INSECUTOR INSCITI^ MENSTRUUS " 



wardly and enlarged a little before tip, the terminal spine in- 

 serted before apex and widely appendiculate ; apical setje of 

 side-piece long, one of them flattened and leaf-like; lobe di- 

 vided widely, the outer portion slender, bearing a long hooked 

 filament and a broadly expanded leaf with a long stem; basal 

 portion stoutly arm-like, bearing a long hooked filament and 

 a rod at its summit ; an area of short tubercular setae at apex 

 of the basal emargination. Harpes comb-shaped, with seven 

 coarse teeth. Unci divided, the first plate triangular, second 

 horn-shaped; lateral sheathing plate very large, curved and 

 darkly colored. No basal appendages, the penultimate seg- 

 ment roundedly projecting ventrally and coarsely setose. 



Types, three males and three females. No. 31705, U. S. Nat. 

 Mus. ; Georgetown, British Guiana, March, 1910 (H. W. B. 

 Moore). 



This species belongs to the subgenus Melanoconion Theo- 

 bald, as defined by Dyar (Ins. Ins. Menstr., vi, 92, 1918). In 

 transmitting the material. Mr. Moore remarks: "This might 

 be Mr. Theobald's Gnophodeomyia inornata, but the type, or 

 rather our type specimen, named by him for us, is so mouldy 

 now that nothing much can be made out from it. The larva 

 is abundant all the year round in sweet water canals along with 

 that of Aedeomyia squamipennis." In another letter he adds: 

 "The adult, which is a blood-sucker, sometimes visits houses 

 at night." 



Gnophodeomyia inornata Theobald (Journ. Econ. Biol., i, 

 21, 1905) was described from three females, one taken in a 

 house, two bred from larvse found in a hollow tree-trunk. 

 There is no certainty that the three are conspecific, and it 

 seems probable that they are not. The type would seem to be 

 the specimen caught in the house and we would restrict it to 

 this. It may be. and probably is, the same as this species ; but 

 that can not be said without a very critical examination. Theo- 

 bald does not mention the white scales on the sides of the head 

 which are present in our species. The specific name inornata 

 becomes invalid, as there already exists a Ciile.v inornatus 



