Olesicampa] BRITISH ICHNEUMONS. 163 



spiracles remote from the distinct lateral scrobes ; second segment longer 

 than broad, with thyridii obsolete ; terebra not extending beyond anus. 

 Legs red or fulvous and not slender, with the hind coxae always black 

 and calcaria not extending beyond centre of metatarsus ; the testaceous 

 or dull red hind tibiae exttTnally subsetose-spinulose and sometimes 

 apically, though very rarely before their white base, nigrescent ; claws 

 somewhat elongate and at least basally pectinate. Wings with the stigma 

 flavous and tegulac usually white ; areolet not snaall, subsessile or very 

 shortly petiolate, emitting recurrent nervure beyond its centre; radial cell 

 not broad, apex of discoidal subacute below ; cubital nervure not or 

 liardly divergent, parallel emitted from centre of brachial cell ; nervellus 

 vertical and not geniculate. 



It is especially distinct in its capital and mandibular structure, the 

 apically pale antennae and entire nervellus. When erecting this genus, 

 as sufficiently distinct from the remainder of Holmgren's Limneria, 

 Thomson split oft' a large number of forms as good species ; whether 

 these will stand the test of a fuller investigation 1 am not prej)ared to 

 say ; to me the majority appear little more than colour and develop- 

 mental varieties, of which I have seen four not hitherto known to occur 

 with us, since no one has paid especial attention to the group in Britain. 



Table of Species. 



(2). I. Pronotum striolate ; tegulae nigres- 



scent ; areola not long .. i. AUCTOR, Cirav. 



(i). 2. Pronotum not striolate ; tegulae 



white ; areola elongate. 

 (S). 3. Larger; hind femora black; lateral 



petiolar sulci wanting. 

 (5). 4. Apex, not centre of abdomen, hind 



trochanters and cheeks pale 2. CiRACIl.lHES, '1 litinis. 



(4). 5. Centre, not apex of abdomen pale ; 

 hind trochanters partly and 

 cheeks black. 

 (7). 6. First segment entirely, apex of hind 



tibiae hardly, black .v KilA l\ F,\ ikis. Gnicl. 



(6). 7. First segment apieally red ; hind 



tibiae broadly black 4- i'iN<>rAr\, 'r/mnis. 



(3). 8. Smaller; hind femora usuallv red; 

 petiolar sulci basallv strong-. 

 (16). Q. Abdomen centrally broadly rufescent ; 



terebra hardly exserted. 

 (1,3). 10. First segment apically, with all fem- 

 ora and tibiae, red. 

 (12). II. Pilosity of body white ; metathoracic 



areae indistinct .S- I-onc.ipks, J///// 



(11). 12. Pilosity of body griseous; metathor- 

 acic areae strong .0. I'Ac.ana, Jlohiiiir. 

 (10). i^. First segment, with .apices of hind 



tibiae, blac k. 

 (15). 14. Antennae elongate ; hind femora red, 



(jnly apiially bl.ick -I- NUiKoiM.ICA, '/'hnnis. 



(14). 15. Antennae short ; hind femora entirrl\- 



black tlnous^hout S. siMi'l.KX, '/'/lu/i/s. 



(())■ i''. Abdomen entirely blac k (iorsalU' ; 



terebra slightly exserted . . (). sKkU ka, //n/iui^r. 



