Diaparstis] BRITISH ICHNEUMONS. 37 



An uncommon species in central Sweden, occurring also in Germany. 

 Marshall first discovered the male, which he says differs only sexually 

 from the female, and introduced the species as British (Ent. Ann. 1874, 

 p. 144) from Darenth Wood in Kent. I took a sin<,de typical female with 

 unicarinate metanotum on bracken at the Wilverly Inclosure in the New 

 Forest on qth July, 1009. Another female, swept at Farnham in Suffolk 

 on 6th June, iqoo, and three in Capron's Surrey collection, I cannot con- 

 sider distinct, though the basal metanotal area is entire and terebra a 

 trifle shorter. During June, iqoq, Atmore took a verv large but other- 

 wise quite typical female of six and a half millimetres at Kings Lvnn in 

 Norfolk. 



2. versutus, Holnigr. 



Porizon mitiator, Gr. I.E. iii. 768, ?; Zett. I.L. i. 1838, 396, <f (?). Thersi- 

 loclius vcrsiitns, Holmgr. Sv. Ak. Haiidl. 1858, p. 141, j ? . Diaparsus versutus. 

 Thorns. O.E. xiii. 1376, s 9 . 



Head somewhat shining, almost narrower than thorax, hardly con- 

 stricted posteriorly, with the vertex broad, mandibles centrally flavous 

 and clypeus apically rufescent. Antennae infuscate and paler beneath 

 with the three or five basal joints entirely testaceous ; flagellum of 9 

 22-jointed and of (J 27-jointed. Thorax stout with the basal area indis- 

 tinct; mesopleurae somewhat shining and finely punctate. Abdomen 

 testaceous and laterallv compressed with basal segment black, the second 

 usually badious and the following laterally, rarely also discally, infuscate 

 and the ^ anus not infrequentlv nigrescent; first segment a little longer 

 than hind coxae and trochanters, in 9 nearly straight and finely acicu- 

 late ; postpetiole smooth and shining ; second segment longer than broad ; 

 terebra longer than abdomen and nearly straight. Legs testaceous with 

 the hind coxae and femora nigrescent, their tarsal joints and sometimes 

 the anterior coxae infuscate. Wings infumate with stigma piceous, 

 tcgulae flavidous and radius apically straight. Length, 3-4 mm. 



Thomson says it ranges through north and central Europe, though it is 

 absent from most lists ; Boheman first took it sparingly in southern 

 Lapland during the middle of August. Bridgman took it at Earlham 

 near Norwich in August and September; and Bignell records Porizon 

 minator, Gr., from Exeter, where it was captured on 2nd September. 



3. erythrostomus, Grav. 



Porizon crytlirnstotinis, Gr. I.E. iii, 760, c^ 9 . Diaparstis cr\tlirostomtis. 

 Thorns. O.K. 'xiii. 1374, ? . 



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

 and finely punctate, with temples nitidulous and cheeks subbuccate ; 

 mouth rufescent. Thorax dull and finely pubescent with distinct notauli ; 

 metathorax rugosely punctate with basal area elongate-quadrate. Abdo- 

 men black with the second segment laterally and usually also the three 

 following rufescent, or in 9 t'lc second segment alone red ; basal seg- 

 ment slender and in (5 sublinear, with posli^etiole of 9 ^ little longer 

 and in ^ twice as long as broad ; terebra longer than abdomen and 



