Mesembrinella anomala, Guimar

Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 138

Key to species of the M. anomala species-group

[Males only, adapted from Wolff et al. (2014).]

1 T5 about twice as long as T4 ( Fig. 496 ); fore femur brown; ac usually 0:1, rarely 0:0; epandrium with an anteroventral extension ( Fig. 99 ); epiphallus long, slender and sharply curved backward ( Fig. 189 ); [known from Venezuela; Bonatto (2001) also listed it from Ecuador; Marinho et al. (2017) also listed it from Bolivia]...................................... M. anomala

- T5 about 1.5x as long T4; fore femur orange with dark apices dorsally; ac 0:0; epandrium without an anteroventral extension ( Wolff et al. 2014: fig. 22); epiphallus short, with only a slight curve ( Wolff et al. 2014: fig. 20); [known only from Colombia]......................................................................................... M. andina

Figures

FIGURES 489–497. Diagnostic characters of Mesembrinella spp. 489. Dorsal view of stem vein of wing of M. bellardiana Aldrich showing stem vein setose. 490. Detail of wing of M. batesi Aldrich in ventral view, showing setose condition of subcostal sclerite. 491. Epandrium of M. mexicana sp. nov. in posterior view, showing broad dorsal division found in M. spicata group. 492. Detail of abdomen of male M. epandrioaurantia sp. nov., showing orange color of rear segments. 493. Detail of dorsal habitus of M. socors (Walker), showing triangle of bluish cuticle on hind margin T3. 494. Wing of M. pictipennis Aldrich, showing pattern of infuscation. 495. Posterodorsal habitus of male M. townsendi Guimar„es, showing wing pattern and stripes on thorax. 496. Detail of male abdomen of M. anomala (Guimar„es), showing relative lengths of T4 and T5. 497. Same as previous, showing modification of T6, STS7+8 and epandrium.

FIGURES 99–102. Left lateral and posterior views of epandrium, cerci and surstyli of Mesembrinellidae. 99–100. Mesembrinella anomala (Guimar„es). 101–102. Souzalopesiella facialis (Aldrich).

FIGURES 183–192. Left lateral and dorsal views of phallus of Mesembrinella. 183–184. M. townsendi Guimar„es. 185–186. M. umbrosa Aldrich. 187–188. M. velasquezae sp. nov. 189–190. M. anomala (Guimar„es). 191–192. Souzalopesiella facialis (Aldrich).