BRITISH ICHNEUMONS. 67 



14. Gravenhorsti, Fonsc. 



Ichueuinon Gravenhorsti, Fonsc. Ann. Soc. Fr. 1846, ? ; Berth, lib. cit. 1895, p. 261, 

 9 (? (J ). /. fabricator, varr. 12 et ? II, Wesm. Bui. Ac. Brux. 1848, 9 • /. gramiiceps. 

 Thorns. Ann. Soc. Fr. 1887, p. 13, 9. Cratichneunion graiidiceps, Thorns. O. E. xviii. 

 1953. ? • 



This $ very closely resembles C. fabricator, especially in the punctu- 

 ration of the posterior coxae, but differs therefrom in the head, which is 

 distinctly longer behind the eyes, the slightly stouter antennae, of which the 

 second joint of the flagellum is quadrate, and in the red abdomen, the base 

 of which alone is black. In structure, size and colour it is very similar 

 to C. fugitivus, from which the hardly attenuate antennal apex, short 

 post-annellus, which is scarcely longer than broad, all the tibiae semi- 

 annulated with white, and the large and conspicuous coxal scopulae, will 

 distinguish it. 



Berthoumieu describes a $ as doubtfully appertaining to the present 

 species. It has the mandibles red, the palpi white ; clypeus, face, frontal 

 and dots at external orbits, lines before and beneath the radix and some- 

 times two large oval dots on the scutellum, flavidous-white. The scutellum 

 is, perhaps accidentally, canaliculate throughout longitudinally. Clypeus 

 apically truncate with a little tooth in the centre. Antennae piceous, 

 ferrugineous beneath. Areola transverse, hexagonal, and apically emargi- 

 nate. Stigma and tegulae fulvous. Legs black ; anterior femora, tibiae 

 and tarsi red. Abdomen elongate-elliptic, broader than that of C. fabricator, 

 with the post-petiole finely rugose-aciculate centrally ; segments two to 

 seven, and the first apically, red more or less infuscate dorsally. Length, 

 9-12 mm. 



That the present insect is more than a variety of C. fabricator is certainly 

 improbable, the only good character appearing to be the posterior con- 

 formation of the head. 



It is doubtless common but mixed with its allies in Britain, whence it 

 has not previously been recorded. Miss Chawner has taken examples in 

 the New Forest with both red and black hind legs ; Doctor Wratislaw 

 captured it near Bury St. Edmunds ; and I have found it on flowers of 

 Heracletivi spondylium and in gardens at Lyndhurst from 7th to 23rd 

 August. It was extremely likely to occur with us, since it has been 

 recorded from southern Sweden and France. 



15. albilarvatus, Grav. 



Ichneumon albilarvatus, Gr. Mem. Ac. Sc. Torin, 1820, p. 352 ; I. E. i. 563, i ; Ste. 

 III. M. vii. 198 ; Wesm. Nouv. M6m. Ac. Brux. 1S44, p. 106 ; Thorns. Ann. Soc. Fr. 

 1887, p. 16 ; Berth, lib. cit. 1S95, p. 280, i 9 . C)-atichneumon albilarvatus, Thoms. 

 O. E. xviii. 1953, 6 9 . 



? . Head black with the frontal orbits black and a dot at the facial 

 orbits near the antennae pale red, flavescent, or sometimes wanting. 

 Antennae stout, filiform, hardly attenuate towards the apex, with a white 

 band. Thorax stout, black ; Wesmael describes the metathoracic spiracles 

 as somewhat short and elliptic, but Thomson (in Ann.) says they are large 

 and oval ; upper lateral areae sub-discreted ; areola semi-oval, apically 

 strongly bordered. Scutellum red, black with the disc reddish, or entirely 

 black, sometimes with a red line behind it. Abdomen oblong-ovate, 

 entirely red with the first segment only black ; the post-petiole is centrally 



