1914.] 169 



stem of the sedeagus ; app. inf. divided, near the base into two branches, 

 of which the upper is about one-third longer than the lower, and 

 directed horizontally cephalad, the lower one straight and directed 

 obliquely downward and outward ; in the dorsal aspect the upper 

 branches of the two app. inf. diverge moderately from their bases, and 

 are strongly curved outward in their distal half. 



Female : yellowish-white, membrane and a spot in the apices of 

 the brachial and supra- brachial areas more evidently fumose than in 

 the male. 



Length, 4 mm. 



This species has been taken by Prof. Carr at Sherwood, on garden 

 plum, and at Nottingham, on plum, 17. VII. 



Typhlocyba plebeja, n. sjp. 



Male : upper-side pale yellow, the crown whitish-yellow, the mem- 

 brane not obviously fumose. App. sup. falcate, erect, widely divergent ; 

 app. inf. porrect, divided near the base into two similar divergent fal- 

 cate branches, each having the concavity upward ; in the dorsal aspect 

 the upper branches of the two app. inf. are connivent at the base and 

 thence diverging, the lower branches are sub-parallel, but owing to the 

 greater separation of their points of origin the distance between their 

 tips is only little less than that between the tips of the upper branches. 



Female similar in colour to the male. 



Length, 3*7 — 4 mm. 



Taken by Prof. Carr at the following localities in Nottinghamshire, 

 namely, Arnold, on oak and lime, 24,VII ; Bulwell Forest, on alder, 

 21, VII ; Fiskerton, on oak, 25, VII ; and Epperstone Park, on elm 

 and hazel, 6, IX. 



Typhlocyba tersa, n. sp. 



Male : upper- side yellowish- white, the membrane faintly fumose, 

 claws blackish. App. sup. straight acicular, diverging at a right 

 angle, a little inclined cephalad ; app. inf. divided near the base into 

 two divergent branches, of which the upper and longer is nearly 

 straight, and the lower falcate with the concavity uppermost ; in the 

 sub-dorsal aspect the upper branches of the two app. inf. are curved 

 outwardly and the distance between their tips is about equal to their 

 length and considerably more than the distance between the tips of 

 the lower branches. 



