306 BRITISH ICHNEUMONS. \Cryptus. 



4. tarsoleucus, Schr. 



IchneuDion tarsoleucus, Schr. En. no. 725, i. Cryptus tarsoleucus, C>x. I. E. ii. 

 447 t'/ i. Siippl. 698; Ste. 111. M. vii. 277, i 9 ; Ratz. Ichn. d. Forst. iii. 135, 9 ; 

 Tasch. Zeits. Ges. Nat. 1865, p. 71 ; Thorns. O. E. v. 479 et xxi. 2350; Veil. Pinac. 

 pi. vi. f. 3, (J 9 . 



Head black, scrobes large, extending nearly to ocelli ; of $ with palpi 

 ferrugineous, facial orbits with centre of mandibles broadly, a transverse 

 line on clypeus, and rarely the external orbits, stramineous ; of $ with 

 the internal orbits obsoletely whitish and the epistoma prominent. An- 

 tennae of ? slender and filiform, of $ setaceous and much stouter. 

 Thorax of $ rarely with a flavidous callosity beneath the radix, the 

 apophyses normal and spiracles distinct ; ? with basal area entire and 

 basally convergent, and with both the metathoracic costae entire and 

 angular ; the basal costa of the $ is sub-obsolete and the apical less 

 angular. Scutellum black. Abdomen black, of S sometimes slightly 

 caerulescent or with the apical margin of the second segment castaneous ; 

 basal segment of ? laterally curved, superficially canaliculate, with weak 

 spiracles ; post-petiole sub-quadrate ; terebra not reflexed and a little 

 shorter than the abdomen. Legs red, coxae and trochanters black ; front 

 trochanters and coxae of S sometimes white-marked beneath ; both 

 sexes with hind tarsi centrally fulvous or white and hind tibiae of $ 

 often apically nigrescent. Wings darker in 9 J tegulae black, rarely 

 white- marked or entirely dull white ; nervelet of ? elongate. Length, 

 12-14 nm""- 



Both sexes of this species may be known by the coloration of the legs 

 and the deeply impressed frons between the scrobes. From C. curvicauda, 

 Thoms., which is by no means unlikely to occur in Britain, the $ differs 

 in the less distinctly white-marked orbits and vertical dot, its shorter post- 

 petiole, more strongly nitidulous nietathorax and straight terebra. 



This is by no means an uncommon species in May and early June, and 

 may sometimes be beaten from whitethorn flowers. It is also said to 

 occur upon umbels ; it is to be met with throughout the summer, and 

 I have found it in the New Forest as late as August. Stoke near Bristol 

 (Charbonnier) ; Knowle near Birmingham (Ellis) ; Lyndhurst (Chawner) ; 

 Brockenhurst (Cross) ; Guestling near Hastings (Bloomfield) ; Tostock in 

 Suffolk (Tuck) ; Kinghorn near Edinburgh, in May (Evans) ; Bloxworth, 

 in July (Richardson) ; Sunningdale, in June (Morice) ; Essex (Marwood) ; 

 Hastings (Hast. List.) ; Streatham and Norbury (Brunnetti). I have taken 

 it at Copdock and Sudbury in Suffolk, Wicken Fen and Mousehold Heath 

 near Norwich. I associate this species with Saints fitscus because they 

 are often found at the same time and place. Stephens, who records it as 

 not uncommon about London, especially Birch Wood and Ripley in June, 

 bred it from Noctuae ; and it has been bred from Trachea piriiperda and 

 AmmopJiila salnilosa by Panzer and Siebold, though its wide range argues 

 much commoner hosts. 



5. lugubris, Grav. 



Cryptus lugubris, Gr. I. E. ii. 456 ; Tasch. Zeits. Ges. Nat. 1865, p. 71, 9 ; Thorns. 

 O. E. xix. 21 15 et xxi. 2349, c? 9. 



$ . Black. Epistoma prominent. Antennae with joints seven to 

 eleven white. Thorax immaculate ; metathorax smoothest laterally at the 

 base, its basal costa bisinuate, the apical centrally obsolete ; apophyses 



