56 



BRITISH ICHNEUMONS. 



Wings flavescent ; stigma and tegulae fulvous ; areolet narrowed above. 

 Length, 8-10 mm. 



6 is very similar to that of C. rufifrons in coloration, from which it 

 may at once be distinguished by the pale band on the upper side of the 

 antennae and by the thyridii being nearly twice as broad as the intervening 

 space. 



Stephens says, " Very rare ; found near London, in July." Bignell has 

 bred it in S. Devon, on December 19th, from Selc7iia lunaria ; Bridgman 

 did not find it in Norfolk ; though recorded from Essex, it would appear 

 to be of uncommon occurrence with us. Holmgren, however, tells us it is 

 common in grassy places among undergrowth, in Sweden ; it also occurs 

 in Germany, Hungary and Russia, but has not there been bred. 



5. rufifrons, Grav. 



Ichneumon rtiffrons, Gr. I. E. i. 139 ; Ste. 111. M. vii. 134, 9 ; Wesm. Nouv. M6m. 

 Ac. Brux. 1844, p. 104 ; liolmgr. Ichn. Suec. i. 157 ; Thorns. Ann. Soc. Fr. 1887, p. 

 15 ; Berth, lib. cit. 1895, p. 269, i 9. I. pallidatorius, Gr. I. E. i. 196; Ste. 111. M. 

 vii. 145, i . Cratichiieiinion rnjifrons, Thorns. O. E. xviii. 1948, c5 9 • 



$. Head with the clypeus, face, mouth and generally all the orbits 

 ivory-white. Antennae with scape generally whitish, and flagellum ru- 

 fescent, beneath. Thorax with small marks below the scutellum, below 

 and before the radix, sometimes also on the pronotum and the breast, 

 white ; metanotum with three upper areae of which the areola is semi-oval. 

 Scutellum rarely entirely, usually at the apex only, white. Abdomen 

 blackish, with the apex of the segments more or less castaneous ; apex of 

 segment two rarely whitish ; petiole very sparsely and obsoletely punctate, 

 smooth ; gastrocaeli and thyridii very small, linear and reddish. Legs 

 slender ; the anterior stramineous, with the coxae and trochanters white, 

 upper side of the femora, and occasionally of the tibiae also, more or less 

 fuscous ; hind legs black, generally with the base of the femora, the coxae 

 and apex of trochanters, whitish, as well as the base of the tibiae, the 

 calcaria and more or less of the tarsi. 



$ . Head sometimes entirely, but usually with the orbits, face, labrum 

 and mandibles, rufescent; palpi fuscous; face protuberant below antennae. 

 Antennae filiform, with scape castaneous beneath ; sixth joint quadrate, 

 flagellum white -banded. Thorax badious or black ; a small line below 

 scutellum, a dot before the radix and the pronotum obscurely red ; 

 metathorax finely and evenly punctate ; spiracles short ; carinae sub- 

 obsolete, costulae wanting ; areola semi-oval, usually incomplete apically. 

 Scutellum black or castaneous. Abdomen dull, ovate, fuscous or badious, 

 with the incisures paler ; petiole closely, finely and distinctly punctate ; 

 second segment alutaceo-punctate throughout ; gastrocaeli obsolete ; 

 thyridii distinct, though small ; terebra somewhat exserted. Anterior 

 legs ochraceous, rufescent above, the coxae, which bear no scopulae, 

 and trochanters black or badious ; hind legs somewhat short and stout, 

 blackish, with trochanters and femora before the apex, tibiae at the base, 

 the calcaria, and base of tarsal joints, ferrugineous. Wings sub-hyaline ; 

 Stigma and tegulae red ; areolet sub-deltoid in both sexes. Length, 

 5-10 mm. 



The absence of the scopulae, more shining mesonotum, which is 



