Catalogue of British Ichnenmonidce. 159 



Monohlastus Caproni, n. s. 



Facie flava, abdominis medio rufo, pedibus nigris, 

 tibiis, trochanteribus, genubus tarsisque anticis pallide 

 flavis. 



Head behind the eyes not or scarcely narrow ; antennae 

 a little shorter than the body ; clypeus separated from 

 the face, sometimes obsoletely so ; face wider below than 

 above ; a channel running from the anterior ocellus to 

 the antennae ; head finely punctate. Thorax finely punc- 

 tate ; scutellum keeled at the sides to the middle ; meso- 

 thorax somewhat trilobed in front ; supero-medial area 

 elongate ; lateral areae only partially divided ; 1st segment 

 of abdomen rather more than twice as long as wide, 

 longer than the hinder coxae and trochanters, about twice 

 as wide at the apex as at the base, channelled to just 

 beyond the middle ; tubercles not prominent, placed 

 about in the centre ; 2nd and 3rd segments quadrate, the 

 3rd sometimes subquadrate, remainder transverse ; the 

 anterior segments somewhat coarsely punctate. Wings 

 with an areolet, petiolated ; transverse outer nervure 

 partially obliterated ; transverse ordinary nervure not 

 interstitial ; transverse anal interrupted below the middle : 

 external radial slightly incurved in the middle. Claws 

 distinctly and closely j)ectinated. 



Black ; scape beneath sometimes, mouth, middle of 

 mandibles, clypeus, face, spot on cheeks below the eyes, 

 this sometimes united with the face, front and middle 

 coxae and trochanters, yellow ; 2nd to 4th abdominal 

 segments red ; the 2nd with two dorsal spots below the 

 base, sometimes united into a blotch ; apex of 1st seg- 

 ment sometimes reddish ; femora black ; front and middle 

 trochanters, knees, tibiae, and tarsi dirty yellowish white ; 

 extreme apex of hind trochanters the same colour ; hind 

 legs black ; middle of tibiae or beneath more or less pale. 

 Stigma and nervures black ; base of wings pale. Length 

 6*5 — 9 mm., male. 



Taken by Dr. Capron in the neighbourhood of Shere. 



This distinct Polyhlastus, in shape, is very like the 

 Tryiilion rutUator group, but the heavily pectinated claws 

 easily distinguish it from any of the true Tryplions. 



Polyhlastus Bridgmam, Parfitt. 

 Ent. Mo. Mag. xviii. 251. 



