308 BRITISH ICHNEUMONS. {Crypitis. 



Thomson mentions a $ with lateral white pronotal lines which extend 

 back to the humeri ; and lirischke found both sexes with the second 

 segment almost entirely red, and a female in which the whole abdomen, 

 excepting the petiole, was red. 



This species may be known by its entirely or partly white scutellum and 

 tegulae, evidently spinulose hind tibiae and small size ; the white hind 

 tarsal band of the $ is inconspicuous and often wanting. 



C. vidiiniorius is a very common species everywhere from May to 

 August on flowers and in the sweep-net ; it is said by Boie (Stett. Ent. 

 Zeit. xvi. p. 94) to possess the power of running on the surface of water 

 like a Hydroniefj-a (and perhaps TricJiocrypius cinciorws) ; he considered 

 it somewhat doubtfully parasitic upon Nonagria typhae ; and in France it 

 has been bred from Eupiihecia oxycedrata. It has been recorded from 

 Netley (Grav.) ; London and Salop (Stephens) ; Norwich (Bridgman) ; 

 Isle of Man (Walker) ; Essex (Harwood) ; Hastings District (Hast. List) ; 

 Whitsand Kay (Bignell) ; I have seen specimens from Felixstowe, taken by 

 Hocking; Shotover and Bovey Tracey by Hamm ; Abinger Hammer by 

 Butler ; Scarborough by Elliott ; Plumstead by Beaumont ; Lyndhurst by 

 Adams; Lynton by S. Edwards; Guernsey by Luff; Felden by Piffard ; 

 Monks' Wood and Mablethorpe by Thornley ; Barmouth by Yerbury ; 

 Deal by W. Saunders ; Kingsdown and St. Margaret's by Sladen ; and 

 Share by Capron. I have taken it at Upware in Cambs. in June ; at 

 Barnby Broad and at Farnham in Suffolk ; and Chitty at Kingsdown and 

 Huntingfield in Kent, in August. 



7. sponsor, Fab. 



Ichneumon sponsor. Fab. E. S. ii. 153, 9- Cryptus sponsor. Fab. Piez. 83 ; Gr. I. 

 F. ii. 554 et i. Suppl. 704 ; Ste. 111. M. vii. 2S8 ; Tasch. Zeits. Ges. Nat. 1865, p. 85, 

 ? ; Voll. Pinac. pi. vi. f. 6, J ; Tschek, Verb. z.-b. Ges. 1870, p. 119 ; Thorns. O. E. v. 

 480, $ '^ ; cf. lib. cit. xxi. 2351 (nee Ratz.). C. quadrilinealus, (Jr I. E. ii. 535 ; Ste. 

 III. M. vii. 285, $. Var. C. filieornis, Kalz. Ichn. d. Foist, i. 141, ?. C. atlentoiijis, 

 Tasch. Zeits. Ges. Nat. 1865, p. 79, excl. ?. 



Black, somewhat shining, with white pubescence. Head with clypeus 

 apically deflexed and slightly rounded, frons impressed with a central 

 sulcus ; of 9 with cheeks somewhat short and sub-buccate, and frontal 

 orbits narrowly white ; of $ v/ith mandibular spots, centre of face, whole 

 facial orbits and part of external, white. Antennae black, of $ with 

 central flagellar joints white. Thorax usually with white pronotal fascia ; 

 $ also with a spot on mesonotum, two triangular and often basally con- 

 fluent marks in the petiolar area, a callosity before and line beneath radix, 

 white ; metathorax shining, rugosely punctate ; juxtacoxal areae distinct, 

 the lateral broadest in centre of metapleurae, in $ before their centre ; 

 both transverse costae distinct ; petiolar area small and sub-hexagonal, 

 basally sub-arcuate ; apophyses distinct but not stout, spiracles linear. 

 Scutellum of 9 black, of $ apically white. Abdomen very finely aluta- 

 ceous, ovate-fusiform in ? , and sub-linear in $ ; castaneous, in ? with 

 base or whole of first segment black ; basal segment of 5 gradully dilated 

 with post-petiole sub-quadrate, of $ laterally straight and hardly explanate 

 apically, convex and nitidulous ; terebra longer than half abdomen, spicula 

 red. Legs sub-elongate, red ; coxae entirely castaneous or black-marked ; 

 trochanters and apices of hind femora and tibiae nigrescent ; posterior 

 and sometimes part of front tarsi, and of the anterior femora, infuscate ; $ 



