98 BRITISH ICHNEUMONS [Pimpla. 



[In a MS. table of this genus, drawn up by Bridgman and preserved in 

 the Castle Museum at Norwich, P. opactUata, is placed between P. ca/ligata, 

 VoU. (Pinac. pi. xxi, fig. 8) and P. i/habra/oi , Rossi (Tasch. Zeits. (jCS. 

 Nat. 1863, p. 258), which two species are considered nowadays to be 

 synonymous. P. illecthrator is distinguished by the length of its terebra, 

 which is longer than half the abdomen and its range does not appear to 

 extend as far north as our islands. That P. aterrima is distinct from 

 P. illecebrator, however, I am extremely doubtful, especially since of the 

 two examples of P. arctica noted by me above one has on the hind tibiae 

 a somewhat obvious pale band, while in the second it is extremely obso- 

 lete and all but wanting, though the specimens are certainly of one 

 species. It will be seen from Desvignes' description that nothing but 

 the terebral length precludes it from P. illeccbraior, if one regards the 

 presence of the tibial band variable ; the anterior tibiae are distinctly infus- 

 cate externally in my specimens, which have the abdomen 8 and the 

 terebra 3 mm. in length. It is most probably synonymous with P. arctica. 



PniPLA OPACELLATA, DeS7\ 



Head transverse ; face with griseous pilosity, parallel-sided ; frons 

 deplanate and excavate ; antennae slender and a little shorter than the 

 body. Thorax gibbulous and subcylindrical ; metathorax strongly punc- 

 tate. Abdomen finely punctate, black ; basal segment dorsally explanate, 

 deplanate and elevated ; incisures very distinct and deeply impressed ; 

 the fifth segment narrow but transverse ; terebra stout and one third the 

 length of abdomen. Legs red with the coxae, trochanters, apices of the 

 hind femora and whole of their tibiae and tarsi, black ; anterior tibiae 

 externally infuscate. Wings not clouded ; stigma and radix black, the 

 former basally white ; areolet oblique and sessile ; all the nervures black. 

 Length, 9 mm. 



Desvignes described it from a single 9 and says {I.e.) it belongs to 

 Gravenhorst's sixth section of the genus, which has the thorax, abdomen 

 and hind coxae black. 



The type, which I have examined, was reared by Mr. Barrett of Hasle- 

 mere from a pupa of Psyche opacella and is in the National Collection. 

 Bridgman, who alone has noticed this species since it was first described, 

 records it from Norwich, where it was captured by Wheeler.] 



29. examinator, Fab. 



Ichneumon graniinellae, Schr. F. B. II, ii. 301, ? (?) {nee Grav. et Holmgr). 

 Cryptiis examinator. Fab. Piez. 85, ? . Pimpla examinator, Grav. I. E. iii. 207 ; 

 Zett. I. L. 375; Ratz. Ichn. d. Forst. i. 116; ii.93; iii. 99; Holmgr. Sv. Ak. 

 Handl. 1860, n. 10, p. 19 ; Tasch. Zeits. Ges. Nat. 1863, pp. 52 et 262 ; Voll. Pinac. 

 pi. ix. fig. 5, (J ? ; cf. Sichel, Ann. Soc. Fr. 1864, p. 687. Var. P. bilineata, 

 Brulle, Hist. Nat. Ins. Hyra. iv. 98, ? ; Lucas, Exp. Alg. iii. 323 ; Tosq. Ichn. 

 Afr. 284, 5 . (?) P. clieloniae, Giraud. Ann. Soc. Fr. 1869, p. 149, i ¥ . 



A somewhat smooth black species, with legs partly red and white, and 

 the coxae black. Head immaculate, rounded behind the broadly and 

 ver)^ slightly emarginate eyes ; face convex and strongly punctate through- 

 out ; clypeus centrally depressed and apically margined ; frons transaci- 

 culate ; palpi piceous, with the three a])ical joints of the ^ stramineous. 

 Antennae slender and nearly as long as the body ; black throughout or api- 

 cally ferrugineous beneath ; scape immaculate. Thorax of 9 > ^^^ some- 

 times of (J , with a more or less obsolete line before the radix flavidous ; 



