160 HYMENOPTERA. 



in the middle ; behind it is entirely black ; the ocelli are in a black spot, and from 

 this a thin black line runs to the black excavated part over the antennae. The orbits 

 of the eyes are faintly yellowish. Mandibles yellowish laterally, their apices blackish. 

 Scutellum not very much raised over the mesonotum, but considerably raised above the 

 postscutellum ; covered with long fuscous hair. The metathorax has a gradually rounded 

 slope to the petiole, and is covered with a silvery white pubescence. Metathoracic 

 areas entirely obliterated. The sutures of the pleurae, and the metasternum, are black. 

 Petiole long, slender, not much dilated at the apex, smooth, shining, and impunctate ; 

 the rest of the abdomen is smooth, shining, and scarcely punctured. Antennas stout, 

 nearly as long as the thorax and abdomen together, tapering gradually towards the apex, 

 covered with a microscopic pile ; third joint distinctly longer than the fourth. Areolet 

 square above, beneath but slightly angled in the middle. The apices of both wings are 

 black ; in the anterior pair a yellow band runs obliquely from the stigma to the apical 

 dark cloud, and there is another band before the middle. Legs long. 



54. Ichneumon guatemalensis. (Tab. vil. fig. 20.) 



Ferrugineus ; coxis, femoribus, abdominis dorso pro majore parte apiceque antennarum nigris ; medio 



antennarum tibiisque proparte flavis ; alis flavo-hyalinis, costa et stigmate testaceis. § . 

 Long. 14 millim. 



Hob. Guatemala, Purula in Vera Paz (Champion). 



Head wrinkled, subbuccate, excavated above ; antennae covered with white hairs ; 

 eyes margined on the" inner side, a furrow surrounding them on the outer side. 

 Clypeus rounded at the sides, transverse at the apex ; a large fovea on either side above. 

 Thorax closely punctured above, the sides wrinkled, obscurely reticulated at the edges. 

 Scutellum moderately elevated, a deep depression at the base, which is slightly rounded, 

 the sides straight ; closely punctured. Scutum at the sides of the scutellum striated, 

 but not throughout. Postscutellum longitudinally striated, the sides punctured. 

 Metanotum closely and irregularly reticulated, the areae distinct. Petiole smooth, 

 shining, the apex hollow and reticulated, margined at the sides. The other 

 abdominal segments closely punctured ; the apex faintly punctured, subovate ; 

 segments seven and six together nearly as long as the fifth, which is about one 

 fourth shorter than the fourth ; second segment one third longer than the third. The 

 base of the antennae to the sixth joint ferruginous ; joints 6-18 yellow, inclining to 

 ferruginous at the base and apex; the second joint is not much longer than the 

 third, which is a little longer than the fourth. The vertex is for the most part black 

 in the centre; the greater part of the mesonotum on either side of the scutellum, 

 the base of the metanotum and its postmedian area, the sutures of the pleurae, the 

 petiole [except at the extreme apex], and the abdominal segments [except at the 

 apex], the coxae and femora, black. The tibiae are ferruginous at the base all round ; 

 the anterior pair are yellow in front and behind not far from the base, the rest being 

 ferruginous; the middle pair have a yellow band in front of the middle; and the 



