288 BRITISH ICHNEUMONS. [ Monoblastus 

do not know how this species came to be included in our former 
catalogues, unless on account of three males in Desvignes’ collection ; no 
earlier record is available than the description of Bridgman, who sub- 
sequently himself found the species at Earlham, near Norwich. 
5. longicornis, Holmgr. 
Monoblastus longicornis, Holmgr. Sv. Ak. Handl. 1856, p. 387; Brisch. Phys. 
Ges. K6énig. 1871, p.91; Schr. Nat. Ges. Danz. 1878, p.96; Thoms. O. E. ix. 903 ; 
Kriech. Progr. Gymn. Pola, 1894, p.18, g ¢. 
Somewhat shining, punctulate and black. Head subtumidous and 
hardly constricted posteriorly ; frons deplanate and subremotely punc- 
tate, centrally subsulcate; face punctate, pubescent and not elevated, 
flavous or in ¢@ usually black ; clypeus not centrally discreted, subrugose, 
a little convex centrally, black and often pale-marked; cheeks of 
6 not flavous. Antennae slightly longer than body, filiform and 
piceous with flagellum infuscate ferrugineous, often testaceous beneath. 
Thorax longer than high; mesonotum sparsely punctulate with obsolete 
notauli; pleurae punctate ; metathorax shining and obsoletely punctate - 
with five very distinct areae, of which the areola is rectangular and twice 
longer than broad. Scutellum black and convex. Abdomen somewhat 
longer than head and thorax, red with the first segment black and the 
fifth to seventh sometimes infuscate; basal segment subelongate, basally 
a little narrowed, shining, pubescent and apically subdilated, with very 
fine carinae extending beyond its centre; second quadrate and not black- 
marked; venter flavous, terebra very short and pilose. Legs normal and 
red with coxae and most of trochanters black; hind tarsi apically hardly 
infuscate with all femora red; anterior tibiae externally flavous ; tarsal 
claws, especially anterior, distinctly pectinate. Wings subample; stigma 
infuscate, radix and tegulae flavous; areolet petiolate and entire, 
emitting recurrent nervure from its apex; radial nervure apically sub- 
reflexed; nervellus intercepted below its centre. Length, 7—8 mm. 
Recognised by the distinct griseous pilosity of head and thorax, the 
elongate basal segment and centrally subdilated epicnemia. Holmgren 
originally described the @ face as black, and the femora as immaculate 
red; Bridgman’s male JZ. Caproni differs in little but its pale face and 
cheeks, and the mainly black femora; I have a certainly co-specific 9, 
named JZ. dongicornis by Dr. Brauns, with black femora and should have 
synonymised it with this species had not Pfankuch considered the latter 
distinct from JZ. chrysopus in 1907. 
Southern Sweden and Prussia, etc., widely distributed on the Continent, 
extending to Holland and France. It has not before been noted in 
Britain, and I can instance but a single example, captured by myself by 
sweeping long grass on the bank of the River Alde at Farnham in Suffolk 
on 24th July, 1899. 
POLYBLASTUS, Hartig. 
Htg. Wiegm. Archiv. 1837, p. 155. 
Head subtransverse and generally tumidulous with the vertex broad, 
emarginate and discreted from occiput by carina; face subquadrate, longi- 
tudinally elevated centrally and usually pilose; clypeus convex and deeply 
