r54 



A. E. Verrill — The Bermuda Islands. 



Ichneumon-flies. {Ophion, etc.) 



Several undetermined species of ichneumons were obtained. Among- 

 them is a species of Ophion very much like our common large 

 species (0. macrurus). 



Cockroach Ichneumon. {Evania appendigaster = E. laevigata 

 Olivier; Packard, Guide, p. 194, fig. 173.) Figure 109. 



This very interesting species was recorded by Jones, 1876. We 

 obtained a specimen in April. It lays its eggs in the egg-cases of a 

 cockroach (usually the American Cockroach), and its larva finds its 

 nourishment and shelter within the case. Thus this useful insect 

 destroys continually great numbers of cockroach eggs. Its body is 

 black; thorax glossy and punctate. It is found also in North Araer- 

 108a Ilia 



Figure 108a. — Blue Mason-wasp (C. coeruleum, x about li; phot, by A. H. V. 

 from a Bermuda specimen. Figure Ilia. — Ant {Fheidole pusilla); a, minor 

 worker; b, major worker or soldier, both much enlarged; t, distal end of 

 tibia ; c, tibial comb ; from drawings of Bermuda specimens by A. H. V. 



ica, Hawaiian Is., West Indies, etc. According to Miss Hay ward, 

 who has sent specimens, it is common on flowers of honeysuckle in 

 August. October, L. Mowbray. In turn it has an ichneumon 

 parasite (Entedon Hagenoici) which destroys its larva, but whether 

 the latter occurs in Bermuda is not known. 



Ants. (Eormicarice.) 



Ants of several undetermined species were collected by us which 

 have not yet been fully studied by a specialist; none of them were 

 winged. 



Among the recognized species observed are the small House-ant 

 (fig. 110), and the Garden-ant or Pavement-ant (fig. Ill), belong- 

 ing to the Myrmicidse. Probably these were early introduced from 

 England. The early writers, however, mention certain ants as 



