Lispe caesia

Zhang, Dong, Ge, Ying-Qiang, Li, Xin-Yu, Liu, Xian-Hui, Zhang, Ming & Wang, Rong-Rong, 2016, Review of the Lispe caesia - group (Diptera: Muscidae) from Palaearctic and adjacent regions, with redescriptions and one new synonymy, Zootaxa 4098 (1), pp. 43-72 : 44-47

Lispe caesia -group

Lispe caesia -group Hennig, 1960: 411; Xue & Zhang, 2005: 119; Zhang et al., 2005: 356.

Diagnosis. Frontal triangle distinctly broad, with dense shinning pollinosity, lateral margin projecting; frontal vitta narrow on both sides; vibrissa of male generally weak (except to L. flavicornis and L. halophora ) or even absent (in males of L. lanceoseta and L. leucocephala ); fore tibia with 1 median seta; fore and mid femora with stout ventral spines ( Fig. 3 ); hind tibia generally with 1 av, without pd.

Male: First hind tarsomere swollen and setulose ( Fig. 1 ), with sword-shaped microsetae ( Fig. 30 ); abdominal sternite 5 with close-set short setae on median lobe ( Figs. 6 A; 15A, B; 19A; 28A); surstyli fused with lower margin of epandrium; bacilliform sclerite usually present; cerci partly fused into a median plate ( Figs. 6 B, C; 15C, D; 19B, C; 21A, B; 28B, C); phallic tube with distinctive projection ( Fig. 2 ).

Female: Abdominal sternite 6 and tergite 7 divided medially; abdominal sternite 7 fused with tergite 7 into a median lobe in some species (in L. caesia caesia and L. caesia microchaeta ); sternite 8 mostly absent (except to L. aquamarina and L. flavicornis ); epiproct concave on posterior margin ( Figs. 4 A, B, G, H).

Distribution. Ethiopian (ET), Oriental (OR) and Palaearctic (PA) regions.

Included species (and subspecies). L. aquamarina Shinonaga & Kano, 1983 (PA); L. caesia Meigen, 1826 (PA) (with two subspecies, L. caesia caesia Meigen, 1826 and L. caesia microchaeta Séguy, 1940 ); L. candicans Kowarz, 1892 (PA); L. flavicornis Stein, 1909 (OR); L. halophora Becker, 1903 (PA); L. hirsutipes Mou in Fan, 1992 (PA); L. lanceoseta Wang & Fan in Wang et al., 1981 (PA); L. leucocephala Loew, 1856 (ET and PA); L. palawanensis Shinonaga & Kano, 1989 (OR); and L. patellitarsis Becker, 1914 (OR and PA).

Figures

FIGURE 1. Swollen and setulose first hind tarsomeres of males from Lispe caesia - group. A, L. aquamarina Shinonaga & Kano, right leg, posteroventral view, from Liaoning, China. B, L. caesia caesia Meigen, right leg, ventral view, from France. C, L. caesia microchaeta Séguy, left leg, posterolateral view, from Xinjiang, China. D, L. candicans Kowarz, left and right legs, posterior view, from France. E, L. flavicornis Stein, right leg, anteroventral view, from Guangdong, China. F, L. halophora Becker, left leg, posteroventral view, from Egypt. G, L. lanceoseta Mou, right leg, anteroventral view, from Shanxi, China. H, L. leucocephala Loew, right leg, ventral view, from Egypt. I, L. palawanensis Shinonaga & Kano, left and right legs, lateral view, from Phillipines. J, L. patellitarsis Bekcer, left leg, posteroventral view, from Zhanjiang, China. Scale bars: A – J = 0.50 mm.

FIGURE 2. Phallus of males from Lispe caesia - group, lateral view. A, L. aquamarina Shinonaga & Kano, from Liaoning, China. B, L. caesia microchaeta Séguy, from Xinjiang, China. C, L. flavicornis Stein, from Guangdong, China. D, L. patellitarsis Becker, from Liaoning, China. Scale bars: A – D = 0.25 mm. Abbreviations: bp = basiphallus, disph = distiphallus, ep = epiphallus, ph pro = phallic projection, pt = phallic tube. Color coding: phallic projection dyed in light cyan.

FIGURE 3. Stout ventral spines (arrows) on mid femur of females from Lispe caesia - group, anterior view. A, L. aquamarina Shinonaga & Kano. B, L. caesia caesia Meigen. C, L. caesia microchaeta Séguy. D, L. candicans Kowarz. E, L. flavicornis Stein. Scale bars: A – E = 1.00 mm.

FIGURE 4 (to be continued). Female terminalia of species from Lispe caesia - group. Left column, L. aquamarina Shinonaga & Kano. Right column, L. caesia caesia Meigen. A and B dorsal view, C and D lateral view, E and F ventral view. Scale bars: A – F = 0.50 mm. Abbreviations: cer = cerci, ep = epiproct, hyp = hypoproct, ml = median lobe, ster = sternite, ter = tergite.

FIGURE 6. Lispe aquamarina Shinonaga & Kano, 1983. Male, adapted from Xue & Zhang, 2005. A, sternite 5, dorsal view. B, epandrium, surstyli and cerci, lateral view. C, epandrium, surstyli and cerci, dorsal view. Abbreviations: bac slc = bacilliform sclerite, sur = surstyli.

FIGURE 30. Scanning electron microscope images of male swollen first hind tarsomeres from Lispe caesia - group. A, L. aquamarina Shinonaga & Kano, anteroventral view. B, L. caesia microchaeta Séguy, anteroventral view. C, L. flavicornis Stein, postroventral view. D, dense sword-shaped microsetae on the male swollen first hind tarsomere of L. flavicornis Stein. E, nanogrooves on the microsetae of L. flavicornis Stein. Scale bars:: A – C = 200 µm, D = 15 µm, E = 5 µm. Abbreviations: tar 1 – 5 = the first to fifth tarsomere, ms = microsetae, ng = nanogroove.