304 BRITISH ICHNEUMONS. {Exetastes. 



8. calobatus, Gvav. 



Exetastes calobatus, Gr. I. E. iii. 405, ? ; Bridg. Entom. 1878, p. 36, S . 



A large, black species with red hind coxae and femora. Head dull and 

 scabrous throughout, somewhat narrowed behind the eyes ; face some- 

 what coarsely punctate and pubescent, slightly elevated longitudinally in 

 the centre and in the 5' with the lower orbits broadly, whole of the nar- 

 row clypeus, mandibles except their subacuminate and infuscate teeth, 

 flavous ; its palpi and ligula red. Antennae slender, subsetaceous, imma- 

 culate, as long as the body in 9 'i^d one fifth longer in (^ ; scape with 

 griseous pilosity. Thorax subcylindrical and dull with the notauli discally 

 conspicuous ; metathorax rugulose and more or less conspicuously canali- 

 culate in the centre ; petiolar area very short and basally incomplete ; 

 lateral costae strong but with no apophyses; spiracles sublinear. Scutellum 

 convex and distinctly punctate, black ; of J' with two apical ilavous dots. 

 Abdomen narrower and a little longer than the head and thorax, immacu- 

 late, fusiform and apically subcompressed ; basal segment nearly thrice 

 longer than broad and gradually slightly explanate apically, with spiracles 

 just before its centre and sparse but distinct puncturation to its apical 

 third, thence glabrous ; J valvulae conspicuous ; terebra stout and nearly 

 as long as the basal segment. Legs slender and fulvous-red ; anterior of 

 9 with the distinctly and evenly punctate coxae and trochanters black 

 and the tarsi apically infuscate ; front coxae of J flavidous ; hind legs 

 elongate and stouter with the tarsi, tibiae and apices of 9 femora black, 

 and the pilose trochanters more or less infuscate ; tarsal claws strongly 

 curved and not pectinate. Wings very slightly clouded ; stigma, radius 

 and 9 tegulae black, J' tegulae flavidous ; radix dull ferrugineous ; areo- 

 let irregularly triangular and subsessile; first recurrent nervure of the lower 

 wings curved and emitting the nervcllus from far above its centre. 

 Length, i2i— -13 mm. 



This species is similar to E. fornicator, but is distinguished by the more 

 slender thorax and antennae, differently coloured legs, and by the nar- 

 rower basal segment, the peculiar puncturation of which is very distinctive. 

 It is correctly ascribed to this genus. 



No one appears to have noticed this insect, since two females were 

 described from Piedmont and Netley in Shropshire by Gravenhorst, till 

 Bridgman took the J in 1878. I possess a carded example of both sexes 

 in Capron's collection, which were in all probability given him by Bridg- 

 man, since they have been pinned. From them I have been enabled to 

 draw up the above somewhat full description of this interesting species. 

 The males were found at Karlham near Norwich in September ; and Big- 

 nell subsequently took this species, which appears to be very scarce with 

 us, at Trcw, near Crediton, in Devon, as late as 14th October. 



