368 ENTOMOLOGICAL NEWS. [Oct., 



being pallid yellowish to the distal joint as in the cephalic and 

 intermediate legs of aspidioti, but all of the caudal tarsus in 

 the latter species is brown black. The antennal joints are 

 slightly longer in brittanum. 



From euchariforme Haliday, with which this species was 

 confused as shown below, brittanum differs in bearing dis- 

 tinctly broader fore wings which bear distinctly shorter mar- 

 ginal cilia along the cephalic wing margin and in having dark- 

 er legs. Its wings (speaking of brittanum} are moderately 

 broad. 



(From one specimen, two-thirds-inch objective, one-inch op- 

 tic, Bausch and Lomb). 



Female. Unknown. 



Described from a single male specimen loaned to me for 

 study by Dr. L. O. Howard, and being another one of the 

 series of English species sent to the U. S. by Mr. Fred. 

 Enock, of London. The slide bearing it was labelled, "Fredc. 

 Knock, preparer. Order Hymenoptera. Family Mymaridse. 

 Genus Cosmocoma. Species euchariformis $ . The Large 

 Fairy Fly. Spot lens, 2-inch to ^2 -inch." Thus, the species 

 was taken for the male of euchariforme Haliday. 



Habitat. England ( PLondon or vicinity). 



Type. Catalogue No. 14,207, United States National Mu- 

 seum, Washington. D. C., one male in balsam. 



I have pointed out in this brief paper the characteristics of 

 some of the European forms of the family Mymaridre, evidently 

 some of the more common and abundant of the species occur- 

 ring in England. They have all proved to be distinct from our 

 more common American species. Anaphes pratensis Foerster, 

 however, occurs in this country as noted above and elsewhere : 

 I have no knowledge concerning whether or not it may have 

 been introduced or whether it may not have originated here. 

 As concerns the identification of these species I am not alto- 

 gether satisfied, since the European Mymaridae are now in a 

 state of much confusion due to their long neglect and also be- 

 cause in most cases the authority for identifications is not defi- 

 nitely stated. 



