38 



BRITISH ICHNEUMONS. 



A dull, black and dark red species. Head of S hardly, of ? moderately 

 buccate ; tem[)les and cheeks somewhat broad, punctate, the latter short ; 

 clypeus a[)ically ([uite truncate ; black, (? with paljji, sometimes mandibles, 

 lateral clypeal mark, internal or facial orbits and a vertical dot, whitish ; 

 ? with palpi fuscous, mandibles centrally piceous, sometimes the frontal 

 and a dot at the vertical orbits testaceous. Antennae somewhat stout, 

 attentuate, of S setaceous, of? compresso-dilated before apex ; basal flagellar 

 joint not twice longer than broad ; nigrescent, scape of 

 S sometimes with one or two pale dots beneath, $ 

 with joints six to twelve white above. Thorax stout, 

 punctate, black ; S usually with a minute mark before, 

 and more often a line beneath, the radix, pale ; meta- 

 thorax finely rugose ; upper areae often incomplete ; 

 areola smoother than remainder, emarginate and always 

 Areoiet sub-deltoid, incomplete apically, that of 6 semi-lunar. Scutellum 

 black, of $ not bordered to the centre, with two very 

 often distinct pale dots. Abdomen elongate, apically acute, narrower in S ', 

 black, more or less marked centrally and apically with dull ferrugineous ; 

 post-petiole centrally aciculate, laterally rugose with the angles sub-obtuse, 

 in $ apically punctate ; second segment a little longer than broad ; gastro- 

 caeli deeply impressed, rugose, the thyridii being large and deep, and 

 the intervening space strongly striolate or longitudinally rugose ; terebra 

 exserted, the length of the seventh segment. Legs black, usually the tibiae 

 in part rufescent, the front or anterior ones being laterally stramineous in S ; 

 tarsi fuscous with base paler ; coxae not scopuliferous. Wings slightly 

 fuscescent, moderately broad ; sides of areoiet quite or nearly coalescing 

 above ; stigma fusco-piceous ; radix and tegulae blackish, latter often with 

 a pale exterior margin. Length, 11-17 mm. 



Metathoracic areola always open behind ; segments two to seven 

 entirely or partly red ; areoiet strongly narrowed above ; second and third 

 incisures alone narrowly impressed ; $ joints seven to fifteen of the 

 flagellum with abbreviated carinae, and scutellum usually dotted with 

 white ; ? antennae strongly dilated centrally, and terebra length of seventh 

 segment. 



Examples in my collection bear distinct central nervelets to the internal 

 cubital and second transverse nervures. 



The colour of the legs and abdomen is extremely variable ; the latter 

 may have segments one to two, three or four red ; two to six red with a 

 narrow black margin (var. /. bicuspis, Kriech. Ichn. Wien. Mus.) ; the apical 



^ Ichneumon ancipterus, Desv. Cat. 19, S . 



I am quite at a loss to know where to place this insect. The following description, however, 

 taken direct from the single example in Desvignes' collection in the British Museum would appear to 

 relate more nearly with C. castaneiveidris than with the genus Amblyteles to which I have previously 

 referred it (cf. 1-; M.M. 1902, p. 122). 



Head black ; frontal orbits narrowly, facial orbits broadly flavous, the colour of the latter ceasing 

 truncately some distance above the clypeus; palpi ilavous. Antennae setaceous, gradually attenu- 

 ated, entirely black. Thorax black ; metatborax rugose, with the basal sulcus somewhat deeply 

 impressed; costulae wanting ; areola exactly horseshoe-shaped ; basal area distinct ; the pleural and 

 juxta-coxal areae incompletely discreted. Scutellum black. Abdomen narrow, black above, with 

 segments two and three more or less rufescent and the anus rufo-fulvous ; ventral segments two and 

 three flavous and two to four plicate ; post-petiole aciculate ; gastrocaeli shallow and inconspicuous, the 

 intervening space being somewhat broad. Legs ochreous ; coxae and trochanters, anterior femora 

 externally, hind ones entirely, and the apical half of the hind tibiae, black ; hind tarsi, except extreme 

 base, fuscous. Wings infumate-hyaline ; stigma fulvous ; costa ferrugineous, becoming fusco-flavous 

 basally ; radix and tegulae piceous; areoiet sub-pentagonal, somewhat narrowed above. Length, 

 I2i mm. 



