INSECUTOR INSCITI^ MENSTRUUS 95 



group on the narrow band of chitin representing the segment.^ 



Types, four males, No. 35254, U. S. Nat. Mus., no females 

 definitely associated : Mandingo, Canal Zone, Panama, Decem- 

 ber 22, 1921, bred from larvae found in a hole in a plum tree 

 (J. B. Shropshire) ; Miraflores, Canal Zone, Panama, Decem- 

 ber 15, 1921, bred from larvae found in a tree-hole (J. B. 

 Shropshire). The first culture contained three males and a 

 female, but the latter appears to belong to some other species 

 of Culex, probably Citlex mollis D. & K. ; the second culture 

 produced one male of this species and three specimens of 

 Haemagogus argyromeris D. & L. A female bred from a larva 

 found in a tree-hole, December 31, 1921, without exact locality, 

 apparently belongs here, but as no male is associated, it has not 

 been made a type. Some females, bred from larvae found in 

 containers at Miraflores and Balboa have been placed here, but 

 it is not certain that they belong to the species. They more 

 probably appertain to Culex nigripalpus Theo. 



Near corrigani D. & K. {chalcocorystes Mart.), readily dif- 

 ferentiated by the details of the hypopygium. The structure of 

 the clasper is as in conservator D. & K. {divisor D. & K.), 

 which also has no leaves on the outer division of the lobe of 

 side-piece. 



These species with reduced male palpi present an interesting 

 series. In restrict or D. & K. ( const ernator D. & K.), which 

 I placed in Micraedes (Ins. Itis. Mens., vi, 102, 1918), the male 

 palpi exceed the proboscis. Both divisions of the lobe of side- 

 piece are rod-like and short, the inner with the two filaments 

 nearly normal, but shortened, the outer with five filaments, one 

 of which is very strong and tusk-like. This is a continental 

 form, from Mexico and Panama. 



In (Tinolestes) latisquama Coq., a crab-hole species from the 

 continent^Costa Rica and Panama — the male palpi are about 

 half the length of the proboscis. The clasper is smooth and 

 very stout. The inner division of the lobe of side-piece is 

 short, columnar and stout, with the two filaments short and 

 thick, tooth-like with expanded tips ; the outer division is ap- 

 proximated to the inner, sessile, with one long, tapered very 



