590 A Monograph of Culicidae. 



Length. — 6 mm. 



Habitat. — Brazil (Dr. Lutz). 



Observations. — These specimens were given me named by 

 Dr. Lutz. I am not aware if he has described them. It comes 

 very near H. pallidiventer, but the abdomen is of a brilliant 

 metallic purple and violet, the lateral spots are more golden, and 

 the $ palpi are longer than in that species. 



Genus TRICH0PR0S0P0N. Theobald (1901). 



Joblotia. Blanchard (1901). 



Mono. Culicid. II., p. 283 (1901), Theobald; C. r. Soc. Biol. 53, p. 1843 

 (1901), Blanchard; Gen. Ins. Fam. Culicid., p. 33 (1905), Theobald; 

 Tec. Se. 11, U.S. Dept. Agri. Div. Ent., p. 27 (1906), Coquillett. 



The hairy clypeus is a very marked character, and will at 

 once separate this genus. The densely appressed small flat scales 

 on each side of the front of the mesonotum, and the complete 

 armour of similar scales on the pleurae are also very characteristic, 

 but occur in other Culicids, such as in the closely allied genus 

 Hyloconops of Lutz. 



Blanchard abolished the name Trichoprosopon because Macquart 

 used the name Trichoprosopus in 1843. Owing to the different 

 termination the name has been retained by Coquillett, Lutz, Felt 

 and others. 



Trichoprosopon compressum. n. sp. Lutz. 



Head silvery white in front, dark brown behind ; thorax 

 deep brown, ochreous in front and at the sides j pleurae pale 

 with silvery scales ; abdomen deep metallic green with creamy 

 apical lateral spots and creamy venter. Legs deep brown with 

 purple reflections, the last two tarsals of hind legs pure white, in 

 the mid legs the mid three tarsals are white. 



$ . Head clothed with flat scales silvery white to pale blue 

 in front, dark brown behind with a row of deep brown upright 

 forked scales along the nape divided in the middle, two long 

 dark bristles projecting forwards between the eyes ; antennae 

 plumose, brown ; palpi thin, deep brown, acuminate, no plume 

 hairs, the apical segment considerably shorter than the penulti- 



