270 HYMENOPTERA ACULEATA. 



The only localities known for this species are Norwich ; 

 (Bridgman). New Forest ; (/. Walton), Weybridge, 1842 ; 

 (Stevens); and Woking ; in this last locality, where it was 

 first discovered by Mr. F. Eaock, frequenting the flowers 

 of Lysimachia vulgaris along the canal, it is annually to be 

 found in August. It also occurs occasionally on thistles. 



CILISSA, Leach. 



Very like Andrena, but with the abdomen less flattened, 

 and rather wider and more declivous at the base ; labial 

 palpi four-jointed, the joints cylindrical, maxillary palpi 

 six-jointed, paraglossee wide and sheath-like at the base, 

 apical processes narrower, obtuse at the apex and ciliated 

 with long hairs, tongue very pointed, the hairs towards the 

 apex projecting at right angles and bifid ; labrum trans- 

 verse, apical joint of the antennae obliquely truncate, wings 

 with three submarginal cells ; $ without distinct floccus, 

 and with the posterior metatarsus produced at the apex, 

 both sexes with a distinct tibial patella; armature with the 

 apices of the stipites not convergent as in J.Hf7c('«a, seventh 

 segment tuberculate at the sides apically. F. Smith says 

 that the economy of this genus is similar to that of Andrena, 

 but the species are not common, and I have never seen 

 them except away from the burrows. This appears to be 

 a genus of small extent; there are two British species which 

 may be thus distinguished. 



(2) 1. (J, abdomen without distinct pale apical 

 bands on the segments ; ?, apical fringe 



golden HiKMORRHOIDALTS. 



(1) 2. (5', abdomen distinctly banded ;?, apical 



fringe black-brown .... leporina. 



C. lisemorrlioidalis, Fab. [chrysura, Eirhy). — Black, 

 head and thorax punctured, clothed with brownish grey 

 hairs, those of the vertex and of the disc of the mesonotum 

 iu both sexes black, pubescence in the (J paler, longer, and 

 more abundant, joints of the flagellum in the ^ very 



