Pseudoscelolabes Collin

Barros, Luana Machado, Soares, Matheus Mickael Mota, Freitas-Silva, Rafael Augusto Pinheiro De, Sinclair, Bradley J. & Ale-Rocha, Rosaly, 2022, Revision of the New Zealand endemic genus Pseudoscelolabes Collin (Diptera: Hybotidae: Ocydromiinae), Zootaxa 5150 (4), pp. 516-528 : 517

Key to species of Pseudoscelolabes Collin

1 Scutum usually with pair of narrow stripes, widening at prescutellar disc ( Fig. 2B ); sometimes stripes absent or partially reduced or faint beneath cuticle, or male scutum dark brown with pale lateral margins ( Fig. 2A ); abdominal tergites usually pale brown with narrow darker anterior margin ( Figs 1A, B ); surstyli with basal width nearly as long as length in posterior view ( Fig. 3E ); eyes of females separated by width of anterior ocellus ( Fig. 1D ).......... Pseudoscelolabes fulvescens ( Miller, 1923)

- Scutum with broad, brown presutural supra-alar and postsutural supra-alar spots, separated or narrowly fused ( Figs 5C–F ); abdominal tergites yellow, with anterior half broadly brown with medial extension posteriorly ( Figs 5C–F ); surstyli with basal width shorter than length in posterior view ( Fig. 6D ); eyes of females closely approximated, similar to males, to slightly narrower than width of anterior ocellus ( Fig. 1D )..................... Pseudoscelolabes lesagei Sinclair & Barros sp. nov.

Figures

FIGURE 1. Pseudoscelolabes fulvescens (Miller, 1923) A–B. Lateral habitus A. Male; B. Female; C–D. Anterior view of frons. C. male; D. female; E. Antenna of male in lateral view; F. Hind femur of male in anterior view.

FIGURE 2. Pseudoscelolabes fulvescens (Miller, 1923) A–B: scutum in dorsal view A. Male; B. Female; C. Wing of male. Abbreviations: bm = basal medial cell; br = basal radial cell; cua= anterior cubital cell; CuA = anterior branch of cubital vein; CuA+CuP = anterior branch of cubital vein + posterior branch of cubital vein; dm = discal medial cell; M 1 = first branch of media; M 4 = fourth branch of media; R 1 = anterior branch of radius; R 2+3 = second branch of radius; R = third branch of radius; 4+5 Rs = radial sector.

FIGURE 3. Pseudoscelolabes fulvescens (Miller, 1923) male terminalia. A. Dorsal view; B. Ventral view; C. Right lateral view; D. Left lateral view; E. Surstyli in posterior view. F. Hypandrium in left lateral view; G. Hypoproct and subepandrial sclerite in dorsal view. Abbreviations: bac scl = bacilliform sclerite; cerc = cercus; epand = epandrium; hypd = hypandrium; hyprct = hypoproct; ph = phallus; sbepand scl = subepandrial sclerite; sur = surstylus.

FIGURE 5. Pseudoscelolabes lesagei Sinclair & Barros sp. nov. A–B. Lateral habitus A. Male holotype; B. Female paratype; C. Habitus of male holotype in dorsal view; D–F. Habitus of female in dorsal view.

FIGURE 6. Pseudoscelolabes lesagei Sinclair & Barros sp. nov. terminalia of male holotype. A. Dorsal view; B. Ventral view; C. Left lateral view; D. Surstyli in posterior view.