OCCURRING ABOUT HOLYWOOD. 175 



poisers milk-white : feet dull yellow : wings obscure, the transverse 

 nervure darker. (To division B.) 

 On the sea-coast. 



E. fossarura. Fusco-eenea, hypostomate <sneo, pedihus nigris, 

 alls fuscanis, nervis transvcrsis obscuris. (Long. .11; 

 dilat. .^6.) 



(To division C. b.) Resembles E. coarctata ; but the second longi- 

 tudinal nervure has not the little branch : seta of antennae 

 pubescent : abdomen brassy green. 

 A very abundant species. 



E. hecate. Nigi'o-cenea, aUsfuUginosis, nervis trans versis 

 obscuris utrinque hyalino guttatis. (Long. .11; dilat. .22.) 



(To division C. b.) Resembles the last ; but the wings are much 

 shorter and darker, at the end of the second nervure a dusky spot, 

 and a distinct white one above and below each transverse 

 nervure : the nervures of the tip bordered with brown : hind feet 

 brown. 



E. infecta. Nigro-cBnea, pedihus nigris, scutello chalybeo, 

 alts obscuris, nervis transversis fuscis. (Long. .08.) 



(To division C. b. but the termination of the 2d longitudinal nervure 

 is farther from the tip) : wings greyish, transverse nervures clouded 

 with brown, a hyaline spot above and below the inner : face 

 cinereous : seta pubescent. 



E. micans. Obsctire viridis,Jronfe violacea, antennarum seta 

 subnuda, hypostomate camiido. Mas. Aid Jlavescente. 

 Fem. 



Size of E. riparia ; but distinguished by the nearly naked seta and 

 intense colour : face below the antennag violet : thorax dark green 

 with violet lines : abdomen of the male hoary green, of the female 

 intense green with depressed tawny incisures. 



E. sibilans. Cinerea aut oUvacea, capite thoraceque ferru- 

 ginosis, hypostomate luteo, alis obscuris. (Long. .11.) 



(To division C. b.) Face convex, orange : antennae black : seta finely 

 pubescent : head and thorax with a ferruginous tinge, sides pearly 

 grey : abdomen brassy olive : eyes brilliant green and coppery : 

 legs black : transverse nervures darker : like E. leucostoma, but 

 twice the size. 

 Early in the spring and summer, on the sea-coast. The 



other EphydrcB, except E. curvicauda, appear later. 



