p. 249, (new name for E. tibiale ENDERLEIN 1912 nec HALIDAY 1835).
The following four labels are attached to the holotype designated here: "Manatee,
Br. H o n d . I I " (first label, handscript)—"Type" (second reddish, label, printed)—"Eubadi­
zon tibiale Enderl. Type" (Enderlein's handscript) " D r . Enderlein det. 19" (printed) "12"
(Enderlein's handscript) (third label)—"Lectotypus" (printed red) "Orgilus tibialis (End.
1912). 9 . Papp 1981." (my handscript) (fourth label).
Holotype is deposited i n the Instytut Zoologiczny, Warszawa.
* **
K E Y T O T H E ORGILUS
HAL.
SPECIES O F T H E I N D O - A U S T R A L I A N R E G I O N
1 (10) G r o u n d colour of body yellow or reddish yellow w i t h more or less black or blackish
b r o w n pattern.
2 (3) First tergite distinctly twice as long as broad at hind, faintly widening posteriorly
(Fig. 17). Tergites 1-3 evenly and rather densely granulöse. Ovipositor sheath some­
what longer than body. Radial vein reaching tip of wing, cu3 present, cuqul thrice as
long as cu2 (Fig. 18), nervulus postf ureal. Sternaulix narrow, finely crenulated. Head
in dorsal view contracted (Fig. 19), though somewhat less contracted than that o f
O. szelenyii sp. n . (cf. Fig. 8). Ocellar field black; hind third of tergite 3 and apex o f
femur 3 + tibia 3 blackish brown. Qçf : 6 m m . — Indonesia (Sumatra)
O . sumatranus (ENDERLEIN, 1912), comb. n .
3 (2) First tergite at most 1.4-1.5 times as long as broad at hind, more or less distinctly
widening posteriorly (Figs. 5, 7, 12). Tergites 1-2 w i t h other sculpture, tergite 3 al­
ways polished. Ovipositor sheath distinctly shorter than body.
4 (5) Antenna with 35 joints. First tergite relatively less long, only 1.25 times as long as
wide at hind (Fig. 12). Nervulus postfurcal, cu3 absent (Fig. 11). Ovipositor sheath
twice as long as hind tibia. Yellow to straw yellow. Ocellar field, metanotum, pro­
podeum and first tergite black. 9 • 4 mm. — Australia (Adelaide)
O. szelenyii sp. n .
5
6
7
8
( 4 ) Antenna at most w i t h 3 0 joints. First tergite relatively long, at least 1.3, usually
1.4-1.5 times, as long as wide at hind (Figs. 5, 7 ) .
( 7 ) Maxillar palp i n lateral view as long as height o f head (Fig. 3 ) . cu3 entirely absent
(Fig. 4 ) , nervulus interstitial. Sternaulix indicated by a broad and shallow depression.
First tergite 1.4 times as long as wide at hind. Radial vein approaching tip of wing,
r l shorter than width o f stigma. Ovipositor sheath as long as hind tibia and half
basitarsus combined. Body brownish yellow except black ocellar field. 9 • 2.2 m m . —
New Guinea (Papua)
O. moczari sp. n .
( 6 ) Maxillar palp i n lateral view about half as long as height of head. cu3 more or less
present (Figs. 6, 2 0 ) , nervulus postfurcal. Sternaulix distinct as a furrow and cren­
ulated.
( 9 ) Radial vein approaching tip of wing, r l issuing more distally from middle of stigma,
cu3 half as long as cuqul (Fig. 2 0 ) . First tergite only 1.2 times longer than wide at hind
Antenna 2 9 jointed. T h i r d femur 4.5 times as long as broad. Second tergite shining,
punctate, with a median longitudinal narrow, smooth, slightly raised band; punct­
ures large laterally but posteriorly and i n the middle alongside median band smaller
and more numerous and therefore reticulate-punctate. Ovipositor sheath with similar
Figs. 17-19. Orgilus sumatranus (END.) $ : 17 = first tergite, 18 = distal part of right fore wing,
19 = head in dorsal view. — Fig. 20. Orgilus nigromaculatus CAM. 9 : distal part of right fore wing. —
Figs. 21-23. Orgilus swezeyi FULL. $ : 2 1 = distal part of right fore wing, 2 2 — tergites 1-2, 23 =
head in lateral view
length to previous species. Body rufo-testaceous. Ocellar field, mesopleuron and
first tergite medially, further tergites nearly entirely black. 9 5 mm. — Pakistan,
China (Kanshu)
:
O . nigromaculatus C A M E R O N , 1 9 0 6
9
( 8 ) Radial vein reaching tip of wing, r l issuing less distally from middle o f stigma, cui
less than half as long as cuqul (Fig. 6 ) . First tergite 1.3 times longer than wide at
hind. Antenna 2 5 jointed. Third femur 3.8 times as long as broad. Second tergite
unevenly granulöse medially, otherwise polished. Body yellow with rich black pat­
tern o n ocellar field, propodeum, tergite 1 and tergites 4 - 7 . çf: 3 m m . — Singapore
O . pulcher (SZÉPLIGETI, 1905)
1 0 ( 1 ) G r o u n d colour o f body black or brownish black w i t h rather few yellow, reddish
yellow or testaceous pattern.
1 1 ( 1 4 ) Radial vein ending well before tip o f wing, cui present (Figs. 15, 2 1 ) . First tergite
1.5-1.6 times as long as wide at hind (Figs. 16, 2 2 ) .
1 2 (13) Length of metacarp t o tip of R distinctly shorter than length of stigma, rl as long as
w i d t h o f stigma, cui longer than cu2 (Fig. 2 1 ) ; nervulus postfurcal. Second tergite
rugo-rugulose, Spiracle o f first tergite protruding, tergite itself less broadening poste­
riorly (Fig. 2 2 ) . Antenna with 28 joints, penultimate 3^4 joints cubic. Eye in lateral
view only 1.5 times higher than wide (Fig. 23). Ovipositor sheath as long as abdomen
and propodeum together. 9 ö * 3 . 8 - 4 m m . — Hawaii
:
O . swezeyi F U L L A W AY,
1956
1 3 ( 1 2 ) Length of metacarp to tip of R distinctly longer than length o f stigma, r l longer than
w i d t h of stigma, cui shorter than cu2 (Fig. 1 5 ) ; nervulus almost interstitial. Second
tergite polished. Spiracle of first tergite not protruding, tergite itself more broadening
posteriorly (Fig. 16). Antenna with 37 joints, penultimate joint 1.6 times as long as
broad. Eye in lateral view 1.9 times higher than wide (Fig. 14). çf : 4.5 m m . — Sri
Lanka
O . turgus sp. n .
1 4 ( 1 1 ) Radial vein reaching tip of wing, cui absent (Fig. 5 1 , i n B A L T A Z Á R 1962, p . 7 5 5 )
First tergite twice as long as wide at hind. Antenna at least with 3 0 joints. Nervulus
interstitial. Qçf: 3.5 m m . — Philippines
O . ashmeadi VIERECK, 1 9 1 1
* * *
Acknowledgement — M y taxonomical work was helped by M R . T. HUDDLESTON (British
Museum, Nat. Hist., London) by examining and making drawings of some morphological features
of the holotype of Orgilus nigromaculatus C A M . ; by D R . E. KIERYCH (Instytut Zoologiczny P A N ,
Warszawa) by lending me the types (1 9 + Içf) of Orgilus sumatranus (END.) (and Orgilus tibialis
END., 1 9 too) from the Enderlein's Collection; and by G. M . NISHIDA (Bernice P. Bishop Museum,
Honolulu) by loaning me the female holotype of Orgilus swezeyi FULL. TO all these colleagues should
go my most sincere thanks.
References
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Author's address: D R . J E N Ő P A P P
Zoological Department
Hungarian Natural History Museum
Budapest V I I I , Baross utca 13
H-1088