Sarcophaga (Cornexcisia), Fan & Kano, 2000

Wang, Chao, Gao, Yunyun, Pape, Thomas & Zhang, Dong, 2019, Redefinition of Cornexcisia Fan & Kano, 2000 (Diptera: Sarcophagidae), with the first description of the female of Sarcophaga kurahashii (Shinonaga & Tumrasvin, 1979), Zootaxa 4668 (3), pp. 410-420 : 416-418

Key to species of Cornexcisia

1. Male [unknown for S. (C.) longicornuta ]: phallus with juxtal arm arising proximo-ventrally, apically divided and partly covered in cuticular pile; lateral stylus bifurcated from base, with each branch elongate, gently curved and slightly expanded apically ( Figs 1F , 3 ). Female [unknown for S. (C.) cygnocerca and S. (C.) suthep ]: postpedicel about 6 times as long as pedicel ( Fig. 2B ).......................................................................... Sarcophaga (Cornexcisia) 2

- Male: phallus different. Female postpedicel at most 4 times as long as pedicel............. Sarcophaga (other subgenera)

2. Females [unknown for S. (C.) cygnocerca and S. (C.) suthep ].................................................. 3

- Males [unknown for S. (C.) longicornuta ].................................................................. 4

3. Postpedicel unmodified below insertion of arista...................................... Sarcophaga (C.) kurahashii

-. Postpedicel with a trough-shaped antero-proximal depression just below aristal insertion ( Fan & Kano 2000: fig. 2)................................................................................... Sarcophaga (C.) longicornuta

4. Cercus long, not particularly broad in lateral view, bent anteriorly almost from middle and with tip gradually tapering ( Fig. 1F ); cerci diverging in posterior view; vesica membranous with a simple, tapering tip............. Sarcophaga (C.) kurahashii

- Cercus short, broad in lateral view, almost straight with tip gradually or abruptly tapering; cerci not particularly diverging in posterior view; vesica semi-sclerotized with a complex tip..................................................... 5

5. Cercus abruptly tapering in dorsal view, subapically with a dorsal knob, reminiscent of the beak of a mute swan; vesica with a distal knob; juxta undulating and without a sharp dorso-median crest ( Xue et al. 2011: fig. 4; Fig. 3C )................................................................................................ Sarcophaga (C.) cygnocerca

- Cercus gradually tapering in dorsal view, without a dorsal knob; vesica with a median subapical thorn-like structure; juxta with a sharp dorso-median crest (Bänziger & Pape 2003: figs 7–10; Fig. 3B )................................ S. (C.) suthep

Figures

FIGURE 1. Male of Sarcophaga (Cornexcisia) kurahashii (Shinonaga & Tumrasvin, 1979) (Yunnan, China; MBFU). A. Habitus, lateral view. B. Head, anterior view. C. Head, anterolateral view. D. Head, lateral view. E. Detail of head, showing antenna in anterolateral view. F. Terminalia, lateral view. Scale bars: A = 2 mm, B–F = 1 mm.

FIGURE 2. Female of Sarcophaga (Cornexcisia) kurahashii (Shinonaga & Tumrasvin, 1979) (Yunnan, China; MBFU). A. Habitus, lateral view. B. Detail of head, showing antenna in anterolateral view. C. Head, anterior view. D. Head, lateral view. E. Head, anterolateral view. Scale bars: 1 mm.

FIGURE 3. Phallus, lateral view. A. Sarcophaga (Cornexcisia) kurahashii (Shinonaga & Tumrasvin, 1979) (Yunnan, China; MBFU). B. Sarcophaga (C.) suthep Pape & Bänziger, 2003 (adapted from Pape & Bänziger 2003: fig. 7) C. Sarcophaga (C.) cygnocerca (Xue, Verves & Du, 2011) (adapted from Xue et al. 2011: fig. 4b; mirrored to facilitate comparisons). D. Simplified outline of phallus of Sarcophaga (C.) kurahashii (Shinonaga & Tumrasvin, 1979) (based on Fig. 3A). Abbreviations: H = harpes, J = juxta, JE = juxta extension, LS = lateral stylus, V = vesica.