234 BRITISH ICGHNEUMONS. [ Catoglyplus 

into three subgenera in 1895; though usually acknowledged as genera, 
the distinctions are small and our species may here be treated in the 
broader sense.* 
Table of Species. 
(2). 1. Hind femora very strongly intumes- 
cent < e we .., 1. FORTIPES, Grave 
(1). 2. Hind femora normal, not or hardly 
incrassate. 
(4). 3. Vertex not excavate; Q flagellum 
tricoloured .. ee i .. 2. ANTILOPE, Grav. 
(3). 4. Vertex laterally excavate; flagellum 
not tricoloured. 
(6). 5. Costulae and occipital carina entire 3. DELUSOR, Zzzz. 
(5). 6. Costulae wanting; occipital carina 
interrupted .. > oe .. 4. FUSCICORNIS, Gmedl. 
1. fortipes, Grav. 
Mesoleptus fortipes, Gr. I. E. ii. 85; Ste. Ill. M. vii.225, ¢ ¢. Catoglyptus 
fortipes, Holmgr. Sv. Ak. Handl. 1855, p.106, pl. viii, fig. 2; Brisch. Schr. 
Nat. Ges. Danz. 1878, p.68; Thoms. O, E. ix.923,¢ 2. Var. C. crassipes, 
Holmgr. Sv. Ak. Handl. 1855, p.107, ¢ ?; C. grossipes, Thoms. O. E. ix. 
923, 3 ?. 
A little shining, finely punctulate and black. Head slightly constricted 
posteriorly ; mouth and face of ¢ entirely stramineous, former alone tes- 
taceous in 9; frons smooth ; clypeus depressed but not discreted basally, 
and apically subtruncate with deep lateral foveae; lower mandibular 
tooth the longer. Antennae filiform, not slender, distinctly shorter than 
body; red with scape and upper side of flagellum black, former in 
flavous beneath. Thorax stout, punctulate and pubescent, with almost 
wanting notauli; three distinct metanotal areae, areola sulciform and 
strong, dentiparal externally weak; spiracles large and oval. Scutellum 
convex and black. Abdomen deep red, nitidulous with first segment 
alone black; of 2 ovate, of ¢ fusiform; basal segment apically strongly 
explanate, basally linear, canaliculate between and subconstricted beyond 
the prominent central spiracles; terebra black, distinctly exserted and 
strongly reflexed. Legs incrassate, pale flavous; hind ones of ¢@ with 
coxae, trochanters and base of the bright red femora above, whole of 
their tibiae and tarsi, black; 9 with all coxae, trochanters, hind tibiae, 
their tarsi, and base of all the femora broadly, black; hind femora very 
strongly inflated. Radix stramineous, tegulae of ¢ apically concolorous ; 
stigma narrow and dark ferrugineous ; areolet wanting; nervellus inter- 
cepted below its centre. Length, 8S—11 mm. 
The peculiar manner in which the hind coxal flavescence runs beneath 
their femora is remarkable. The intumescent hind femora render this 
species unmistakable. 
This intumescence is only shared by C. crasszpes, which I cannot think 
is more than a form of the present species with the hind femora entirely 


* Tryphon iratus, Gr. (I.E. ii. 287, ¢) was recorded as British by Marshall in his 1870 Catalogue, 
but I do not know upon what authority. It is notin Mus. Brit. and he evidently had no personal 
acquaintance with it or he would not have left it, placed alphabetically, in that genus in 1872. Pfan- 
kuch tells us it is a Stiphrosomus, very closely allied to Catoglyptus antilope and synonymous with 
C. scaber, Brisch. (Schr. Nat. Ges. Danz. 1878, p.68, ¢). It is not known outside Germany and 
better omitted from our List. 
