386 P. CAMERON. 



above. Areolet triangular; the cubitus ends, or becomes faint, shortly beyond 

 it; there is no branch on the transverse cubitus which is largely bullated below ; 

 the transverse basal uervure is interstitial. The middle lobe of the mesonotum 

 clearly separated. Claws slender, simple. 



Hab. — Amazonia; Rio Mauhes. (Prof. I. W. H. Trail.) 

 This is not a typical Agathis. It might be a Cremnops, if it 

 were not for the small simple claws. 



Agathis Trailii sp. nov. 



Black ; the metanotum, basal 4 segments of the abdomen and the legs luteous; 

 a pale yellow band round the apex of the scutellum ; the outer side of posterior 

 coxae, apex of hind tibiae and the hind tarsi black ; the labrum and palpi pale 

 yellow. Wings yellowish hyaline, a narrow fuscous cloud at the base of the 

 stigma and a broader one at the apex. Length 10 mm. 9 • 



Smooth and shining; the breast and legs at the base covered with long white 

 hair, the tibise much more thickly with stiffer fulvous hair; the tarsi with black 

 hair. Head shining, the face and clypeus shining, punctured, somewhat thickly 

 covered with longish black hair. Areolet triangular; the transverse cubital 

 nervure without a branch ; transverse median uervure interstitial. All the claws 

 cleft, the inner claw much shorter than the outer, especially the posterior. 

 Malar space somewhat more than half the length of the eyes. Front above 

 bordered by a stout, roundly curved keel, which reaches to the eyes. Ovipositor 

 not projecting. Metanotum without keels. Scutellum large, flat, not keeled, its 

 apex rounded. Hind legs long and stout, their coxa? about 4 times longer than 

 wide, the long spur of the black hinder calcaria reaches to shorter beyond the 

 middle of the metatarsus. Wings longer than the body. 



Hab. — Amazons ; Rio Juriui. (Prof. I. W. H. Trail.) 

 This species belongs to the Agathidini as defined by Dr. Ash- 

 mead (Proc. U. S. Nat. Mus., xxiii, 127), and in his table would 

 come into Agathis. if the claws were not cleft; and a keel on the 

 front ; it is not a Troticus, as the palpi are normal. In the table 

 given by Szepligeti (Termes. Fuzetek, xxv, 64) it agrees best with 

 Agathis, but the head, viewed from the front, is shorter. 



Agathis erythrogastra sp. nov. 



Black ; the median segment, abdomen and hind legs, except the trochanters, 

 red ; the hind tarsi black above; the calcaria reddish ; wings uniformly fuscous, 

 the stigma and nervures black. % . Length 7 mm. 



Antennae much longer than the body. Smooth and shining; the head covered 

 with blackish, the pleurae with white pubescence. Scutellum roundly convex, 

 narrowed towards the apex, the sides not keeled. Parapsidal furrows only indi- 

 cated at the base. Area on centre of median segment distinct, narrowed sharply 

 at the base, the keels stout and waved ; in the centre are 2 stout, twisted keels. 

 First segment of abdomen twice longer than wide; there is an elongated, deep 

 fovea in the centre near the apex ; the depressions at the base of the 2nd and 3rd 

 segments are deep; they have also a transverse furrow shortly beyond the mid- 



