390 Mr. F. Smith's descriptions 



8. Ichneumon incanescens. 



Female. — Length 6^ lines. Black ; with the margins 

 of the two apical segments of the abdomen broadly 

 yellowish-white ; the thorax and legs covered with a short 

 hoary down, particularly at the sides and beneath the 

 former. Five or six of the middle joints of the antennas 

 white beneath. Thorax: the metathorax has above, at its 

 base, an oblong space enclosed by a carina, from the apex 

 of which an oblique carina runs to the lateral margins, 

 which are also carinated ; the usual carina, which crosses 

 the space between the lateral margins and the oblong 

 space, is obsolete in this species ; all the tarsi, and the 

 anterior, and intermediate tibijfi in front, rufo-testaceous, 

 the tarsi more or less dusky above ; the entire insect very 

 closely punctured and opaque, except the three apical 

 segments of the abdomen, which are shining ; wings 

 subhyaline. 



9. Ichneumon vexator. 



Female. — Length 5 lines. Black ; the scutellum yel- 

 low ; the apex of the abdomen white above. Head : two 

 yellow spots on the anterior margin of the face ; five of the 

 middle joints of the antennte white beneath ; a narrow 

 yellow line at the inner margin of the eyes, near their 

 summit. Thorax : on the metathorax above, close to the 

 post-scutellum, a minute transverse space is enclosed by a 

 carina, and immediately beyond is a larger, someAvhat 

 horseshoe-shaped, space, fi'om which the usual oblique 

 carinae run, and between the lateral marginal carinse and 

 the horseshoe-shape, the space is crossed by a transverse 

 carina ; wings fusco-hyaline ; the anterior femora in 

 front, the tibiae, and also the intermediate pair in front, 

 more or less rufo-piceous ; their tarsi rufo-piceous beneath. 

 Abdomen : a large white spot on the two apical segments 

 above ; the entire insect closely punctured and semi- 

 opaque, except the four apical segments, which are 

 shining. / 



10. Ichneumon irritator. 



Female. — Length 6 lines. Black ; with the scutellum 

 and apex of the abdomen white. Head : four of the 

 middle joints of the antennae Avhite beneath. Thorax : a 

 horseshoe-shaped space, enclosed by a carina, at the base 

 of the metathorax, from which an oblique carina runs 



