AXDREMD-Jl. 215 



posteriorly, finely and longitudinally rugose at the base ; 

 abdomen rather finely and clearly punctured in the $, 

 very finely and closely in the ? , except on the basal 

 segment, which is very shining and irregularly punctured, 

 basal segment clothed at the sides with pale, rather 

 pruinose pubescence, second and third segments with a 

 similar basal band, widening at the sides, fourth with basal 

 lateral spots in the S , entirely clothed with pale pubescence 

 in the ? , remaining segments in the $ clothed with pale 

 hairs, seventh subvertical, bright red, fifth in the ? clothed 

 with golden hairs, sixth pale and somewhat truncate, 

 ventral segments with long pale hairs, $ with the ventral 

 segments depressed, fourth and fifth emarginate, fringed 

 with short golden hairs, sixth red at the apex, armature 

 with the sagittce produced above the surface of the stipites 

 in two curved knife-like edges; legs black, $ with the 

 tarsi, and sometimes the base and apex of the tibiae, 

 yellow, ? with the scopa) brownish, 



L. 8-10 mm. 



Rare. Chobham ; Woking; Bournemouth. Poole; 

 Christchurch ; Moffat, Scotland ; Yorkshire; {Sniifli). 



The red seventh abdominal segment of the <J and the 

 greenish thorax of the ? distinguish this from all its 

 allies. 



H. Cylindricus, Fah. {fulcocinda, Klrb., ahdominalis, 

 Kirh.). — Head and thorax black, finely and closely punc- 

 tured, especially in the ? , rather sparsely clothed with 

 brown hairs, face elongate in the cJ, clothed with white 

 hairs below the antenna, which reach to about the apex of 

 the thorax; wings almost hyaline, nervures brown, pro- 

 podeum viewed from in front sharply truncate posteriorly, 

 the margins reflexed round the lateral angles, basal area 

 clathrate, subtriangular in the c?, semicircular in the ? ; 

 abdomen shining, blackish brown, elongate and shalluwly 

 punctured in the J, with the first three segments generally 

 more or less red, obovate in the ? , all the segments brown, 



