JJ38 ICHNEUMONID^E. 



petiolate ; basal nervure continuous through the median, second 

 recurrent continuous with the external nervure of the areolet ; 

 nervellus intercepted distinctly below its centre. 



Length 7 millim. ; terebra 2 millim. 



CEYLON : Kandy (E. E. Green). 



Genus SCOLOBATES, Grav. 

 Scolobates, Gravenhorst, Ichn. Eur. ii, 1829, p. 357. 

 GENOTYPE, Ichneumon auriculalus, F. 



Head very smooth, buccate posteriorly, with the vertex deeply 

 emarginate and the cheeks large ; clypeus hardly discrete basally, 

 its apex dentiformly produced centrally ; mandibles stout and 

 bidentate, with the teeth of equal length ; eyes entire and not 

 small. Antennae filiform and fully as long as the body, with their 

 apices subattenuate ; scape obliquely truncate apically. Meta- 

 notal areae wanting ; spiracles oval. Abdomen petiolate, more or 

 less compressed laterally ; basal segment deplanate and straight, 

 parallel-sided, with the spiracles before its centre ; terebra short 

 and not extending beyond the anus. Hind legs longer and stouter 

 than the front ones, with bicalcarate tibia3, more or less incrassate 

 tarsi and closely pectinate claws. Areolet wanting. 



Range. North and Central America, Europe, Himalayas. Erro- 

 neously recorded from New. Zealand. 



This species is, I think, best recognised by the peculiarly large 

 and shining head, its centrally produced clypeus and distinctly 

 compressed abdomen. Originally its main feature was the iu- 

 crassate hind tarsi, and this is very conspicuous in certain species, 

 though but feebly developed in the Indian ones ; on account of it 

 and the compressed body this genus was thought at first to be 

 allied to Anomalon and it was even retained in the OPHIONINJS by 

 Holmgren in 1858, though in the aberrant group of the BAN- 

 CHIDES, with which it obviously has nothing in common. It 

 certainly belongs to the Ctenopelmid group of the TBYPHONIN^E 

 and is somewhat closely allied to Euceros, Grav., the species of 

 which have, like it, been bred from Lepidopterous hosts. Scolo- 

 lates is also said to prey upon Syrphid flies and TEXTIIBEDINID-E ; 

 but cf. Bassus Icetatorius (p. 278). 



Table of Species. 



1 (2) Testaceous, with black markings ; nervellus 



geniculate below centre testaceus, ep. n. 



2 (1) Black, with red markings ; nervellus geniculate 



at its centre auriculatus, F. 



