Stiphrosoma humerale Roháček & Barber, 2005

Wang, Qian, Wang, Donghui & Shi, Li, 2021, A genus and three species of Anthomyzidae newly recorded from China (Diptera), Zoological Systematics 46 (2), pp. 163-175 : 172-173

Stiphrosoma humerale Roháček & Barber, 2005 ( Figs 25–28 )

Stiphrosoma humerale Roháček & Barber, 2005: 89 ; Roháček, 2006: 287; Roháček, 2009: 102.

Description. Head ( Figs 25, 27 ) mostly yellow except for dark brown frontal triangle, and most of occiput and mesonotum brown to dark brown except for whitish yellow humerus and yellow notopleuron, abdomen brown ( Figs 25, 27 ). Antennal 1st flagellomere with long white cilia on apex and arista shortly pectinate.Fore femora ( Figs 25, 27 ) with a ctenidial spine being markedly longer than maximum width of tibiae. Anepisternum with a brown transverse stripe on upper margin ( Figs 25, 27 ). Male genitalia ( Fig. 28 ): epandrium with 2 dorsomedial pairs of longer and thicker setae in posterior view, gonostylus short and markedly broad, particularly in apical third in lateral view ( Roháček, 2006: figs 608‒609); pregonite with numerous longer and thicker setae ( Roháček, 2006: fig. 610); filum of distiphallus curved apex with shape like a triangle ( Roháček, 2006: fig. 613). Female tergosternum 7 dorsally short and dark but dorsomedially divided ( Roháček, 2006: fig. 618); internal structures of genital chamber ( Roháček, 2006: figs 617, 619) complex and well sclerotized, with 3 pairs of partly fused sclerites; spermathecae ( Fig. 26 ) with spines transversely attached to surface denser ( Roháček, 2006: fig. 616).

Material examined. 1♂ ( IMAU), China, Inner Mongolia, Hulunbeir, Genhe City, Hanma National Nature Reserve , Niuer Lake , shrubs, 5.VII.2017, Shunde Li ; 1♀ ( IMAU), China, Inner Mongolia, Hulunbeir, Genhe City, Hanma National Nature Reserve , Jinamijima River , wetland, 28.VII.2016, Sample II, Li Shi .

Distribution. China (Inner Mongolia), Czech Republic, Latvia, North Korea, Russia, USA, Canada.

Remarks. The species is reported in China for the first time.

Figures

Figures 25–28. Stiphrosoma humerale Roháček & Barber, 2005. 25. Habitus of female, lateral view; 26. Spermathecae of female; 27. Habitus of male, lateral view; 28. Male genitalia, lateral view.