BRITISH ICHNEUMONS. 27 



the much finer punctation of the whole insect, the entirely black scutellum, 

 and the white tibial band. 



From C. fuscipes it is easily recognised by its duller reflection, finer 

 punctuation, by the upper antennal scrobes which rise much higher towards 

 the vertex, the longer joints of the flagellum, the entirely black scutellum, 

 and obviously narrower tarsi and the pale anterior coxae. 



Stephens says his /. pallifrons, the ? of which only is referable to the 

 present species, was not very common about London and in Shropshire ; 

 Bignell has taken it at Bickleigh, in Devon, towards the end of August ; 

 Essex. On the Continent, where it appears rarer than the preceding, and 

 occurs in August, it has been bred from an unknown Nodiia ; and by 

 Billups, in London, from Spilosoma fuiigitiosa^ L. 



6. sinister, JVesvi. 



Ichneumon hucocerus, Gr. I. E. i. 208 (?), excl. ? ; Ilolmgr. Sv. Ak. Handl. 1854, 

 p. 30, i . I. i^emellus, var. 3, Wesm. Nouv. Mem. Ac. Briix. 1844, P- 33. i • ^- ■J'«"/^^ 

 Wesm. Bui. Ac. Briix. 1S48, p. 148, 6 ; lib. cit. 1855, P- 367, ? ; Holmgr. Ichn. Suec. 

 i. 20 ; Berth. Ann. Soc, Fr. 1894, p. 540, i 9 . Coelichneumon sinister, Thorns. O. E. 

 xviii. 1904, 6 ? . 



This and the following species may be at once known from the former 

 groups by their black bodies and hind tibiae. Rather shining, coarsely 

 punctate, black. Head buccate, cheeks and temples strongly inflated ; 

 clypeus truncate, with broad lateral foveae ; internal, and a small dot at 

 vertical orbits white, S also with margin of clypeus white. Antennae 

 apically setaceous ; white-banded in both sexes, scape white beneath in $. 

 Thorax somewhat short ; pronotum and a line before and beneath radix of 

 S , beneath only in ? , and the whole scutellum in both sexes white ; 

 metathorax somewhat rugosely punctate, more finely at the base ; areola 

 semi-oval, broadly emarginate apically. Abdomen black, shining and very 

 faintly bluish towards the apex ; its sides sub-parallel ; segments three to 

 five distinctly depressed basally ; two and three narrowly red-margined in 

 ($; post-petiole aciculate-punctate ; gastrocaeli deep, the intervening space 

 somewhat narrow and, of c^ , rugose. Legs, including all the coxae, black ; 

 anterior legs, especially of 3 , more or less flavidous laterally ; $ scopulae 

 small but distinct. Wings flavescent ; stigma fulvous, tegulae black ; 

 areolet broad above. Length, 15-18 mm. 



This species may be readily distinguished by its entirely white scutellum, 

 buccate cheeks, and by the broad vertex of the head ; in the ? by the 

 antennae, which are not spiral, and by the posterior coxae being furnished 

 at their apices with tubercles bearing tufts ; the 6 by its antennae, which 

 are semi-annulated with white and have elevated carinae on joints eight to 

 twenty ; moreover, the stigma in both sexes is pale. 



Mr. F. H. Day has, I believe, taken the ? at Carlisle ; it is also recorded 

 from Essex. On the Continent it is uncommon, being recorded only from 

 France and Sweden, where it occurs in August. 



7. leucocerus, Grav. 



Ichneumon semi-orhilalis, Gr. I. E. i. 212, i (part). /. lencocerusS''^- Mem. Ac. Sc. 

 Turin, 1820, p. 289 ; I. E. i. 208, excl. 6 ; Sie. 111. M. vii. 148, 9 ; Wesm. Nouv. 

 Mem. Ac. Brux. 1844, p. 30, excl. var. ; Ilolmgr. Ichn. Suec. i. 22 ; Berth. Ann. Soc. 



