38 BRITISH ICHNEUMONS. {Diaparsui 



slightly reflexed. Legs testaceous ; anterior coxae basally and rarely 

 entirely, sometimes and especially in $ the femora also basally, black ; 

 hind legs black with tibiae and femoral apices, sometimes also tarsi, 

 rufescent. Wings slightly clouded, with the broad stigma nig-rescent, 

 tegulae rufescent and branch of the radial cell somewhat short. Length, 

 6 mm. 



This species and D. niitritor have the head broad, the antennae at 

 least 25-jointed and the hind femora dark; the present may be recognised 

 by its elongate terebra, infuscate abdomen and the short branch of the 

 radial alar cell. 



At present only known from England, France and Belgium. Bignell, 

 so lately as 1898, records Porizon erythrostoimis, Gr., from Bickleigh in 

 Devon, Qth July, on Bridgman's authority. Thomson described it from 

 England. Certainly rare with us and hardly likely to be overlooked in 

 its stout conformation, elongate terebra and centrally bright red abdo- 

 men ; I have only taken four males upon two occasions on white poplar 

 in the Bentley Woods at the end of May, 1900 and 1902. \\\ Capron's 

 collection is another male, which has the postpetiole malformed and very 

 large spiracles, together with four females, only one of which has the 

 hind femora dark ; these are from Surrey. 



4. nutritor, Fah. 



Ophion nutritor, Fab. Piez. 1804, 139; Gr. Nov. Act. Acad. 1818, p. 297. Ich- 

 neumon nutritor, Thnnh. Bull. Acad. Petersb. 1822, p. 2fi3 ; Mem. 1824, p. 316. 

 Porizon nutritor, Gr. I.E. iii. 762, i ? . Diaparsus nutritor. Thorns. O.E. xiii. 

 1373, 3 ? . 



Head with the vertex broad and not posteriorly constricted; frons dull, 

 densely and finelv punctate ; temples nitidulous and cheeks subbuccate ; 

 clypeus and mandibles rufescent with upper tooth of latter the longer. 

 Antennae elongate with at least 30 flagellar joints, of which the basal are 

 distinctly discreted and the first little longer than the cylindrical second ; 

 scape usually rufescent beneath ; flagellum of 9 filiform and of (J apic- 

 ally subattenuate. Thorax densely pubescent and almost dull with 

 distinct notauLi ; metathorax finely and rugulosely punctate with basal 

 area elongate-quadrate ; pleurae somewhat shining, diffusely punctate 

 above, with lateral sulci superficial. Abdomen fusiform with first seg- 

 ment black and remainder testaceous with second usually piceous and 

 the following generally indefinitely infuscate laterally ; basal segment 

 somewhat broad and longitudinally sulcate ; terebra as long as abdomen. 

 Legs rufescent with coxae black and the front one apically or entirely red ; 

 hind femora usually nigrescent with only their extremities red. Wings 

 slightly clouded with tegulae ferrugineous or black and radial cell as long 

 as the incrassate, nigrescent stigma with its branch extending nearl\' to 

 apex of wing ; radius emitted beyond centre of stigma and recurrent 

 nervure nearly continuous. Length, 6-7 mm. 



Distributed throughout most of Europe and bred by Dr. Giraud from 

 Balanintis villosiis (Ann. Soc. France, 1877, p. 403). It has long stood in 

 the British list, but there are no records of localities and I have not met 

 with this species. 



