BY FREDERICK A. A. SKUSE. 697 



shorter than the anterior branch of the fork ; branches of the fork 

 running almost parallel, a little divergent at their tips, the 

 posterior branch scarcely arcuated at its base, fg about \ longer 

 than gh ; hi rather shorter than Im. 



Hah. — Hexham (Skuse). April. 



116. SCIARA APPROXIMATA, Sp.n. 



9. — Length of antennee 0-040 inch ... 1-01 millimetres. 



Expanse of wings 0-080 x 0-030 ... 2-02x0-76 



Sizeofbody 0-075x0-015 ... 1-89x0-38 



A.ntenn£e slender, deep brown, longer tha:i the head and 

 thorax together, with a short, dense, pale yellowish pubes- 

 cence ; joints of the scapus deep brown, sparsely haired ; 

 flagellar joints sub-sessile, twice as long as broad. Head black, 

 nitidous, sparsely pubescent. Eyes non-contiguous but very 

 close. Palpi ochraceous-brown. Thorax black, nitidous, with 

 three indistinct longitudinal double rows of yellowish hairs, the 

 lateral ones reaching almost to the scutellum ; also a few long 

 hairs between the origin of the wings and the humeri, and on the 

 scutellum. Halteres deep brown, almost black, ochraceous at 

 the base of the stalk, club sprinkled with some very short hairs at 

 the base. Abdomen very deep umber-brown, of a lighter shade 

 between the segments, with a tolerably dense pubescence ; lamellae 

 of the ovipositor very small, brown, elliptical, with brownish- 

 yellow pubescence. Coxge and femora ferruginous-ochraceous. 

 Tiljise and tarsi dusky-brown. Jn the fore-legs the tarsi a little 

 longer than the tibiae ; in the intermediate-legs the tibiae and 

 tarsi of equal length ; in the hind-legs the tibiae a little longer 

 than the tarsi. Spurs veiy short. First joint of the tarsi 3 times 

 the length of the second ; second joint a little longer than the 

 third ; third and fifth joints of about equal length, and \ longer 

 than the fourth. Wings pellucid, with a pale yellowish-brown 

 tint ; brilliant margaritaceous reflfictions. Veins yellowish-brown. 

 First longitudinal vein reaching the costa a short distance before 



