20 BRITISH ICHNEUMONS. \CiibocephaIus. 



Table of Species. 



(6). I. Fions distinctly punctate ; terebra reflexed. 

 (3). 2. Head baccate beliind eyes ; frons sparsely 



punctate '. i. kok'IIPKS, Gniv. 



(2). 3. Head cubical ; frons closely punctate. 



(5). 4. Basal segment laterally curved ; areola 



entire ; orbits pale 2. NIORIVKNTRIS, Thorns. 



(4). 5. Basal segment laterally straight ; areola 



obsolete; orbits immaculate 3. liRKViCORNlS, Tasch. 



(i). 6. Frons sub-glabrous ; terebra straight 4. OVIVKNTRIS, 6'nex'. 



C. fortipes. C. fortipes. 



I. fortipes, Gmv. 



Cryptiis fortipeSf Gr. I. E. ii. 473. Cnhocephalns fortipes, Ratz. Ichn. d. Forst. ii. 122. 

 Piiygacieiion fortipes ,i:^s\\. Zeits. Ges. Nat. 1865, p. 52, 9 . Steiiocryptiis fortipes. Thorns. 

 O. E. vi. 605, i 9 . 



Black, somewhat shining and sub-glabrous. Head globose, sub-buccate 

 with the vertex broad, sub-quadrate and dilated behind the eyes ; palpi 

 testaceous, mandibles of ? mainly red ; frontal orbits white-marked, $ with 

 face or the inner orbits, the cheeks and the mouth white ; frons somewhat 

 sparsely and strongly punctate. Antennae of ? not quite half the length 

 of the body, piceous or ferrugineous, centrally incrassate and white-banded, 

 apically obtuse, infuscate, with basal flagellar joints dull ferrugineous ; of 

 $, black and setaceous, with the scape white beneath. Thorax cylindrical 

 and immaculate ; metathorax sub-rugose and somewhat dull, with the 

 petiolar area discreted ; the spiracular indicated in 9 , distinct and inflexed 

 in (?, with the spiracles circular-oval but small ; areola laterally entire 

 but confluent with the basal area ; apophyses wanting. Scutellum black. 

 Abdomen hardly narrower than the thorax, of $ deplanate and less 

 shining basally ; first segment deplanate and confluently punctate, gradu- 

 ally dilated in a straight line to the apex, with the post-petiole apically 

 castaneous-marked and in $ bicarinate ; the second quadrate with marginal 

 mark and sometimes another on the disc castaneous, in $ basally bicari- 

 nate ; the next two transverse and parallel-sided ; the remainder in the ? 

 narrowly clear-white margined ; terebra hardly shorter than the abdomen, 

 reflexed, with the valvulae black. Legs stout, and in 9 entirely dark red 

 or with the anterior infuscate ; $ with coxae black, the front ones, with all 

 the trochanters, white beneath, and apices of the hind femora and tibiae, 

 with all the tarsi, infuscate. Wings slightly clouded, radix testaceous ; 

 tegulae infuscate, of $ white. Length, 8-10 mm. 



The $ sometimes has the hind femora infuscate, their tarsi brown and 

 two white callosities before the radix. 



This species is very similar in conformation, colour and puncturation to 

 C. nigriveniris, but is larger with the head dilated behind the eyes, vertex 

 broader, frons more strongly and sparsely punctate ; the female has the 



