26 Journal New York Entomological Society, t^'*^''- >^>^vi. 



Described from four specimens. 



This species is closely related to C. abstiiiciis Forel, originally de- 

 scribed from Panama (Biol. Centr. Amer. FormicidEe, 1899-1900, p. 

 85) and agrees well, except in the darker color, with the original 

 description. When compared, however, with a specimen in my col- 

 lection from Cayenne labelled " abstiucns " by Forel, I note consid- 

 erable differences. In the latter specimen the antennal scapes and 

 joints 3-8 of the funiculus are decidedly shorter than in ornatipilis, 

 the humeri are much rounder, there are no denticles at the sides of 

 the mesonotum and base of the epinotum, the epinotal spines are 

 smoother and more acute, the hairs on the body are not black at the 

 tip and are less coarse and not clavate, the hairs on the legs and scapes 

 are shorter and much less abundant and the color is darker. Addi- 

 tional material may show that oniatipilis is to be regarded as a sub- 

 species of abstiucns. Forel has described a subsp. siitiiralis from 

 Venezuela, with the promesonotal suture very distinct (Mem. Soc. 

 Ent. Belg., 19, 1912, p. 216). 



20. Cryptocerus spinosus :\Iayr. A single worker. 



21. Cryptocerus minutus Fabr. Four workers. 



22. Cryptocerus pusillus Klug. A single worker. 

 2^^. Cryptocerus maculatus Smith. A single worker. 



24. Cryptocerus (Cephalotes) atratus (Linn.). Nine workers. 



25. Cryptocerus (Cephalotes) oculatus Spinola. A single worker. 



Subfamily Dolichoderin.e. 



26. Dolichoderus atellaboides (Fabr.). Three workers and a winged 



female. 

 *2/. Dolichoderus imbecillis Mann. Two workers. 

 2S. Dolichoderus (Hypoclinea) bidens (Linn.). Five workers. 

 *29. Azteca trigona Emery. A major and a minor worker. 

 *30. Iridomyrmex iniquus (Mayr. ) var. nigellus Emery. A worker 

 and a male. 



Subfamily Camponotin.e. 



31. Gigantiops destructor (Fabr.). Five workers. 



^2. Camponotus (Myrmothrix) abdominalis (Fabr.) subsp. ustulatus 



Forel var. mediopallidus Forel. A single media and four minor 



workers. 



