Ctenopelmint’) BRITISH ICHNEUMONS. 269 
Table of Genera. 
(8). 1. Abdomen more or less_ distinctly 
petiolate ; legs never stout. 
(5). 2. Flagellum very stout throughout ; 
claws elongately and closely pec- 
tinate. 
(4). 3. Clypeal apex depressed and not pro- 
duced; hind legs normal .. CTENOPELMA, Holmgr. 
(3). 4. Clypeal apex centrally dentate ; hind 
legs long and incrassate . SCOLOBATES, Grav. 
(5 Flagellum normal; claws shortly and 
sparsely pectinate, 
(7). 6. Head buccate; metanotal carinae 
distinct ; clypeus not discreted .. PRIONOPODA, Hlolmgr. 
(6). 7. Head normal; metanotal carinae 
wanting; clypeus discreted .. LATHROLESTUS, Zhoms. 
). 8. Abdomen distinctly sessile ; legs very 
often short and stout. 
(10). 9. Basalsegments smooth; @ flagellum 
spatuliformly dilated eh .. EUCEROS, Grav. 
(9). 10. Basal segments usually rugulose ; 
flagellum not dilated. 
(14). 11. Legs subelongate and somewhat 
slender; basalnervure suboblique. 
(13). 12. Clypeus not discreted from face; 9? 
not larviferous 5 MONOBLASTUS, /7Zg. 
(12). 13. Clypeus discreted from face; females 
larviferous .. POLYBLASTUS, AZg. 
(11). 14. Legs distinctly short and stout ; basal 
nervure subvertical. 
(16). 15. Mandibular teeth subequal; antennal 
joints about thirty .. = .. ERROMENUS, Holmgr. 
(15). 16. Mandibular teeth unequal; antennal 
joints at most twenty. 
(18). 17. Labrum not exserted ; flagellum with 
at least seventeen joints De GRYPOCENTRUS, Rauthe. 
17). 18. Labrum distinctly exserted; fla el- 
7 y & 
lum with about 12 joints .. .. ADELOGNATHUS, Holmgr. 
CTENOPELMA, Holmgren. 
Holmgr. Sv. Ak. Handl. 1855, p. 117. 
Head transverse and hardly buccate, vertex emarginate; clypeus trans- 
verse and convex with its apical margin depressed, truncate or rounded ; 
mandibular teeth stout and subequal in length; eyes entire and oblong- 
oval. Antennae filiform, distinctly stout and as long as body. Thorax 
stout, often with apical notauli; metathorax semiglobose with circular 
spiracles; areola and petiolar area often confluent. Scutellum a little 
elevated and often pale. Abdomen elongate subfusiform, shortly pilose 
and distinctly petiolate; basal segment convex, straight, constricted 
before the almost antemedial spiracles, with postpetiole gradually a little 
dilated to apex, and the discal sulcus usually distinct ; second and third 
segments subequal in length; terebra stout and not concealed. Legs 
normal with hind femora subincrassate; tarsal claws very distinctly, 
usually elongately and coarsely pectinate. Areolet usually entire, radial 
cell lanceolate, nervellus intercepted above, in or below its centre, 
