458 Mr. Fred. Enock on 



little longer than the tarsi. The ovipositor just level with the tip of 

 the abdomen. 

 Length 1-15 mm. 



Ilab. Woking: July 1885 (Fred. Enoch); Somerset 

 {Dr. Gooch); Burnham Beeches: 1907 {C. 0. Water- 

 house). 



This species at first sight resembles a Cosmocoma, but 

 the totally ditferent " gait " from the insects of that genus 

 gave us the first impression that it was something new, 

 which the peculiar asperate scape and carina confirmed. 

 This beautiful species is one of the most elegant and fairy- 

 like in its movements. 



OoPHiLUS, n. gen. 



The tarsi 4-jointed ; the abdomen sub-sessile. The antennae of 

 the male 13-jointed, those of the female 11 joints. The ivings large 

 and ample, 1'35 mm. long x 0*5 mm. broad ; the cilia very short, 

 the longest 0"1 mm. The ovipositor very long, projecting 0"25 mm. 

 beyond the tip of the abdomen. 



Oophilus longicauda, n. sp. (Plate XV, figs. 1-6.) 



The general colour black. 



The head slightly narrower than the thorax ; the antennae of the 

 male 13-jointed, black and 1-65 mm. long. The scape very long and 

 compressed, centre is black, the base and tip yellowish ; the 4th to 

 11th joints of equal length and thickness, the 12th and 13th a little^ 

 shorter ; the pedicel yellowish in the female ; the club longer than 

 the scape ; the joints 3 to 11 gradually increasing in length and 

 breadth ; the club 0'2 long, the lower edge serrated. The thorax 

 slightly broader than the head. The tvings broad, I'Zb mm. long x 

 0*5 broad, of a milky colour, the outer margin very slightly flattened. 

 The cilia very short, the longest O'l mm., the inner margin straight, 

 the surface covered with short hairs ; the femora of the female com- 

 pressed, with yellow tips and bases, black in the middle. Front tibiae 

 shorter than tarsi. The abdomen long and tapering to tip ; the 

 ovipositor very long, powerful, projecting 0*25 mm. beyond the apex. 



Length 1*6 mm. 



Eab. Richmond Park, Surrey: July (Fred. Enoch 

 and C. 0. Waterhouse) 1908. 



DoRiCLYTUS, Forster, Linnaea Ent., II, 1847, p. 226. 



The tarsi 4-jointed ; the abdomen petiolate. The antennae of the 

 male 13-jointed, of the female 9-jointed ; the wings 1'13 mm. long 



