BRITISH ICHNEUMONS. 277 



in part, apices of hind femora, of their tibiae and the tarsi, infuscate ; c? 

 with coxae and trochanters flavous, anterior legs pale and the base of the 

 hind tibiae infuscate. Stigma ferrugineous, of S basally white ; radix 

 pale ; tegulae piceous or white. Length, 6 mm. 



Found at Hertford, in June (Stephens). Mr. Bignell lias taken this 

 species at Bickleigh, in Devon, towards the end of June ; it also occurs in 

 France and Belgium. 



5. parvulus, Grav. 



Ichiieuino)i parvulus, Gr. I. E. i. 591 ; Ste. 111. M. vii. 203, 9 ; cf. Wesm. Mem. 

 couron. Ac. Belg. 1S59, p. 72. Dicaelotus parvulus, Holmgr. Ichn. Suec. iii. 365 ; 

 Berth. Ann. Soc. Fr. 1S96, p. 342, ? ; Thorns. O. E. xv. 1621, d ? . 



Head triangular from in front ; cheeks longer than base of the piceous 

 mandibles, not buccate ; face centrally prominent, of $ sometimes with a 

 basal clypeal flavous fascia ; palpi pale ; frons remotely punctate. Antennae 

 infuscate ; flagellum basally ferrugineous and, in j , apically attenuate ; 

 scape of $, quadrately flavidous beneath. Thorax black \ mesopleurae 

 trans-strigose. Abdomen black with pale pubescence, beneath sub- 

 flavidous ; segments two and three punctate throughout with at least their 

 margins red ; post-petiole parallel-sided ; second segment broader than 

 long, gradually narrowed basally, with the gastrocaeli and thyridii wanting ; 

 terebra slender and not very shortly exserted. Legs red ; coxae, base 

 of trochanters, and sometimes apices of hind femora and tibiae black ; 

 anterior trochanters of $ sometimes flavidous. Radial cell somewhat 

 short ; stigma and tegulae piceous ; radix white. Length, 4 mm. 



It may be known by its small and compact form, its somewhat strongly 

 dilated and punctate post-petiole, which is half as long as the terebra, the 

 head strongly declived and narrowed posteriorly, and entirely black thorax ; 

 the female has the second segment transverse, somewhat dull and red, the 

 third with a large posterior mark ; the male has the mandibles and often 

 the whole clypeus black, the palpi and tegulae white, and the hind femora 

 and tibiae towards their apices somewhat broadly infuscate. 



This species is similar to D. pumilus in size, conformation, and in the 

 structure of the metanotum, but differs in colour and in having the second 

 and third segments transverse and strongly punctate throughout. 



Not common, found in June, near London (Stephens) ; captured at 

 Plym Bridge, late in May, and at Bickleigh, in Devon, early in June 

 (Bignell). Mr. Piffard has given me an example of this species, taken at 

 Felden, in Herts., and correctly named by Dr. Capron. On the Continent 

 it ranges from Austria to Sweden. 



6. pusillator, Grav. 



Ichneumon piisillator, Gr. I. E. i. 605, excl. i ; Ratz. Ichn. d. Forst. i. 135, excl. i, 

 Dicaelotus pusillator, VVe.sm. M6m. couron. Ac. Belg. 1859, p. 75; Berth. Ann. Soc. Fr. 

 1S96, p. 344, 9 . 



Head black ; mouth parts fulvous. Antennae half length of body ; 

 infuscate, with scajje beneath and flagellum towards its base red. Thorax 

 bkack ; petiolar area obliquely declived and centrally strongly excavate. 

 Abdomen with basal segment smooth and black, the following red- 

 margined ; anus acute ; terebra shortly exserted. Legs red, hind coxae 



