366 ENTOMOLOGICAL NEWS. [Oct., 



have with me. These two are Polyncma flavipes Walker and 

 P. fumipennc Walker ; the specimens of the former are from 

 the collections of the United States National Museum and of 

 the latter (two specimens) from Mr. C. O. Waterhouse, some- 

 time of the British Museum. The specimens of fumipcnne 

 (identified by Mr. Waterhouse, perhaps in association with Mr. 

 Enock) I have described elsewhere; it differs very pronounc- 

 edly from euchariforme ; the fore wings are very much broad- 

 er, their discal ciliation very much coarser, the body and ap- 

 pendages much longer and slenderer, the legs more intensely 

 colored (orange) and thus the two species should never be con- 

 fused. The species flavipes differs nearly as much, but the dis- 

 cal ciliation of the fore wings in this species is moderately fine, 

 not coarse ; the coloration is somewhat as in fumipcnne. L 



Thus, here are three distinct British species of the genus 

 which differ from any American form known to me and I de- 

 scribe a fourth below. 



The following specimens : Polynema euchariforme Haliday 



a single female on a slide loaned by Dr. L. O. Howard and 



labelled "Fredc. Enock, preparer. Order Hymenoptera. Fam- 



iiy Mymaridas. Genus Cosmocoma. Species euchariformis 9. 



The Large Fairy Fly. Spot lens, 2-inch to y 2 -mch." 



Polynema flavipes Walker A pair found mounted on tags 

 in the United States National Museum collection, now re- 

 mounted in xylol-balsam and labelled "Polynema flavipes, 

 Walker, 9 $ Am. Ent. Soc. To be returned." 



Polynema fumipcnne Walker Two females kindly sent to 

 me by Mr. C. O. Waterhouse, now mounted in xylol-balsam 

 and labelled, ''Cosmocoma fumipcnnis Walker. Eng. Richmond, 

 24.9.09. C. Waterhouse, Whitehouse Plantations." 



2. Polynema brittanum new species. 

 Normal position. 



Male. Length, 0.80 mm. Moderate to moderately small for the 

 genus. About the same size as euchariforme with which it was con- 

 fused. 



General color brownish black or black suffused with some brown, 

 including venation, antennae, intermediate and posterior femora and 

 tibiae and distal tarsal joints. Pedicel of antenna suffused with yel- 

 lowish. Trochanters, knees, tips of tibia?, proximal three tarsal joints 

 and cephalic legs yellowish, the tarsal joints paler. Wings hyaline. 



