426 HYMENOPTEEA. 



short fuscous pile ; and the rest of the abdomen, except the apical segments above, is 

 glabrous. The antennae are thickened towards the apex ; the scape is as long as the 

 third joint, the latter being longer than the following two joints united ; the fourth joint 

 is longer by about one sixth than the fifth joint. The eyes are more or less greenish. 

 The face is rather sharply carinate ; and there is a less well-defined keel on either side, 

 this keel being placed nearer to the eyes than to the central keel. The front below the 

 antennae projects and is margined; above the antennae it is depressed. The head is 

 faintly alutaceous, almost shining. The pronotum is deeply excavated, the sides of the 

 excavation margined. The mesonotum is almost opaque ; the sides are margined, and 

 have a furrow on the inner side of the margin ; the parapsidal furrows reach nearly to 

 the base, and are moderately deep and curved ; the surface bears large, distinctly 

 separated punctures, the sides being minutely striated. The scutellum has a somewhat 

 indistinct furrow in the centre, and is, if anything, more strongly punctured than the 

 mesonotum. The mesopleurae are covered with large shallow punctures, except a large 

 space in front. The sternum is apparently impunctate, and densely covered with 

 silvery-white pile. The metanotum is largely rugosely reticulated, the metapleurae 

 less strongly so ; the lateral furrow is wide, and bears oblique widely-set-apart keels. 

 The petiole is as long as the upper part of the following three segments united, opaque, 

 impunctate at the base, densely covered with fuscous pile ; the apical half bears large 

 punctures. The long hind legs are opaque ; the tarsi bear a few stiff bristles on the 

 underside ; the spurs are a little more than one third of the length of the metatarsus ; 

 the claws on the underside are rufous ; the coxae are pitted sparsely towards the base 

 and beneath; the metatarsus is a little longer than the second and third joints united. 

 The wings are more or less fuscous-tinted throughout, but more deeply so at the base ; 

 there is a narrow oblique smoky cloud in the first cubital cellule, and the apex is 

 smoky ; the recurrent nervure is curved, and is scarcely interstitial ; the second cubital 

 cellule is longer than the third ; the second transverse cubital nervure is almost 

 obsolete. 



2. Evania albo-facialis. (Tab. xvii. fig. 17, <? .) 



Nigra, facie alba, punctata ; thorace antice rotundato ; petiolo coxisque posticis punctatis ; alis fere fumatis. <$ . 

 Long. 11-12 millim. 



Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). 



The face, the sternum, pleurae, metanotum, and coxae are densely covered with silvery- 

 white pile, the rest of the body with fuscous pile. The scape is about half the length 

 of the third antennal joint, the latter about one fourth longer than the following joint ; 

 from the fourth the joints are slightly bent and dilated at the apex. The face is 

 sharply keeled in the centre, and closely and rather strongly punctured ; the central 

 keel is for the greater part black. Front not much depressed, alutaceous. Mesonotum 

 shining, sparsely punctured. Parapsidal furrows not very deep, curved, not reaching 



