44 BRITISH k:iiNEUMONS. [Microcrypius. 



and mouth, in its transverse and rufocaslaneous second and third seg- 

 ments, and in the conformation of the petiolar area. The $ differs from 

 all its allies in the pale-marked face, scutellum and post-scutellum ; and 

 both sexes are abundantly distinct in the apically produced clypeus, which 

 in the S takes the form of a tooth and in the ? of a spine. 



I know of no records of this species, which was introduced as British 

 by Marshall in 1870, on the strength of three males from Leicester; it 

 appears to be not very rare with us, and widely distributed on the Con- 

 tinent, where (iravenhorst took it in September. The only sex I have 

 captured is the male, while staying with the late Mr. Alfred Beaumont at 

 Gosfield, in Essex, in July, 1902, and on Angelica flowers at Barton Mills ; 

 Tuck has found it at Aldeburgh and W. Saunders at Greenings. The 

 only female I have seen was taken by Chitty at Catterick Bridge, near 

 Richmond, in Yorkshire, in the autumn of i88g. 



18. larvatus, Grav. 



Phygadetion larvatus, Gr. I. E. ii. 662 ; Ste. 111. M. vii. 297 ; Tasch. Zeits. Ges. Nat. 

 1865, p. 33, 6. 



Head black, with mouth, clypeus, facial spot, and the internal orbits 

 broadly, white ; the clypeus narrow and discreted, apically produced into 

 an obtuse point. Antennae incrassate and setaceous, with scape white 

 beneath. Thorax black, with grey pubescence ; two dots at the radix, and 

 two upon the scutellum, white ; metathorax rugulose, with complete areae ; 

 areola hexagonal, not longer than broad, with its angles obtuse ; apophyses 

 very small. Abdomen stout, somewhat narrower than the thorax ; black, 

 with segments two, three, and the basal half of the fourth, red ; basal 

 segment short and broad, gradually explanate towards the sub-intumescent 

 apex, carinate, with no tubercles ; post-petiole quadrate, canaliculate and 

 red-margined ; the three following segments equilateral, the second smooth. 

 Legs red ; the anterior paler, with the coxae and trochanters white ; hind 

 pair with the calcaria white, and the coxae, apices of the trochanters, of 

 their tibiae and of femora, black, their tarsi infuscate. Wings slightly 

 clouded ; radix and tegulae white. Length, 8 mm. 



This male, which appears allied in its produced clypeus to AI. cretatus, 

 is not placed by Thomson ; Gravenhorst draws attention to the convex 

 and stout abdomen with its broad and short petiole. Might it not be 

 sought for among the sub-petiolate Tryphofii?iae ? 



Stephens first noticed it in Britain, uncommonly about London, in 

 June ; and it is recorded from Battle, in " The Natural History of 

 Hastings." 



19. basizonius, Grav. 



Phygadeiton basizoints, Gr. I. E. ii. 748, 9. P. p/eroiionini, Hart. Jahresb. 1837, 

 p. 273 ; Ralz. Ichn. d. Forst. i. 145 ; ii. 125 ; Tasch. Zeits. (ies. Nat. 1865, p. 46, ^ 9. 

 Microcryptiis basizonius. Thorns. O. E. ix. 863, (J 9. Var. Cry plus varicolor, Gr. I. E. 

 ii. 603 ; P. pteroiioruin, var. 2, Tasch. Zeits. Ges. Nat. 1865, p. 46, i . (?) Var. 

 P. abdoiiiinator, var. I, Gr. I. E. ii. 727 ; P. pro/ligator, var. 5, Grav. lib. cil. 732 ; 

 P. pleronouiin, var. 3, Tasch. Zeits. Ges. Nat. 1865, p. 46, i ; (?) P. coinmulalus, Ratz. 

 Ichn. d. Forst. ii. 125, 9. 



Head with cheeks buccate, clypeus narrow and discreted ; ? with eyes 

 sparsely pubescent and frons finely punctulate ; c^ with facial orbits 

 broadly white Antennae of c^ setaceous, with scape testaceous beneath 



