288 BRITISH ICHNEUMONS. 



mandibles not stout, distinctly bidentate with the upper much longer than 

 the lower tooth. Antennae filiform, inserted low on frons. Thorax 

 elongate, dorsally deplanate ; nitidulous and sub-glabrous throughout ; 

 mesosterna not excavate, their sulci very fine ; metathorax exareated ; 

 spiracles minute, circular, impressed. Scutellum somewhat large and very 

 flat. Abdomen cylindrical ; petiole short and broad ; post-petiole trans- 

 verse and laterally margined ; second segment with basal impression 

 entire ; thyridii small and transverse ; terebra apically truncate. Legs 

 somewhat broad ; intermediate coxae elongate, the hind ones simple. 

 Areolet incomplete ; nervellus as in Mevesia ; radial cell short and 

 complete. 



This genus is closely allied to Netiiatomicrus in its protuberant epistoma, 

 deplanate notum, exareated metathorax and glabrous frons, but differs in 

 its unequal mandibular teeth, abruptly declived metanotum, incomplete 

 areolet, laterally margined petiole and the conformation of the second 

 abdominal segment. 



I. Elliotti, sp. n. 



Head black ; palpi fiavous ; mandibles red ; face and clypeus glabrous, 

 with sparse puncturation ; frons a little coriaceous above the antennae. 

 Antennae piceous, with flagellar joints somewhat short, the eighth quad- 

 rate ; post-annellus large. Thorax entirely black ; meta- as long as the 

 meso-notum and of equal height ; metathorax with no costae nor areae, its 

 posterior face very short and abruptly declived. Abdomen not strongly 

 nitidulous, with large isolated punctures, black with incisures narrowly 

 sub-rufescent ; post-petiole glabrous with a few large punctures ; gastrocaeli 

 sub-obsolete ; terebra distinctly exserted. Legs piceous, with tarsi, tro- 

 chanters and anterior coxae, ferrugineous ; hind coxae with large, sparse, 

 superficial punctures. Radix, tegulae and stigma, testaceous. 9 . Length, 

 circa 3 mm. 



An example of this very distinct species was beaten from Finns sylvestris, 

 in which it was doubtless hibernating, in the Belstead Woods near 

 Ipswich, on i6th February, 1899; and there is another, probably from 

 Surrey, in Dr. Capron's collection. Its small size, perhaps, partly accounts 

 for our previous ignorance of it. 



To Ernest A. Elliott, f.e.s., etc., I dedicate this species in Liadequnte 

 Token of all I owe to his Guidance and Fellozvship in Entomological 

 Research ; and more especially of the Valuable Assistance without zvhich 

 the present volume could not have been compiled. 



TRIBE. 



ALOMYIDES. 



The position of this tribe has always been a moot point. Gravenhorst, 

 treating it of primary rank, places it immediately after his genus Trogus, 

 to which indeed the often basally tuberculate metanotum with its some- 

 what deep sulcus of the S allies it, though the scutellum is remarkably 

 deplanate, pointing out the while that the globose head resembles that 

 of the Xorides, as also do the elongate prothorax and deeply impressed 

 notauli ; nevertheless, the conformation of the wings and petiole differ 

 widely therefrom. Wesmael, in 1844, placed it, as an aberrant group, 



