274 THE ENTOMOLOGIST. 



parapsides. Psilonotiis is especially distinguished among the 

 Chalcidiae by its highly-polished and glittering raesothorax. 



PSILONOTUS ADAMAS. 



Having nothing to say on the habits of these three flies, I will 

 conclude with a few words about other parasites. 



1. Cynips viridis, Fourc. This is a Callimome, and may 

 be conveniently considered as a synonym of C. Bedeguaris, 

 as it also lives in the bedeguar. 



2. Cynips Rubi, (Sc/ir. Also a Callimome, whose synonyms 

 may be recorded on a future occasion. Schrank saw it pro- 

 ceeding from bramble-galls or swellings, concerning which 

 Giraud has since published extensively. 



3. Cynips fungosa, Fourc. Also a Callimome, but the 

 species is doubtful ; however, it may be adopted in preference 

 to one of the more modem names bestowed upon oak-gall 

 Callimome species, and then it will not be afterwards brought 

 forward as a claimant for priority. 



4. Cynips pomacea, Fourc, or C. solitaria, Oliv. This is 

 a still more doubtful name, but it may be applied by attend- 

 ing to the inmates of the small, round, hard galls beneath 

 oak-leaves; and I purpose noticing it at some other time. 



5. Ichneumon Muscaruu), Linn. This is a Pteromalus, and 

 is a very elegant little creature, but its small size hides its 

 beauties. It must be well l<nown by its continual occurrence 

 on windows, where it occasionally appears in great numbers. 

 It prolongs the existence of many Aphides, by consuming 

 ladybirds and Aphis-eating flies in their infant state, and 

 thereby helping to adjust their numbers to their oflice in the 

 scheme of creation. 



Francis Walker. 



