Nemeritis] BRITISH ICHNEUMONS. 133 



5. gracilis, Grav. 



Caiitpoplex gracilis, Gr. I.E. iii. 511, <^. C. Duicroccitfnis, (Jr. lib. cit. 519, 

 ? . Nemeritis iiutcroccntra, Holmgr. Sv. Ak. Handl. 1858, p. 105; Brisch. Schr. 

 Nat. Ges. Danz. 1880, p. 177; lib. cit. 1892, p. 45; Thorns. O.E. xi. 1118, j 9. 

 Limncria gracilis, Brisch. lib. cit. 1880, p. 150, cf ; I'cc Bridg. Trans. Knt. Soc. 

 1884, p. 427. 



A black species with tlic legs partly red and flavidous, and the tiTcbra 

 a little shorter than the abdomen. Length, 5^-7 mm. 



Similar to A. sordida in colouration but with the vertex narrower and 

 somewhat roundly constricted behind the eyes, the calcaria a little 

 shorter and the anterior legs of the male basally, with centre of its hind 

 tibiae, substramineous. The later Gravenhorstian name has hitherto 

 been in use, but, since the obvious synonymy of (iravenhorst's male is 

 unhesitatingly stated by Thomson, only Bridgman's species remains 

 doubtful. 



This is one of the commonest of the genus on the Continent, though 

 quite the reverse seems to be the case with us. It has been known as 

 British since 1870; it is recorded bv Bridgman from Lynn in Norfolk 

 and as bred by Porritt from both Plycholoma kcheatia and Scoparia coar- 

 della (Trans. Norf. Soc. 1894, p. 622). Bignell captured it at Plym Bridge 

 at the end of INIay; but I possess only a few females in Capron's Surrey 

 and Piffard's Herts collections, from Niton in the Isle of Wight, where 

 ^Marshall captured it, Tostock in Suffolk during early September, and 

 Cromer in August, 1Q03. 



6. lativentris, TJioms. 

 Nemeritis lativentris. Thorns. O.E. xi. 119, S ? . 



Black with the anterior legs mainly pale, the terebra nearly as long as 

 abdomen, which has second segment subquadrate. Length, 4-4^ mm, 



A small species with the postpetiole subquadrate and the second seg- 

 ment not longer than apically broad, with its apical margin broadly red. 



I possess four females named '^lativentris, Thoms." by Capron with a 

 query, which he captured twenty years ago about Shere in Surrey; I con- 

 sider his tentative identification probably correct, since they differ from 

 the description only in having the abdomen but narrowly red-banded 

 centrally. Elsewhere it has not been taken, since first described from 

 Gottland in Sweden by its author. 



7. canescens, Grav. 



Campopiex canescens, Gr. I.E. iii. 555, ? . Nemeritis canescens, Thoms. 

 O.E. xi. 1120, cf ? . Amorphota epliestiae. Cam. Proc. Linn. Soc. N. S. Wales, 

 1912, p. 187. Idechthis oahucnsis, Ashm. Fauna Hawaiiensis, i, 1901, p. 355. 



A slender black species, with grey pubescence. Antennae somewhat 

 longer than half body. Thorax black, with the metathorax not shining. 

 Abdomen twice as long and only half as broad as thorax, laterally strongly 

 compressed with the fourth to seventh segments, and ventral surface, 

 fulvidous or flavidous ; petiole strongly elongate and about double length 

 of the broader postpetiole ; terebra a little longer than half abdomen. 

 Legs rufescent with the front coxae and trochanters flavous; intermediate 



