Descriptions of Neiu S'pccics of Parasitic Hymcnoptcra. 151 



hyaline, spotted. Antennae ringed with white, not greatly dilated at 

 the apex. The 3' offers no essential differences. 



This genus should be known by the total absence of the parapsidal 

 furrows. The abdominal petiole is long and slender and is not 

 much dilated at the apex ; it is as long as the following two segments 

 united. The radial cellule is long and narrow, reaching to the apex 

 of the wings. On the centre of the apex of the clypeus, in the ^ , is 

 ii small tubercle. There is no metapleural keel along the lower 

 edge ; but there is an oblique plate-like one bordering the apex of 

 the middle coxae. The hind legs are greatly lengthened. The 

 ovipositor in the known species is short. Temples wide, oblique. 

 The sides of the median segment at the apex are broadly rounded. 

 There is a triangular fovea on either side of the base of the post- 

 scutellum. The last joint of the hind tarsi as long as the third. 

 There are no transverse keels on the metanotum. In the most 

 recent arrangement of the Mesostcnini, namely that of Dr. Schmiede- 

 knecht. Opus. Ichneum., 560, this genus would come nearest to 

 Crypturopsis, as it does also, through the shortness of the thorax, in 

 that of Ashmead, Bull. U.S. Nat. Mus., xxiii., 44. Crypturopsis is 

 ixn American genus. 



Cryptaulax ruficeps, sp. nov. 



Black ; the head red, the apex of the fifth, the sixth to ninth, and 

 the base of the tenth antennal joint, clear white ; the antennal scape 

 red. Wings hyaline, iridescent, there is a large cloud extending 

 from the commencement of the transverse basal nervure to the com- 

 mencement of the radius, where it is roundly narrowed ; there is a 

 cloud of similar size at the apex, commencing at the base of the 

 iipical third of the radius ; both are distinctly violaceous in tint. J 

 and 3 . 



Length 14 mm. ; terebra 3 mm. 



Natal. Malvern. 



Face closely, but not strongly punctured ; the top of the clypeus 

 punctured ; the centre flat, furrowed below, the furrow leading into 

 the projecting apical tooth. Front and vertex smooth ; the former 

 keeled down the centre ; the part above the hollow and below the 

 ocelli is obliquely striated. Inner orbits distinctly margined above. 

 Mesonotum closely, somewhat strongly punctured — reticulated, 

 towards the apex in the centre striated. The scutellum shining, 

 somewhat strongly, but not closely punctured. Median segment 

 closely, strongly reticulated. Pro- and mesopleurae closely, strongly 

 longitudinally striated ; the latter more closely below than above. 



