318 BRITISH ICHNEUMONS. [ Adelognathus 

with a concolorous mark below radices. Abdomen strongly nitidulous ; 
venter and in @, though rarely in 2, the apical margins of all the segments 
flavidous ; basal segment deplanate, dilated throughout; the second very 
smooth and shining, basally obliquely impressed; terebra shortly 
exserted. Legs normal, pale testaceous; ¢ coxae and trochanters 
flavidous, Q with hind coxae often basally infuscate ; hind tibiae stout, 
basally constricted. Areolet often entire and pentagonal, sometimes 
externally obsolete. Length, 3—4 mm. 
Known only from Prussia and Sweden, where it appears to be locally 
not infrequent. It was brought forward by me as new to Britain in 1907 
(loc. cit.), since I had swept a single female on 25th June of that year at 
Marvell Copse near Newport, in Isle of Wight. 
4. dorsalis, Grav. 
Hemtteles dorsalis, Gr. I. E. ii. 838, excl. ?; cf. Tasch. Zeits. Ges. Nat. 1865, 
p.127. Adelognathus (Pammicrus) dorsalis, Thoms. O. E. ix. 880, 3 ?; Onn 
lib. cit. xii. 1278 et Schm. Term. Fiiz. 1897, pp. 118 et 527. 
A black and shining species, with rufescent central abdominal plaga. 
Head distinctly punctate in both sexes, vertex transverse but temples as 

broad as eyes; mouth, the discreted clypeus and centre of face pale 
stramineous in both sexes. Antennae filiform, apically fusiform, infus- 
cate, with scape stramineous and flagellum ferrugineous beneath ; ¢ with 
elevated lines on the ninth and tenth antennal joints. Thorax shining 
black ; metathorax coarsely transrugose with no distinct costae (Tasch,) 
