ICHNEUMON. 151 



defined ; a blunt, not very distinct, tubercle on each side. Petiole shining, smooth, the 

 apex finely striated and punctured ; the sides keeled ; the sides of the postpetiole de- 

 pressed above. The rest of the abdomen punctured all over, but not so strongly as the 

 thorax. Gastrocceli large, a little longer than broad, finely punctured. Coxae strongly, 

 femora finely punctured. The black line on the pleura? runs obliquely from the tegulae 

 to the posterior coxae. The petiole is black on the underside and at the extreme base 

 above. The bands on the third to fifth segments go all round, and occupy about one 

 third of the entire segment. As with most of the species the excavated space above the 

 antennae is smooth and black. The body is covered with a griseous, sparse pubescence. 

 Antennae one half longer than the head and thorax together, tapering towards the apex ; 

 the joints beyond the middle produced beneath ; third joint about one third longer 

 than the following. Areolet 5-angled. 



Closely allied to /. maculipleuralis and I. sycophantus, but easily separated from 

 those species by the black apices of the posterior femora and tibiae. Compared with 

 the latter, the scutellum is broader and flatter, and the antennae have a pale reddish 

 band in the centre. 



33. Ichneumon forreri. (Tab. VII. fig. 15.) 



Ferrugineus ; flagello antennarum fusco, lineis pleuralibus, metathoracis basi et apice, petiole subtus, trochan- 

 teribus, femorum postieorum apice tibiarumque posticarum apice late nigris, tarsis posticis fuscis ; alia 

 fuscis, stigmate nigro, basi albo. S • 



Long. 8 millim. 



Eab. Mexico, Ciudad in Durango 8100 (Forrer). 



Head and thorax finely and closely punctured, and covered with a white pubescence ; 

 the punctures wider apart and longer on the pleurae. Head not dilated behind the 

 eyes ; the front broadly, but not largely, projecting in the centre ; clypeus with a few 

 widely separated punctures. Scutellum not raised above the level of the mesonotum ; 

 the depression at its base deep and wide ; the upper part bearing distant punctures ; 

 the carinae scarcely extending on to the sides of the scutellum ; it is a little longer than 

 broad, somewhat narrowed towards the apex. Metathorax with a gradual slope, 

 shagreened-punctured ; the areae clearly defined ; the supramedian area rounded above, 

 very slightly dilated in the middle at the sides, and at the apex indented by the 

 lower area, which occupies the whole of the front of the metanotum, and is rougher 

 in texture than the rest. Lateral tubercles acute. Petiole smooth and shining ; post- 

 petiole aciculated. Abdomen closely and finely punctured all over. Gastrocceli com- 

 pletely obsolete. The antennae are nearly as long as the thorax and abdomen together ; 

 the underside of the flagellum at the apical half is brownish ; the upperside of the 

 scape is marked with black. The prosternum is almost entirely black; the meso- 

 sternum is broadly black at the base and narrowly black at its junction with the meta- 

 sternum, which is also black ; the sutures between the meso- and metapleurae, the scutum 

 at the side of the scutellum, and the space above the suture between the meso- and 



