BITING MIDGES — WIRTH AND BLANTON 287 



Abdomen. — Blackish, cerci paler. Spermathecae two, subspherical 

 to pyriform, unequal, measuring 0.063 by 0.049 mm. and 0.052 by 

 0.041 mm. 



Male genitalia: Ninth tergun with small apicolateral processes; 

 basistyle with well-developed spinose setae on mesal margin. Aedeagus 

 A-shaped, with slender, spherical tip. Parameres with main bodies 

 connected at bases by a short loop, the tips bare. 



Distribution: Puerto Rico; Brazil; Colombia; Florida; French 

 Guiana; Honduras; Jamaica; Mexico; Nicaragua; Panama; Surinam; 

 Trindidad ; Venezuela. 



Panama records: 



Canal Zone: Balboa, Fort Davis, Fort Gulick, Loraa Boracho, Mindi Dairy, 



Mojinga Swamp. 

 CniRiQuf Province: Gualaca, Volcdn. 

 Cocl£ Province: Aguadulce, El Crislo, El Valle, Natd, Puerto Farall6n, Puerto 



Obaldia, Rfo Hato. 

 Dari^n Province: El Real, Jaqu6, Punta Patino. 

 Herrere Province: Chitr6. 

 Los Santos Province: Guarare, Las Tablas. 

 Panama Province: Arraijdn, Cerro Campana, La JoUa, Pacora, San Carlos, 



Isla Taboga, Tocumen. 



We have sunk inamollae and painteri in the synonymy of insignis 

 after a comparison of the holo types of these two species, kindly loaned 

 to us by Dr. Fox, with syntypes of insignis loaned to us by Dr. Costa 

 Lima (Wirth and Blanton, 1956). We have designated a male syntype 

 of insignis from the Instituto Oswaldo Cruz collection as the lectotype 

 of insignis. 



The females of insignis are quite easily recognized by the wing 

 markings, only one pale spot in cell Mj past the pale spot straddling 

 vein M2, r-m crossvein is dark and vein R4+5 is dark extending well into 

 the pale area over the second radial cell and usually dark to the point 

 where it bends forward abruptly toward the costa. 



In Panama, insignis reaches its greatest abundance in muddy 

 cowpastures as at Aguadulce and Tocumen, where it usually outnum- 

 bers all other species of Culicoides. 



7. Culicoides trinidadensis Hoffman 



Figure 10 



Culicoides trinidadensis Hoffman, 1925, Amer. Journ. Hyg., vol. 5, p. 286 (female; 

 Trinidad; fig. wing).— Fox, 1946, Ann. Ent. Soc. Amer., vol. 39, p. 256 

 (Stubal's Bay, Trinidad); 1948, Proc. Biol. Soc. Washington, vol. 61, p. 23 

 (fig. female palpus). — Wirth and Blanton, 1956, Proc. Ent. Soc. Washington, 

 vol. 58, p. 324 (synonyms, oliveri, diminutus) . 



Culicoides oliveri Fox and Hoffman, 1944, Puerto Rico Journ. Pub. Health Trop. 

 Med., vol. 20, p. 108 (Haiti; male, female; fig. male aedeagus, parameres). — 

 Fox, 1948, Proc. Biol. Soc. Washington, vol. 61, p. 23 (discussion). 



