452 Mr. Fred. Enock on 



of such species as I have been enabled to work out in the 

 past thirty years. 



Stethynium, n. gen. 



Tarsi 4-jointed ; abdomen sessile. Antennne of male 13 joints, 

 the female 11 joints, including the club, composed of three joints. 

 Scape twice as long as broad, having a number of circular concavities. 

 Wings broad and symmetrically curved on costa and inner margin. 

 Cilia very long. 



Stethynium tridavatum, n. sp. (PI. XII, figs. 1-5.) 



General colour, light testaceous. Antennae of the male, 13 

 jointed. The scape much swollen on the outer side, twice as long 

 as broad, with a number of circular concavities. The pedicel cup- 

 shaped, as broad as long. The 3rd as long as the 2nd. The 4th to 

 the 13th of about equal length. The 12th and 13th joints forming 

 a narrow club. The whole of the antennae testaceoiis. Antennae 

 of the female 11 joints in all, including the club of 3 joints. The 

 scape testaceous, becoming darker. The outer side much swollen, 

 the surface pitted with a number of circular concavities. The 

 pedicel equal in length and breadth, the 3rd and 5th joints the same 

 length and cylindrical, the 4th slightly longer, the 6th, 7th and 8th 

 a little shorter and broader. The club equal in length to the 2nd, 

 3rd and 4th, combined, is composed of 3 joints, the second articula- 

 tion commencing at right angles from the upper side to the centre, 

 then turning off in a curve towards the tip, emerging at the lower 

 side about three-quarters the length of the club. The 2nd arti- 

 culation emerging just before the tip, giving the three jpints some- 

 what of a flabellate appearance. 



The head is broader than the thorax, which is longer than the 

 abdomen. 



The ivings of the male are 0"8 mm. long by 0'23 mm. broad. The 

 longest cilia 0'23 mm. Those of the female are 0'7 mm. long by 

 0'2 mm. broad. The curves of both male and female wings are 

 symmetrical, uniting in an obtuse angle. 



The ovipositor projecting just beyond the tip of the abdomen. 



Length 0"7 mm. 



Sab. Woking : September 1885 (Fred. EnocJc) ; -Somer- 

 set {Dr. Gooch). 



This species somewhat resembles some of the Anagri in 

 its colour and form, but is quite distinct in the number of 



