Calliphora

Rognes, Terry Whitworth With An Appendix By Knut & Whitworth, Terry, 2012, Identification of Neotropical blow flies of the genus Calliphora Robineau- Desvoidy (Diptera: Calliphoridae) with the description of a new species, Zootaxa 3209, pp. 1-27 : 5

Key to the species of Neotropical Calliphora

1. Basicosta yellow to orange............................................................................. 2

- Basicosta brown to black................................................................................ 3

2. Genal dilation with black vestiture; katepisternal formula 1+1 (Whitworth, 2010, fig. 9); base of wing dark, infuscated along costa to apex of costal cell, angling back to anterior edge of basal medial and posterior cubital cells (as in Fig. 7 ); male frons broad, averaging 0.29 (0.028–0.30/5) of head width; male and female genitalia unique (Whitworth 2010, figs. 10, 11, 18), see detailed discussion and illustrations in Whitworth (2010); known only from West Indies in Cuba, Dominican Republic, and Jamaica.................................................................................... C. maestrica

- Genal dilation with reddish vestiture on front half or more; katepisternal formula 2+1 (Whitworth, 2010, fig. 8); base of wing hyaline; male frons much narrower, averaging 0.075 (0.07–0.08)/4 of head width; characters illustrated in Rognes (1991, figs. 132, 139–148) and Mello (1962, figs. 1–10); known in the Neotropical Region from Argentina, Chile, Cuba, Falklands, Mexico, Panama, Uruguay........................................................................... C. vicina

3. Three postsutural intra-alar setae; lower calypter, rim and setal fringe whitish, especially near distal end ( Fig. 3 ) (also in C. lopesi ); parafacial uniformly dark brown or black; male frons narrow, less than half the width of the parafacial at widest, 0.031 (0.030–0.031)/5 head width; surstylus broad in lateral view ( Fig. 14 ), from rear, cerci often distinctly y-shaped ( Fig. 15 , yshape not distinct in photo); female, width of parafacial about equal to width of first flagellomere, 1.3 (1.1–1.5/5); known only from Costa Rica, El Salvador and Mexico ( Fig. 1 )..................................................... C. triseta

- Two postsutural intra-alar setae; if three, then the first very tiny (sometimes in C. irazuana ); lower calypter rim and fringe brown to reddish brown (except white in C. lopesi ); lower half of parafacial orange color; male frons width variable; surstylus narrower in lateral view, from rear, parallel or V-shaped; female, parafacial 1.5– 2x width of first flagellomere (except in C. irazuana ); ranges do not overlap except in C. irazuana ......................................................... 4

4. Rim of lower calypter pale with whitish setae; genal groove red (also often red in C. irazuana , but ranges do not overlap); supravibrissal setae on facial ridge weaker, ascending from the vibrissa about halfway to antennal base ( Fig. 5 ); male frons broad, about 1.6x width of parafacial, 0.066 (0.06–0.07/5) of head width; male surstylus slender in lateral view, cerci shorter than surstyli ( Figs. 10, 11 ); female, T5 with no incision; known only from Brazil and Uruguay ( Fig. 2 )............ C. lopesi

- Rim and fringe of lower calypter usually darker, reddish, brown or black (as in Fig. 4 ); genal groove usually dark brown to black; setae on facial ridge stronger, usually ascending up from the vibrissa two-thirds or more toward antennal base ( Fig. 6 ); other characters variable................................................................................ 5

5. Known only from Central America; genal groove usually reddish like lower parafacial; anterior half of gena often reddishbrown; setae on occiput yellowish; sometimes a third tiny postsutural intra-alar seta (usually much smaller than in C. triseta ); male frons much narrower than width of first flagellomere, 0.034 (0.03–0.04/5) of head width; width of parafacial about equal to width of first flagellomere; surstylus slender in lateral view; cerci narrow in posterior view, about as long as surstylus ( Figs. 8, 9 ); female parafacial 1.4x or less width of first flagellomere; known from higher elevations in Costa Rica, El Salvador, Guatemala and Mexico ( Fig. 1 ) and is likely present in other Central American countries....................... C. irazuana

- Known only from South America; genal groove usually dark brown to black, concolorous with gena color; gena all black to dark brown; white silky setae on occiput, extending into rear of postgena area; only two postsutural intra-alar setae; male frons wider than first flagellomere, 0.102 (0.09–0.12/5) of head width; width of parafacial about 1.9x width of first flagellomere; surstylus broader in lateral view; cerci broad in posterior view, shorter than surstylus (see Figs. 12, 13 ); female parafacial broad, about twice the width of first flagellomere, 2.3 (2.1–2.5/5); at high elevations in Argentina, Bolivia, Colombia, Ecuador, Peru, Venezuela ( Fig. 2 )..................................................................... C. nigribasis

Figures

FIGURE 1. Map of Central America and southern Mexico showing the localities of examined specimens of Calliphora irazuana, C. triseta and C. vicina. Map does not show localities in northern Mexico.

FIGURE 2. Map of South America showing the localities of examined specimens of Calliphora lopesi, C. nigribasis and C. vicina.

FIGURES 3 – 7. Calliphora character states. 3. C. triseta, pale whitish setae on upper surface, rim and fringe of lower calypter. 4. C. irazuana, brown setae on upper surface, rim and fringe of lower calypter. 5. C. lopesi male, setae extend about halfway up facial ridge. 6. C. triseta male, setae extend about 80 % up facial ridge. 7. C. nigribasis, base of wing infuscated.

FIGURES 12 – 15. Left lateral and posterior views of male genitalia of Calliphora spp. epandrium, cerci and surstyli. 12, 13. C. nigribasis. 14, 15. C. triseta.

FIGURES 8 – 11. Left lateral and posterior views of male genitalia of Calliphora spp. epandrium, cerci and surstyli. 8, 9. C. irazuana. 10, 11. C. lopesi.