32 BRITISH ICHNEUMONS. {Porizon 



4. angustipennis, Holmgr. 



Porizon angustipennis, Holmgr. Sv. Ak. Handl. 1858, p. 133; Brisch. Schr. 

 Nat. Ges. Danz. 1880. p. 192, ? . P. (Cratophion) angustipennis, Thorns. O.E. 

 xiii. 1363, ,j ? . 



Head transverse, finely punctate and pubescent, posteriorly somewhat 

 constricted. Thorax nearly thrice longer than high, cylindrical and 

 finely punctate; metathorax, at least of 9) somewhat smooth discally or 

 only finely and sparsely punctate. Abdomen centrally red ; basal seg- 

 ment subgeniculate with no longitudinal discal sulcus, lateral sulci 

 distinct ; postpetiole subglabrous ; exsertion of terebra as long as post- 

 petiole and reflexed above anus. Legs red with coxae of 9 infuscate- 

 marked and of J* nearly entirely black. Wings narrow and slightly 

 infumate, with the stigma not very broad. Length, 5-7 mm. 



This species is very like P. gravipfs, but the head is posteriorly con- 

 stricted, the metathorax smooth or only diffusely punctate above, the 

 basal segment with no sulci though its lateral furrows are distinct, post- 

 petiole not aciculate, the legs are paler and the size usually smaller. The 

 $ resembles P. harpunis, though differing in its smoother metathorax 

 and shorter petiole, and is easily distinguished by its longer and apically 

 attenuate antennae, with more convex scutellum. 



Sweden, Prussia, etc. With us it is certainly uncommon, and I have 

 not met with the female, though several males were netted on the wing 

 at Lyndhurst, Matley Bog and Pondhead in the New Forest, early in 

 August, 1901 ; Tuck took one in Finborough Park in Suff"olk, towards the 

 end of the preceding August ; and two more were secured on the flowers 

 of ^;/^e7/az at Foxhall, near Ipswich, on 5th and 25th of the following 

 September. 



5. claviventris, Grav. 



Ichneumon bcllator, Miill. Prodr. 1776, p. 158; Gr. I.E. iii. 995 (?). Porizon 

 claviventris, Gr. lib. cit. 755; Zett. I.L. 397; Ratz. Ichn. d. Forst. iii. 91; 

 Holmgr. Sv. Ak. Handl. 1858, p. 133; Ruthe, Stett. Ent. Zeit. 1859, p. 379, ?. 

 P. (Barycneniis) claviventris, Tboms. O.E. xiii. 1364, g ? . 



Head posteriorly constricted, with vertex elevated and somewhat 

 broad; cheeks short and frons not glittering; mandibles and apex of 

 clypeus dull red, the latter smooth and broadly rounded. Antennae of 

 9 slightly incrassate towards their apices. Thorax elongate, nearly 

 thrice longer than high, with the pleurae finely punctate above and 

 subnitidulous ; metathorax rugosely punctate, with basal area of ^ 

 usually very narrow ; petiolar area not extending to centre. Abdomen 

 claviform and laterally subcompressed, with the central and sometimes 

 also the apical segments obsoletely rufescent; basal segment, especially 

 of 9 ) short and stout ; second longer than broad ; terebra short and 

 reflexed. Legs red with the anterior coxae basally, and hind ones 

 entirely, black; hind femora often infuscate and their tibiae in 9 almost 

 shorter than the metatarsi. Wings slightly infumate with stigma nigrescent, 

 tegulae piceous and apical abscissa of radius double length of the basal. 

 Length, .<}.mm. 



