108 Annals of the Carnegie Museum. 



very noticeably different in size. General color dark fuscous, conspicu- 

 ously varied with testaceous on the pronotum and legs. 



Summit of head finely granulose, depressed between the rather promi- 

 nent eyes, a trifle narrower than the width of one of them, narrowing 

 gently toward the vertex and provided with a low but distinct median 

 carina; vertex gently depressed, not quite reaching the front edge of the 

 eyes, the antero-lateral carinae somewhat obliterated near the middle, 

 their posterior ends bent back and extending along the inner margin of 

 the eyes to about their middle. Frontal costa continuous with the median 

 carina of the summit of the head but very slender and depressed above 

 the point where it branches, fairly prominent between the antennae and 

 when viewed laterally roundly arcuate, profoundly but narrowly sulcate,, 

 the walls thin. Posterior ocelli small, situated a little below the middle of 

 the front edge of the eyes; antennae inserted just below the level of the 

 lower edges of the eyes, slender, short, composed of about twelve joints- 

 Pronotum granulose and more or less rugose at sides and on the disk 

 anteriorly, produced in a slender point that extends considerably beyond 

 the apex of the hind femora, the disk anteriorly gently convex, posteriorly 

 somewhat flattened but not depressed, the median carina only briefly 

 prominent just back of the anterior edge, back of this slender, low, very 

 gently undulate but continuous; lateral carinse on the ffont lobe incon- 

 spicuous, short, gently convergent posteriorly, widely interrupted in ad- 

 vance of the humeral angle, the scapular area inconspicuous; the disk 

 between the humeri provided with several inconspicuous elongate rugae 

 or carinae. Anterior and middle femora rather strongly carinated and 

 more or less lobate, the lower edge of the latter especially so, the carina 

 very wide and lobate beyond its middle, the subapical tooth present but 

 not nearly so prominent as in the species tibialis; tibiae weakly lobate 

 on superior carina; posterior femora fairly robust and somewhat rugose, 

 the upper edge not especially nodulose, the superior carina terminating 

 in a weak tooth just in advance of the knee; hind tibiae but little enlarged 

 apically, weakly spined, the outer margin bearing 5 or 6 and the inner 

 one either 4 or 5; the first and third tarsal joints about equal in length. 

 Valves of the ovipositor moderately robust, both the upper and lower 

 quite strongly serrated. 



Length of body, cf, 6,5 mm., 9, 8 mm.; of pronotum, d^, 8.25 mm,, 

 9 , 10.5 mm.; of hind femora, c?', 4.5 mm., 9 , 5 mm. 



Habitat. — Corumba and Chapada, near Cuyaba, Matto Grosso, Brazil, 



