of Ih/menoptcrous Insects of New Zealand. 477 



Ichneumon exhilaratus. 

 Male. — Length 6^ lines. Ferruginous, and variegated 

 with yellow. Head: the front, below the antennae, the 

 mandibles and scape in front, yellow ; the flagellum, and 

 scape behind, black. Thorax: the scutellum, post-scu- 

 tellum and tegulas yellow ; wings fulvo-hyaline, with the 

 nervures black, the latter pale ferruginous at the base of 

 the wings; the anterior and intermediate legs yellow, with 

 their coxas ferruginous ; the posterior femora, trochanters 

 and coxa3 ferruginous, tibia3 and tarsi yellow. Abdomen 

 ferruginous, with the basal segment yellow. 



Ichneumon deceptus. 



Female. — Length 6 1 — 7 lines. Head and thorax black, 

 abdomen ferruginous. The inner orbits of the eyes above 

 the antenna3, and sometimes a spot on each side of the 

 clypeus, close to the eyes, yellow, the latter spot frequently 

 obsolete ; the scape in front and the mandibles ferruginous. 

 Thorax : the lateral margins of the prothorax more or less 

 yellow ; two ovate spots beneath the wings, the scutellum 

 and post-scutellum, and a spot on the posterior coxre above, 

 yellow, the latter sometimes obsolete; Avings flavo-hyaline, 

 the nervures fusco-testaceous, the inferior margin of the 

 stigma and the nervures at the base of the wings pale 

 ferruginous, occasionally a yellow spot on the disk of the 

 thorax; legs ferruginous, the coxre being more or less 

 black. Abdomen ferruginous, impunctate, smooth and 

 shining, sometimes a little inclined to become fuscous 

 towards the apex. 



This is a variable insect ; in some examples there is a 

 yellow or fen-uginous spot on the metathorax, situated in 

 the horseshoe-shaped enclosed space ; other specimens 

 have the two apical segments of the abdomen black, or 

 more or less so ; a series of examples present other slight 

 variations. 



Cryptides. 



Mesosteiius alhopictus. (PI. IV. fig. L) 



Female. — Length 5 — 7 lines. Black, variegated with 

 white lines and spots ; legs ferruginous, black, and white. 

 Head : orbits of the eyes white, interrupted at the vertex ; 

 the front below the antennte and the palpi white ; joints 

 8 — 12 of the antenna white, sometimes the 13th also. 

 Thorax : a line on each side of the prothorax, five large 



