252 BRITISH ICHNEUMONS. [Srzcudtts. 



men black, smooth, shining, deplanate-cylindrical, narrower than and 

 double length of the thorax, of $ sometimes only half its breadth and 

 apically subcompressed, elongate ; four basal segments fulvous with the 

 base of the first, and in 9 the fourth except basally, black ; first segment 

 basally bicarinate with prominent spiracles, twice longer than broad with 

 diffuse discal punctures; remainder finely and diffusely punctate, with the 

 second and third segments longer than broad; terebra a little longer than 

 the body or nearly double the length of the abdomen. Legs somewhat 

 slender, fulvous ; hind ones usually entirely black, of ^ with the tibiae 

 basally and more or less of the tarsal joints basally stramineous ; anterior 

 coxae and trochanters black, in ^ flavous beneath. Wings of $ 

 hyaline, of 9 slightly clouded ; stigma black or piccous ; radix and J 

 tegulae stramineous, latter in 9 black ; areolet elongately petiolate ; 

 radial ner\-ure curved throughout ; nervellus intercepting below the centre. 

 Length, g — lo mm. 



Gravenhorst mentions a variety of both sexes which is rather smaller 

 with the hind femora red, the 9 with the internal orbits very narrowly 

 flavous and the hind tibiae rufescent before their base, and both sexes 

 with the four basal segments entirely pale red. 



It is said by Thomson to be similar to the 9 of Syziuctiis apicalis in its 

 size, conformation and subinfumate wings, but the thorax is more strongly 

 punctate, the post-petiole red, the terebra longer and especially differing 

 in the frontal horns. 



This species is said to occur on umbelliferous flowers in northern and 

 central Europe at the end of June and beginning of July, but is every- 

 where rare. As British it rests upon the assertion in 1856 by Desvignes 

 that it was represented in Mr. Marshall's collection ; but ^larshall had 

 many foreign insects there. It should, however, occur with us since 

 Thomson has found it at Lund and Tosquinet in Belgium. 



PROCINETUS, Fm'&tev. 



Forst. Verb. pr. Rheinl. 1868, p. 167; Heterolabis, Kriech. Ent. Nachr. 1889, 

 p. 18. 



Areolet entire ; metathoracic spiracles large and elongate ; nervellus 

 strongly postfurcal and intercepting far above the centre ; hypopygium 

 large, compressed and prominent ; metathorax closely rugose punctate 

 with no trace of areae, and even the basal carina of the petiolar area 

 wanting ; nervelet of the wings distinct ; hind legs conspicuously thicker 

 and larger than the anterior ; claws not reaching beyond apices of the 

 pulvilli; abdomen centrally red. 



We may certainly accept Procinetus as a good genus on account of the 

 height at which the transverse anal nervure of the hind wing is intercep- 



