104 [October 



It differs from all the other species in this genus by having the sides and under- 

 surface of the two basal segments of the abdomen more or less testaceous in colour, 

 and slightly translucent. The abdomen is cinereous, and has a longitudinal, tapering, 

 black dorsal stripe, as well as a series of transverse black marks at the base of each 

 segment, which are dilated on each side of the central stripe, so as to form six semi- 

 lunar-shaped spots. The legs have the femora and tarsi black in both sexes, and all 

 the tibise more or less testaceous. In some varieties the legs are almost black, and 

 the yellow tinge at the base of the abdomen also indistinct. 



The sub-anal appendages of the males are very complicated. Two long horny 

 processes, with sharp points, extend forward from the under-surface of the anal 

 segment, which are furnished with tufts of black hairs in the middle ; they some- 

 times project downwards, the points being free and erected ; at other times they are 

 folded under two other membranous lobular bodies, which are placed under the 

 penultimate segment and extend backwards. 



H. SOCIA, Tall. 



This is an aberrant species, the generic position of which is rather difficult to 

 determine ; the arista being short-haired, and the abdomen oval and depressed. 

 Rondani (the latest authority on the Anthomyiidce*) placed it first in the genus 

 Anthomyia, but afterwards removed it into the present one, to which it certainly 

 belongs. It is not common. 



(To be continued) . 



ON CERTAIN BRITISH HEMIPTEHA-HOMOPTERA. 

 BY JOHN SCOTT. 

 (Continued from p. 67). 



LlBURNIA V-FLATA, Sp. 110V. 



$ . Yellow. Crown yellow, as long as broad from in a line with the anterior 

 margin of the eyes to the base, anterior margin rounded, next the basal margin a 

 distinct fovea on each side adjoining the eyes, the triangular space in front between 

 the keels reaching to the frons : face yellow, slightly dilated below the eyes : an- 

 tennae yellow, 2nd joint granulated. 



Pronotum yellow, with a distinct but minute fovea in the centre on each side of 

 the central keel, posterior margin arcuate : scutellum yellow, somewhat depressed at 

 the base on each side of the central keel. Elytra yellow, reaching to the apex of 

 the 6th abdominal segment, apex broadly rounded, nerves not granulated. Legs 

 yellow : claws black. 



Abdomen yellow : genital segment yellow, posterior margin viewed from the 

 side nearly straight, viewed from behind broadish-oval, appendage yellowish-white, 

 somewhat semi-oval, lower margin concave, upper margin inwardly on each side of 

 the tube, and the lower angles very narrowly, black ; processes yellow, Y-shaped, 

 upper margin narrowly margined with black and produced into a short tooth 

 interiorly. Length, 1 line. 



? . Unknown. 



This species stands between L.flaveola, Flor, and L. concolor, Fieb. 

 From the former it is easily distinguished by the different form of the 



* Dipterologiae Italics) prodromus, vol. vi Parma, 1877. 



