1907.] Wheeler, Ants from British Honduras. 275 



the gaster are larger and less numerous than . in septentrionalis and the 

 median black band is less distinct. 



The liitherto undescribed female of saussiirei differs from that of septen- 

 trionalis in the longer antennal scapes and postpetiole and the grosser 

 tubercles, especially on the gaster. The first segment of the latter has a 

 median and two lateral streaks of dark brown, and the ventral surface is 

 also infuscated. The mesonotum has a large, triangular anteromedian 

 and two lateral dark brown blotches and there is a similar blotch on the 

 clypeus, one on the vertex and another on the scutellura. The mngs are 

 smoky brown, somewhat paler than those of septentrionalis. 



In the hitherto undescribed male of saussurei the head is narrower 

 behind and with blunter spines than in septentrionalis; the antennae and 

 legs are more slender, the postpetiole longer and with a pronounced trans- 

 verse depression, and the tubercles on the petiole, postpetiole and gaster 

 are much more prominent. 



All the specimens received from Mr. Johnson were taken from the same 

 nest (Feb. 9). 



24. Myrmicocrypta dilacerata Forel. — Two males. 



25. Cyphomyrmex rimosus Spinola. — Numerous workers of the 

 t3^ical form of this variable species. 



D0LICHODERIN.E. 



26. Dolichoderus bispinosus Olivier. — Numerous workers from two 

 colonies, together with some Membracids which they were attending. 

 This common and mdely distributed neotropical species is cited by Forel 

 from the Rio Hondo, British Honduras. Like several other species of 

 the genus it constructs paper nests. 



27. Dolichoderus championi Forel. — Numerous workers and a single 

 dealated female. Forel has described all three phases of this insect from 

 Mexico, Costa Rica and Panama, and also a subspecies and variety from 

 Trinidad and Colombia. 



28. Tapinoma melanocephalum Fahr. — iNIany workers from a single 

 colony. This species appears to be widely distributed through the tropics 

 of both hemispheres. It is common in the West Indies (Jamaica, Porto 

 Rico, Bahamas) and has also been introduced into well-heated buildings 

 in New York. During the past winter I have seen it visiting the sugar 

 bowls on the tables of the Columbia University commons. 



29. Dorymyrmex pyramicus Roger. — Numerous workers of the typical 

 form of this species from two colonies. 



30. Azteca instabilis F. Smith. — Manv workers of all sizes and four- 



