Xylota atricoloris Mutin, 1987
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publication ID |
https://doi.org/ 10.11646/zootaxa.4661.3.3 |
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publication LSID |
lsid:zoobank.org:pub:28EFDB26-4C37-4DA9-ABBB-122083EE396B |
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persistent identifier |
https://treatment.plazi.org/id/5A219B24-3443-4731-FCED-FB2D9F3513D1 |
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treatment provided by |
Plazi |
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scientific name |
Xylota atricoloris Mutin |
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Xylota atricoloris Mutin View in CoL
(Korean name: geom-eun-heo-ri-kkot-deung-e)
Figs 1E View FIGURE 1 , 2E View FIGURE 2 , 3 View FIGURE 3 K–O, 9A–D, 13C
Species new to Korea
Xylota atricoloris Mutin, 1988a: 102, 1988b: 119 View in CoL (type locality: Russia, Khabarovskii, Krai, Komsomolskii Zapovednik, the mouth of Gorin River; holotype ♂, ZISP); Mutin & Barkalov, 1999: 494 (in Russian Far East key).
Diagnosis. This black species can be distinguished from the other Korean Xylota species by the combination of the following characters: 1) almost parallel-sided or slightly ovated abdomen ( Fig. 2E View FIGURE 2 ); 2) brown pro- and mesotarsomeres 1–3 in dorsal view; 3) dark brown to black metatarsus ( Fig. 3L View FIGURE 3 ); and 4) metatrochanter ventrally with short calcar (subequal to basal width) ( Fig. 3L View FIGURE 3 ).
Description of Korean material. MALE. Body length 10.5–11.6mm; wing length 8.0–9.0mm. Head black; face with dense yellowish white pollinosity; posterior 1/5 of frons anterior to eye contiguity with yellowish white pollinosity ( Fig. 1E View FIGURE 1 ); area anterior to ocellar triangle (vertical triangle anterior to ocellar triangle) bare but posterior area covered with yellow pile ( Fig. 1E View FIGURE 1 ). Thorax entirely black ( Fig. 3K View FIGURE 3 ); scutum subshiny with short appressed yellow pile, but posterior half sparsely with longer erect yellow pile mixed with short pile; anterior anepisternum covered with white pollinosity; posterior anepisternum with yellowish white pile and dense white pollinosity; anepimeron covered with yellow pile; katepisternum moderately covered with white pollinosity, dorsal posterior area with white pile; notopleuron with yellow pile; scutal area anterior to wing base with black and dark brown pile; postalar callus mainly with long yellow pile but anterior portion with few black pile; metasternum bare with white pollinosity. Wing hyaline with pale brownish tinge except for brown pterostigma ( Fig. 3M View FIGURE 3 ); halter with basal half of stem dark brown but posterior stem and knob yellow. Legs: femora dark brown to black; pro- and mesotibiae yellow with small dorso-basal yellowish brown area; pro- and mesotarsomeres 1–3 ventrally yellow but dorsally brown; tarsomeres 4 and 5 black; metatrochanter ventrally with short calcar (subequal to basal width) ( Fig. 3L View FIGURE 3 ); apico-ventral 1/3 of metafemur with two carinae covered with spinose setae, remaining ventral area with irregularly scattered spinose setae mixed with smaller setae, antero-dorsally and postero-ventrally with long white pile, apico- dorsal 1/3 area with black setulae; metatibia dark brown with basal 1/5 yellow ( Fig. 3L View FIGURE 3 ); metatarsomeres 1–3 dark brown, tarsomeres 4 and 5 black ( Fig. 3L View FIGURE 3 ). Abdomen about 3x longer than wide ( Figs 2E View FIGURE 2 , 3K View FIGURE 3 ), terga 2 and 3 almost parallel-sided or slightly ovated, pair of lateral facing triangular areas densely covered with white erect pile (other areas of terga with short appressed black and pale yellow pile mixed) ( Fig. 2E View FIGURE 2 ). Male genitalia ( Figs 9 View FIGURE 9 A–D, 13C): surstylus with dorsal lobe twice as long as ventral lobe, long finger shaped and slightly bent ventrally in lateral view, densly covered with spinose setulae ( Fig. 9 View FIGURE 9 A–C); ventral lobe of surstylus widely bulged, apically with setulae ( Fig. 9 View FIGURE 9 A–C); cercus cordated in profile with long pale pile ( Fig. 9 View FIGURE 9 A–C); lingula indistinct ( Fig. 13C View FIGURE 13 ); fenestra round in outline ( Fig. 9B, C View FIGURE 9 ); spur of superior lobe reduced ( Fig. 13C View FIGURE 13 ); superior lobe asymmetrical ( Fig. 9 View FIGURE 9 A–C); right lateral arm of theca ( Fig. 9C View FIGURE 9 ) with baso-dorsal thorny process and apico-dorsal 4 toothed process, with 3 pale pile in between these two processes; left lateral arm of theca ( Fig. 9B View FIGURE 9 ) similar but apico-dorsal process much narrow; aedeagus with ejaculatory hood medially with furrow in postero-ventral view, dorsally round ( Fig. 9D View FIGURE 9 ); ejaculatory process short ( Fig. 9D View FIGURE 9 ); ejaculatory apodeme apically enlarged in bowl shape.
FEMALE. Not examined. According to the original description, female frons anteriorly bare and posteriorly with short white pile except for light triangular pollinosity macula close to eyes (Mutin, 1988).
Material examined. SOUTH KOREA: Gangwon-do : 1♂, Wonju-si , Heungeop-myeon , Maeji-ri, Yonsei Univ. Wonju Campus, 24.IV.2004, H.W. Byun ; 1♂, ditto, 28.IV.2004, H.W. Byun, O.Y. Lim, H.S. Lee ; 2♂, ditto, 24.V.2009, D.J. Cha, H.S. Lee ; 1♂, ditto, 26.V.2009, S.W. Suk, J.M. Jung .
Distribution. Korea (new record), Russian Far East.
Remarks. The Korean specimens agree with the original description as well as the associated illustration of right lateral view of the male genitalia by Mutin (1988).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
