New Genera of British Mymaridae. 455 



ErytJimelus goochi, n. sp. (PI. XIII, figs. 6-10.) 



The head and thorax black ; the sides yellowish. The legs and 

 basal half of abdomen yellowish ; the apical half black. The antennae 

 of the male are 13-jointed and of one length and width throughout, 

 with 4 longitudinal ridges. The thorax very long. The antennae 

 of the female are 9-jointed ; the scape is very long ; the pedicel much 

 broader than the scape; the 3rd and 4th joints the same length; 

 the 5th a very little broader and longer; the 6th and 7th broader 

 but same length ; the 8th equal to the 5th and 6th together. The 

 club long and pointed, only slightly broader than the 8th and equal 

 in length to the 2nd to 6th combined. The thorax is long, but 

 shorter than the abdomen. The tarsi of the front legs are much 

 longer than the tibiae, the middle tarsi and tibiae about the same 

 length ; the hind tibiae and tarsi are longer than the others. The 

 wings are 0"65 mm. long by 0'16 mm. ; from the widest point to the 

 apex the surface is slightly hairy ; the longest cilia 0"16 mm., the 

 ovipositor projecting a little beyond the apex. 



Length 0"8 mm. 



Hob. Somerset {Dr. GoocJi) ; Holloway, London, N. : 

 August 1908 (F. Enoch). 



Dicopus, n. gen. 



The tarsi 5-jointed ; the abdomen sessile. The antennae of the 

 female 10 joints. The scape compressed with three angular pro- 

 jections on the upper edge, the space between the first and second 

 gently sinuate, the basal projection not so prominent as the others. 

 The wings 0-4 mm. in length and 0*05 mm. in width. The cilia 

 very long, the longest 0'23 mm. The ovipositor very minute and 

 short, just level with tip of abdomen. 



The male is at present unknown. 



Dicopus minutissima, n. sp. (PI. XIII, figs. 11, 12, 13.) 



General colour, testaceous; the head slightly broader than the 

 thorax ; the antennae of the female pale testaceous, the scape com- 

 pressed with three angular projections on the upper edge, the space 

 between tlie first and second gently sinuate, the basal projection not 

 so prominent as the other. The pedicel half as long as the scape, 

 as broad as the scape across the prominences — the 3rd and 4th joints 

 are about equal length. The 5th and 6th equal length, the 7th, 8th 

 and 9th shorter, but broader. Tlie club equal in length to the 6th, 

 7th, 8th and 9th combined. The tiyings are very delicate and oar- 



TRANS. ENT. SOC. LOND. 1909. — PART IV. (DEC.) H H 



