Revision of Swedish Homalocephala Zetterstedt (Diptera,
Transcription
Revision of Swedish Homalocephala Zetterstedt (Diptera,
Revision of Swedish Homalocephala Zetterstedt (Diptera, Otitidae) HUGO ANDERSSON Andersson, H.: Revision of Swedish Ilozalocephala Zetterstedt (Diptera, Otitidae). IRevision av de svenska artema av flugsliiktet Homalocephala Zetterstedt (Diptera, Otitidae).1 - Ent. Tidskr. 1 12:27-32. Ume6, Sweden 1991. ISSN 0013-886x. The Swedish species of Honalocephala Zetterstedt, 1838, are revised. Psairoptera_biumbrata Wahlberg, 1838, is designated as type species of Psairoptera Wahlberg, 1838, a junior synonym of Homalocephala. Lectotypes are designated for Homalocephala albitarsis Zett6rstedt, 1838, Psairoptera bimaculata Wahlberg, 1838, Psairoptera biumbrata Wahlberg, 1838, Psairoptera apiialis Wahlberg, 1838, and Psairoptera angustata Wahlberg, 1838. Both PsairopterabipunctataLoew, 1854, H.albitarsis-andH.biumbrataaredistinct,validspecies. is a junior synonym of Homalocephala albitarsis Zetterstedt, 1838 (syn. n.)' The Swedish distributions of and a key to the species are presented. H. Andersson, Swedish Mus. Nat. Hist., clo Dept. Syst. Zool., Helgonavtigen 3, 5-223 62 Lund, Sweden. Homalocephala Zetterstedt is currently placed in subfamily Euxestinae of family Ulidiidae (Zaitzev 1984) or preferably in subfamily Ulidiinae of family Otitidae (Steyskal 1987). The flies of Homalocephala are not common. Their distribution is concentrated to Fennoscandia and NW USSR. Two species have a wider European distribution and three of the six Fennoscandian species are Holarctic. Psairoptera Wahlberg is currently listed as a junior synonym of Homalocephala (Zaitzev (1847) Homalocedesignated 1984). Zetterstedt phala albitarsis Zetterstedt as type species of Psairoptera. This type designation is invalid as this species was not included in the original description of P sairoptera. Zetterstedt's Insecta Lapponica was published in five fascicles and Homalocephala was described in Fascicle IV, published in 1838 (Persson, in litt.). Wahlberg had, according to the introduction of his paper, published as pre-print in 1838, not seen Fascicle IV of Insecta Lapponica before describing Psairoptera. Dr Persson works on the problem whether Fascicle IV or the pre-print was published first. Until this problem is solved, the valid name of the genus is Homalocephala according to common use. Homalocephala Zetterstedt Homalocephala Zetterstedt, 1837 (nomen nudum); Zetterstedt, 1838 (type species: H. albitarsis Zetterstedt, 1838, by monotypy). PsairopteraWahlberg, 1838 (type species: P. biumbrata Wahlberg, 1838, by present designation). Key to Fennoscandian species 1 . One pair of scutellar bristles (sc) . . f1. biseta (Frey) - Twopairsofsc..... black. Third antennal .........2 2. Halteres - segment distinctly longer than broad. Legs predominantly black. Wing . . ..H. apicalis (Wahlb.) as in Fig. 7 .... . Halteres white. Third antennal segment rounded, . aboutaslongasbroad .........3 3. l,egs completely yellowish red. Wing as in Fig. 8 H bimaculln (wahlb) - rrg, "*t ^i".rv uiu"t. Frons narrow (Figs 5,6). Abdo4. 5. Face andjowls dark. men narrow with few short bristles. The apical wing spot niurow, reaching vein Cu1 (Fig. 9) . Face *i:"*r, i" rroni *rr,"1ef#J'Jff.tE#t, ......5 3). Abdomen broader and with numerous, stouter bristles.. Basal wing spot restricted to wing field between veins Sc and Ry. Apical wing spot small, rounded, not reaching R+*s Gig. l0). Scutellum and ovipositor sheath (Tz+Sr) pruinose, covered by microchaetae. Apical part l2). of surstyli directed outwards (Fig. ........H. albitarsisZ.ett. 28 Hugo Andersson Ч ヽl L′ / ク 彼 / ル 4 ノー ヽ ヽ ヽ ヽ Figs 1 6.〃 ο″α′ οε 力α′ α,head,lateral(1,4,5),front(2),and dOrsal(3,6)view -1-3 わル わ″た (Wahlb)-5“ 〃 α″gン s″ ′ α(Wahlb.). `′ “ 〃 α′ ♭′ ′ αrsノ s Zett.-4.〃 Revision of Swedish Homalocephala 29 Basal wing spot usually extended as brownish area covering anteiror transverse vein (t"). Apical wing spot larger and passing vein &*s Gig. 11). Scutellum and ovipositor sheath shining, without microchaetae. o:':' l* :1 ::"11i ^fiiTfi^olXiii*liiir Homalocephala albitarsis Zetterstedt Homalocephala albitarsis Zenerstedt, 1838:.7 49. Psairoptera bipunctata l.oew, 1854:.22, syn. n. Homalocephala bipunctata Loew: Ringdahl I93 1-195 1 Zenerstedt 1838: To, N; 1847 p. p.: T. Wahlgren 1919 p. p.: Lpl. Ringdahl 1948: Nb (as bipunctata Loew); 1931, 1951: To. Abisko, Jebrenjok.k (as bipunctata Loew). Both sexes were described from Norway, Dovre, leg. Boheman and from Sweden, Tome lappmark, Jukkasjiirvi. The Swedish specimens were bred from puparia found in rotting bark of Pinus. No syntype from Dovre is present in coll. Zetterstedt or coll. Boheman. The bred material from Jukkasjiirvi is represented in coll. Zetterstedt in Lund by 3d39 and eight empty puparia. All the imagines are teneral and practically without dark spots on the wings but with pruinosity on the scutells and the seventh female tergites. The top specimen on a pin with two males and one empty puparium and labelled "H. albitarsis ins L. d. Psair. 2 umbrata Wbg. Juckasj" in Zetterstedt's handwriting is here designated as the lectotype of H. albitarsis Zntt. The tip of the abdomen of the lectotype specimen has been detached and the genitalia relaxed. The removed aMominal parts have been mounted on the pin in glycerol in a plastic tubing. The other 2d39 are designated as paralectotypes. All studied type specimens are conspecific. The name is valid in the binomen H omaloc ephala albitar sli Zetterstedt, I 838. In 1854, Loew described the new species Psairoptera bipunctata ftom Poland giving the restricted dark area at Sc as the only differential character from "albitarsis 7.ett." (= the true biumbrata Wahlb.), i.e. the description of bipunctata l-oew l. Homalocephala, wing. -7. H. apicalis -8. H. bimaculara (Wahlb.). -9. H. angustata (Wahlb.). - 10. H. albitarsis Zett. - ll. H. biumbrata Figs 7-1 (Wahlb.). agrees with the true albitarsis Zatt. All following authors have applied the name bipunctata Loew in that sense and Ps. bipunctata Loew. 1854, surely is (wahlb.). ajunior synonym of H. albitarsisZntt. Vb: SkellefteAtrakten, 17.1956, I d, Ringdahl. Studied material. Sweden. Sm: Hyltebruk, 28.6- To: Jukkasjiirvi, datrl. paralectotypes). 19, t6-23.7.1987, t9,715-23.6.1988, 2329.6.1988, Og: Gusum, ld, 5d19, Malaisetrap, P. & J. Ard6. Vg: Tcireboda, Sisjrin, 12.6.1953, 19, S. Wahlberg. Vr: Munkfon, 1.8.1951. 19, Ringdahl. Gauniz. 8.7.1986, 99, 15.6.1988, - 13-19.7.1986, ld, 1d19, - Nb: Pi- tel,4.7.1947,29, Ringdahl; LuleA, 14.7.1919. -ld, Ring- - - - 3 d 3 9, Zetterstedt (lectotype and Distribution. Known from GB, DDR, N, P, S, SF and the norhwest part of European USSR. Also reported from North America. 30 Hugo Andersson 。 3・ ´ 琢 ‘ 〆 o ゞ ヽ / Figs 12-13.〃 ο″α′ οε 力αた,surstyli,posteHor view,and ventral cpandrial plate,intemal view -12 Zett-13〃 bル″b″ra(Wahlb.). `′ Biology. Bred from rotten bark of Pinus (Zetterstedt 1838) and from Douglas fr stamp (Cogan & Dear 1974). biumbrata Wahlberg, 1838:2 l. Homalocephala albitarsis auctt. nec Zetterstedt, P sairoptera bimaculata Wahlberg, 1838:20. Wahlberg 1838: Og, Gusum. Zenerstedt 1847: Jii, Faxtilven and Siiter. Watrlgren l9l9: Og. Studied material. Sweden. Sm: Bolmen, 6.1,1957,16, 20.8.1957, I 9. Ringdairl. Og: Gusum, 15 d I 9 9. Wahtberg. Up: Rimbo 25.3.1971, 1d I 9, Hedquist. Jii: 10.8.1840, I 9, I d; Zetterstedt. Siiter at 1 838:749. Wahlberg 1.838: Og, Up, Jii. Zenerstedt 1847: Og. Vg. Ja, Faxiilven; Ostersund, Villam sdter albitarsis Zntt.). Wahlgren l9l9: Og - Lpl (incl. albitarsisZrtt.). Ringdahl 1935: Sk; 1948: Sk, Sm, Jii; 1951: ld (as albitarsis 7ntt.). (x Ja. The female was described from material taken rarely in Sweden, Ostergcitland, Gusum. In coll. Wahlberg in Swedish Museum of Natural History, Stockhohn, there are 4d I I I, labelled with a small, light green rhombic tag indicating the coastal area of Ostergcitland where Gusum is situated arrd 26 I 9, labelled "O. G." and "P. Wg." indicating that the material was collected by Wahlberg in Ostergdtland. In coll. Boheman in the same museum there are 8d59, labelled "O. G." and "P. Wg." and in coll. Roth in Lund ld29 with the same labelling. It is now impossible to identify the type series among this material. Anyhow, I have selected one of the females in coll. Wahlberg as the lectotype and labelled it so. The name is valid in the binomen H omalocephala bimaculata (Wahlberg, I 838). - 9.8.1840, Faxiilven, Distribution. Known from S, SF, and the northwest part of European USSR. Biology. Unknown. H omalocephala biumbrata (Wahlberg) H omaloc ephala bimaculata (Wahlberg) P sairoptera 〃 α′ bj′α rsJs - Krokumsiilven, Both sexes were described from material from Swe- den, Uppland, Stockholm, Haga, leg. Boheman, from Osterg<itland, Gusum, leg. Wahlberg and from Jiimtland, leg. Boheman. tn coll. Wahlberg there are 7d169 from Gusum (labelled with light green rhombic tags meaning collected in the coastal area of Ostergritland) and in coll. Boheman under the nane albitarsis Zntt. l9 with one puparium from Uppland, the coastal area (gilt rhombic tag). This specimen could belong to the material from Haga bred by Boheman. ln coll. Zntterstedt there are under the nwne albitarsis Zntt.6d69 (labelled: "O. G." and "P.Wg.") one bred female with puparium from Jiimtland (white and blue tags), leg. Boheman and 26 I 9 from Gusum, leg. Wahlberg. [n coll. Roth there arc 1629 from Gusum, leg. Watrlberg, and in coll. Wallengren in Lund l9 from Gusum, leg. Wahlberg. I have designated as the lectotype a male with green tag in coll. Wahlberg and restricted Revision of Swedish Homalocephala 3l the type locality to Sweden, Ostergdtland, Gusum. The name is valid in the binomen Homalocephala biumbrata (Wahlberg, 1 838). Studied material. Sweden. Sf,: I 9. Boheman: Arkelstorp. 20.6.1919.1d. Ringdahl: Asljunga. 21.6.1915. 19. Bolrnen, 27.7.1924.2?. 1.8.1931.3?. Ringdahl. - Sm: ldl9, t4.6.1957, t6 ta, 24.6.t957. 19. r r.7.1957. Ringdahl; Hyltebruk, 22.6-8.7.1986, 1 9, 13-19.7.1986, 1 9. 7-15.6.1988. t6 . 23-29.6.1988, 1d, 9-19.8.1988, 1 d, P. & J. Ard6; Ryddbruk, 16-23;7 .1987 , 1 I , P. & J. Ardri: Skeen. 28.6.1942. l d l ?. Ringdahl: Solgen. Ol: Fiirjestaden. 3.7.1946. I I . Up: StockOg: Gusum, 166269, Wahlberg. Vr: Syssleholm, Haga, I 9, I puparium, Boheman, Ja: Vallbo, 4.7.1935, back, 25.6.1949, 1 9, Ringdatrl. M: 19, Ringdahl fue. 11.8.1946.2d29. Ringdahl. Pitel, 4;7.1947, I 9, Rinedahl. 6.7 .1933. I d , Ringdaht. leg.?. - - - - - Distribution. Known from GB, S, SF and the northwest part of European USSR. Biology. Larvae are found among roften leaves The female was described from a single specimen collected in Sweden, Ostergcitland, Gusum in 1837. In coll. Wahlberg there are 10d79 from Gusum (light green rhombic tag); in coll. Boheman 13 d 3 I C'O. G.", "P. Wg"); in coll. Zntterstedt3629; in coll. Roth 4d I g; and in coll. Wallengren 19, all from Gusum, leg. Wahlberg. As the holotype specimen cannot now be traced, I have designated one of the females in col1. Watrlberg as the lectotype of the species and labelled it accordingly. The name is valid in the binomen Homalocephala angustata (Wahlberg, 1838). Studied material. Sweden. 69: Gusum, 30d 14?, Wahlberg. This is the only known locality in Sweden. Wahlberg frsi found the species in I 837 and, according to Zetterstedt (1860) he refound it in Gusum in July, 1857. I have seen material from Finland from the 1930-ies. (Wahlberg 1838). Distribution: Known from S, SF and the northwest part of European USSR. H omalocephala apicalis (Wahlberg) Biology. Unknown. P sairoptera apicalis Wahlberg, 1838:21. Wahlberg 1838: Og. Zetterste.dt 1847: Og. Up. Holrnia. Fi, UleAborg. WaUgren 1919: Og, Up. Ringdahl 1931:To; 1948: Ol; 1951: Og, Up, Lpl. Acknowledgements: I wish to thank Roy Danielsson, Lund, and Per lnge Persson, Stockholm, for loan of material from the museum collections. Both sexes were descrihd from a small material ("rarior") from Sweden. Ostergdtland, Cusum. ln coll. Wahlberg there are 1l d9I from Gusum (light green rhombic tag); in coll. Boheman 167I from the type area ("O. G.", "P. Wg"); in coll. Zetterstedt I d I 9; in coll. Roth 1d and in coll. Wallengren I 9, all from Gusum, leg. Wahlberg. I have designated a male in coll. Wahlberg as the lectotype of P. apicalis Wahlberg and labelled it accordingly. The name is valid in the binomen Homalocephala apicalis (Wahlberg, 1838). References Studied material. Sweden. Sm: Hyltebruk, 7-15.6.1988, 56:201-203. - 1948. Nya fynd av holometopa flugor. - Ent. Tidskr. 69:14. Lapplands, Jiimtlands och Hiirjeda- 1951. Flugor frAn(Diptera lens fjiilltrakter Brachycera). - Opusc. ent. 16:113-186. Steyskal, G. C. 1965. Otitidae. - In: Stone et al.: A 1d; (Malaise-trap), q, & I 9, A. Jansson. J. Ardd; Skillingaryd, 18.7.1940. Og: Gusum, 20d 18I, Wahlberg. - Up: The coastal- area (gilt rhombic tag), 1 I, Wahlberg; To: Abisko. Stockholm, 6.7.1922, 19; Ringdahl. .1922, 1 d, Ringdahl. 1913, ld; Ringdatrl. 6.1 - - Norge, without locality, July Distribution. Known from N, S, SF, and the northwest part of European USSR. North America. Biology. The species has been reared from sap of Pinus monticola in USA, Montana (Steyskal 1965). H omalocephala angustata (Wahlberg) P sairoptera angustata Wahlberg, 1838:22. Wahlbe.rg 1838: Og. Zetterstedt 1847. 1860: Og. Wahlgren 1919: Og. Cogan, B. H. & Dear, J. P. 1974. Additions and corrections to the list of British Acalypuatae Diptera. - Ent. mon. Mag. 1 l0: 173-181. Frey, R. 1908. Mitteilungen tiber finnliindischen Dipteren. - Acta Soc. Fauna Flora fenn. 31: l-24. Perry, I. & Stubbs, A. E. 1978. Dead wood and sap runs. In. Stubbs & Chandler: A dipterists handbook. The amateur entomologist 15: 65J3. Ringdahl, O. l93l.Insektfaunan inom Abisko Nationalpark. III:6 Flugor-Diptera Brachycera. - K. Sv. Vet. Akad. Skr. i naturskyddsiirenden l8: 1-32. 1935. Fyndorter f6r sydsvenska Dipera. - Ent. Tidskr. - - catalog of the Diptera north of Mexico. - USDA Agr. Handbook No. 276: 642454. 1987. Otitidae. In: Manual of Nearctic Diptera 2: 799-808. Agriculture Canada, Monograph No. 28. Wahlberg, P. F. 1838. Bidrag till svenska diptemas kiinnedom. Stockholm (P. A. Norstedt & S6ner). K. 1839. Bidrag till svenska diptemas kiinnedom. Vet. Acad. Handl. 1838: 1-23. Wahlgren, E. 1919. TvAvingar. Diptera Cyclorapha Svensk insektfauna Schizophora. Fam. 13-20. I 1:22. Uppsala. - - - - - 32 Hugo Andersson Zaitzev, V. F. 1984. Ulidiidae. - In: Soos & Papp: Catalogue of palaearctic Diptera. 9: 5946. Zetterstedt, J. W. 1837. Familiarum, generum et specierum dipterorum, in Fauna insectorum Lapponica descriptorum. - Isis von Oken. 1837: 2847. Leipzig. 1838. Insecta Lapponica III, Diptera. Pp. 485-868. - Leipzig. 1847, 1860. Diptera Scandinaviae. XIV: 6191-6609. Vl 2363-2580, Sammanfattning De fem svenska artema i sliiktet Homalocephala Zetterstedt (Otitidae) revideras. En bestiimningstabell ges frir de Fennoskandiska artema. Fyra av artema iir vitt spridda i Sverige, med.an H. angustata (Wahlberg) endast iir kiind fr6n Ostergdtland. Lektotyper har utsetts och en ny synonym ges. Om tre svarskittbara spetsvivlar Dieckmann, L. 1989. Die mitteleuropiiischen Arten der Apion (Catapion) seniculus-Gruppe (Coleoptera, Cur- culionidae). Beitriige zur Entomologie 39(2): 23'7-253. Vivelspecialisten Lothar Dieckmann, Eberswalde, i tryck f6 se sitt tio6riga arbete om de centraleuropeiska Apion-artema i seniculus-gruppen (usl. Catapion). Bakom denna artikel ligger en entregen strevan att inf<irskaffa typer och originalbeskrivningar, varvid inte mindre in 25 namn blivit granskade - trots att gruppen hann att fcire sin diid visat sig innehilla endast tre arter. En av de sista kontrollsvArigheterna giillde Apion tenuiu.s Gyllenhal. D[ Dieckmann hade besvdr med att fi se dessa typdjur, lAnade jag I 987 med Sten Jonssons hjiilp fem djur som fanns i Gyllenhals samling under detta namn. Materialet vidarebefodrades omedelbart till Dieckmann, som hiirigenom kunde konstatera att tenuius hr en yngre synonym tlll seniculus. Djuren sitter nu som lekto- resp paralektotyper i Gyllenhals samling i Uppsala. Jag har tidigare (1988, Ent. Tidskr. 109: l0l) redovisat Dieckmanns urskiljande av A. meieri som egen art. Utdver vad som tidigare skildrats om dessa arters levnadssAtt namner Dieckmann smultronklciver (Trifulium fragiferum) som neringsviixt ilt A. seniculus. Han anger f<iljande skiljekaraktiirer fdr de b[da artema: (l) kroppsliingd Fig.1“ .々 Jο ″ -1-2.Penis frh sidan.-lAs`れ たンルs -2 A ″ ス ′ ,halsskё ld och tackvingar -3 `″ “`′ ovanifr肺`j`rJ 4-5.Huvud ovanifran,9.4.A ″ ″ J― 5.As`″ jε クルs Omritat fran Dieckmalul(1989).`た hos″ ブ εン′ ンsl,5-2,l rnnl; `J`rJ l,9-2,2 rnm,hos s`″ ′J kraftigare an hos sι ガεタルs (2)peniS hOS“ `Jι ιブ ′′ノtydligt av― 4Jε ルs m el m “ parallell;(4)honanS Snytc hos“ ″,smalare och `た mcstadels langre med parallella sidor aven mellan antennね stena och snytets bas,och ёgonen nlindre och mcr utstaende an hos sι ″ブ ε ′s(Fig.4,5). “ れJ Dieckmann, Gruppens trette alt ar Aた θ “′ (Fig. 1, 2);(3)halsSk61d hos “ smalnande fram翫 (Fig.3),hos Sι `s′ vilken patraffats i POlen,Tyskland,Schweiz och ltalien.Dct ar inte uteslutet att dcn kan innas aven hos oss da den lever pa olika tё me m■ ). Tθ r― Er′ たι `J′ `r ο72ο κJs― arter(puk―