Pezomachus.] BRITISH ICHNEUMONS. 213 



clouded ; stigma broad and piccous, with its base and the tegulae wliiie ; 

 basal nervure strongly curved, areolet externally and the nervelet wanting ; 

 nervellus antefurcal. Length, 4 mm. 



The only record of this species as indigenous that I can find is that of 

 a single female captured by Bridgman at Earlham in Norfolk, in July. 

 Sich has very kindly .sent me a pair of this s[)ecies which he bred in 1905 

 from two larval cases of Coleopliora saliiratella, found near London ; these 

 gnawed an exit through roughly circular holes, the one near the apex, the 

 other near the base of the case, whence the moth always emerges at the 

 very apex without injuring the case in any way. This is probably the 

 species referred to at Ent. Ann. 1S61, p. 41 : "An apparently new species 

 {o{ Pezomachus) was bred from Cokof^liora saturaiella by Mr. Scott" ; and 

 indeed tlie male is now for the first time here described ; the type is in my 

 collection. It would, Mr. Sich suggests, be interesting to know if the 

 parasite pierces the larva through its case or enters the latter for that 

 purpose ; in this instance it is certainly a direct parasite. Further, I 

 possess a very remarkable example of the female which was bred by 

 Godfrey from the false scorpion, Chthonius Rayi, Koch, at Edinburgh in 

 1903 ; this has the right compound eye broadly separated into two parts, 

 the lower, which attains only its normal distance from the mandibles, is 

 very small and deplanate ; but the upper, which rises so high as to render 

 the vertex uneven and the ocelli uncentral, is large, convex, and very 

 strongly protuberant ; one might imagine Chernetidous diet too nourish- 

 ing ! I have seen a female of this species captured by Evans at Aberlady 

 in East Lothian, which has unusually pale antennae, and very probably 

 constituted P. consocialiis, Forst. ; in all other features, however, it is quite 

 typical. 



34. timidus, Forst. 



Pezomachus timidus, Forst. Wiegm. Arch. 1850, p. 12S, ? . P./usculus, Forst. loi. cil. 

 1S51, p. 35, 6. 



? . Antennae with first joint of flagellum slightly longer than second ; 

 fifth decidedly longer than wide. Thorax rather short ; meso- and meta- 

 notum of equal length ; petiolar area nearly vertical, with its basal costa 

 entirely wanting. Abdomen moderately closely punctured and pubescent; 

 first segment narrow, very slightly widened to the spiracles, which lie 

 behind the middle and do not project, beyond them slightly more, but still 

 narrow at the apex. Terebra rather shorter than the first segment. 



Head black ; antennae brown, with extreme base of flagellum paler, 

 yellowish. Thorax dark chestnut brown. Abdomen with first segment 

 l)ale yellow ; second brownish ; the remainder black-brown. Legs yellow ; 

 femora brownish, with base and apex lighter ; outer side of tibiae also 

 witli a brownish tinge. Length, 2 mm. 



r^. Apterous. Head dark piceous or black, with the mandibles 

 except at apex red. Antennae dark castaneous, with the apex of the 

 scape and extreme base of flagellum fulvous ; basal flagellar joint only 

 slightly longer than the second ; fifdi less than twice longer than broad. 

 Pro- and meso-thorax piceous, metanotum black ; petiolar area with a 

 distinct costa which is centrally depressed and laterally acute. Scutellum 

 distinct. Abdomen closely punctate and pubescent to the apex, piceous ; 



