Nothybus biguttatus Wulp, 1896

Zhou, Jiale, Marshall, Stephen A. & Yang, Ding, 2021, Synopsis of Nothybidae (Diptera: Brachycera) from China, with redescription of Nothybus absens Lonsdale & Marshall, Zootaxa 4926 (2), pp. 201-223 : 210

publication ID	https://doi.org/10.11646/zootaxa.4926.2.3
publication LSID	lsid:zoobank.org:pub:AEAA4653-8556-4332-983C-480AFBD8C084
DOI	https://doi.org/10.5281/zenodo.4506047
persistent identifier	https://treatment.plazi.org/id/03AF8783-FF89-2B45-FF34-F9FE3B78FCC0
treatment provided by	Plazi (2021-02-05 06:48:29, last updated 2021-02-05 06:56:55)
scientific name	Nothybus biguttatus Wulp, 1896
status

Treatment

( Figs 29–37 View FIGURE 29 View FIGURES 30–37 )

Nothybus biguttatus Wulp, 1896: 112 ; Aczél, 1955: 10; Frey, 1958: 38; Steyskal, 1977: 30; Galinskaya & Shatalkin, 2015: 583; Lonsdale & Marshall, 2016: 16 View Cited Treatment . Syntypes (³♀): Indonesia, Java, ZMAN (lost).

Diagnosis. Frons ( Figs 30–32 View FIGURES 30–37 ) with two velvety black anterior patches. Mesonotum ( Fig. 33 View FIGURES 30–37 ) with regularly 4 rows of acrostichal setulae in mid-longitudinal stripe. Wing ( Fig. 34 View FIGURES 30–37 ) distal to level of dm-cu uniformly dark brown except for clear spots in cells r 2+3 and r 4+5 and a more diffuse patch in m 1; crossvein r-m surrounded by dark brown round spot; distal part of CuA 1 subtended by elongate-oval dark brown area extending to dm-cu. Fore basitarsomere ( Fig. 35 View FIGURES 30–37 ) dark brown with wide middle portion white. Abdominal tergites almost entirely black ( Figs 36, 37 View FIGURES 30–37 ).

Material examined. CHINA: 1♀, Tibet, Medog, Beibeng (N29.330938°, E95.339495°), 29 May. 2019, leg. Y. He & R GoogleMaps . Shen ( CAU).

Distribution. CHINA (Tibet) [new record], INDONESIA (Java, Sumatra), NEPAL, VIETNAM.

Remarks. The specimen examined here is similar to the northern Vietnamese variation mentioned by Galinskaya & Shatalkin (2015) and Lonsdale & Marshall (2016), but the mid femur has a dark medial ring and the hind femur lacks a dark medial band. These specimens are also darker than those from Java and Sumatra but they are identical in other external features.

References

Aczel, M. L. (1955) Nothybidae, a new family of Diptera. Treubia, 23, 1 - 18.

Frey, R. (1958) Studien uber ostasiatische Dipteren. VI. Nothybidae, Micropezidae, Opomyzidae. Notulae Entomologicae, 38, 37 - 50.

Galinskaya, T. V. & Shatalkin, A. I. (2015) New species of Nothybus Rondani, 1875 (Diptera: Nothybidae) from Vietnam with a key to Vietnamese species of the genus. Zootaxa, 4012 (3), 581 - 592. https: // doi. org / 10.11646 / zootaxa. 4012.3.11

Lonsdale, O. & Marshall S. A. (2016) Revision of the family Nothybidae (Diptera: Schizophora). Zootaxa, 4098 (1), 1 - 42. https: // doi. org / 10.11646 / zootaxa. 4098.1.1

Steyskal, G. C. (1977) Family Nothybidae. In: Delfinado, M. C. & Hardy, D. E. (Eds.), A Catalog of the Diptera of the Oriental Region 3: Suborder Cyclorrhapha (Excluding Division Aschiza). University Press of Hawaii, Honolulu, pp. 30 - 31.

Wulp, F. M. van der (1896) Aanteekeningen betreffende Oost-Indische Diptera. Tijdschrift Voor Entomologie, 39, 95 - 114, pl. 2.

Figures

FIGURE 29. Nothybus biguttatus Wulp, 1896, habitus, female, lateral. Scale bar: 3.0 mm.

FIGURES 30–37. Nothybus biguttatus Wulp, 1896, female. 30 head, dorsal; 31 same, anterior; 32 same, lateral; 33 thorax, dorsal; 34 wing; 35 fore tarsi; 36 abdomen, dorsal; 37 same, lateral. Scale bars: 1.0 mm.