2/6 CALIFORNIA ACADEMY OF SCIENCES. 



PsALLUS GUTTULOSUS Reuter. One specimen, No. 804, 

 was taken at San Fernando in May by Mr. C. D.Haines. 



PsALLUs n. sp.? 



Two specimens, No. 307, from Comondu, March, were 

 collected by Mr. C. D. Haines. The condition of the 

 insects would give only misleading characters for descrip- 

 tion. 



Several other species related to Psallus are in the col- 

 lection from Lower California, but they do not furnish 

 proper material for description. 



x\ most interesting and peculiar type of Capsid, related 

 to Pilophorus, is in the collection and labeled " Cal. 9.'' 

 It seems important to add a description of it in this arti- 

 cle, since the same insect, or one much like it, was col- 

 lected in Lower California by Mr. John Xanthus. 



Myrmecopsis n. gen. 



In form much resembling; the common black Formica 

 which inhabits the wood of trees in the eastern United 

 States. Head long, thick, almost vertical, much thicker 

 than the swollen middle of the pronotum ; the front con- 

 tinuous with the vertex, and both occupied by a broad 

 ridge down the middle, which grows obsolete below the 

 line of the antenna?, the tumid head growing narrower 

 behind the e3^es and ending in a short and much contracted 

 neck, the face wide to the base of the tylus, conical be- 

 low that line; eyes large, placed nearly vertical, promi- 

 nent above and laterally; antenniferous basal support 

 starting slender below the middle of the eye and project- 

 ing to near the lower line of the eye; the basal joint of 

 antenna? reaching almost to the tip of the tylus, the sec- 

 ond joint clavate towards the tip, as long as from the 

 middle of the eye to the base of pronotum, the third joint 

 abruptly slender, about half as long as the second; ros- 



