Feb. '08] JOURNAL OP ECONOMIC ENTOMOLOGY 29 



turn ; its scale in profile, compressed, euneate, inclined forward, with flattened 

 anterior and posterior surfaces and rather acute apex ; seen from behind its 

 border is entire and evenly rounded or even slightly produced upward in the 

 middle. Gaster small. Legs rather slender. 



"Body minutely shagreened or coriaceous, subopaque and glossy ; mandibles, 

 clypeus and anterior border of the head more shining. Mandibles minutely 

 and rather obscurely punctate. 



"Hairs few, suberect, yellowish, confined to the mandibles, clypeus, tip and 

 lower surface of the gaster. Pubescence short and uniform, grayish, so that 

 the body has a slightly pruinose appearance. 



"Bro\\Ti ; Thorax, scapes and legs somewhat paler ; mandibles yellowish ; 

 apices of the individual funicular joints blackish. 



Female (dealated) : Length 4.5-5 mm. 



"Head without the mandibles, but little longer than broad, with rather an- 

 gular posterior corners, straight, subparallel sides and straight posterior 

 border. Eyes large and rather convex. Mandibles and clypeus like that of 

 the worker, scapes proportionally shorter and stouter. Thorax large, as 

 broad as the head, elongate elliptical, nearly three times as long as broad. 

 In profile the scutellum is very convex, projecting above the meso- and 

 epinotum. Epinotum with very short base and long abrupt declivity. Petio- 

 lar node erect, more than half as broad as the epinotum. Gaster elliptical, 

 somewhat shorter and a little broader than the thorax. Legs slender. 



"Sculpture like that of the worker but more opaque ; mandibles and clypeus 

 also less shining. 



"Scattered hairs more numerous than in the worker and also present in 

 small numbers on the vertex, gula, mesonotum, prosternum and fore coxae. 

 There is also a row of short hairs along the posterior margin of each gastric 

 segment. Pubescence distinctly longer, more silky, and denser than in the 

 worker. 



"Dark brown ; antennae, legs and posterior margins of the gastric segments 

 reddish ; mandibles, sutures of thorax and articulations of legs yellow. 



Male: Length 2.8-3 mm. 



"Head much flattened ; including the flattened eyes, as broad as long. Ver- 

 tex and ocelli prominent. Cheeks short. Mandibles small, overlapping, with 

 a single, acuminate apical tooth. Anterior clypeal border straight. Antennae 

 slender ; scape only between three and four times as long as broad ; first 

 funicular joint globose, broader than any of the other joints; second joint 

 much longer than the scape; joints 3-5 growing successively shorter; joints 

 6-12 considerably shorter and more slender. Thorax very robust, elliptical, 

 broader than the head, which is over-arched by the protruding, rounded 

 mesonotum. Scutellum even more prominent than in the female. Epinotum 

 with subequal base and declivity, the former slightly convex, the latter 

 feebly concave, forming an angle with each other. Petiole small, its node 

 with rather blunt margin, slightly inclined forward. Gaster very small, elon- 

 gate eliptical, with small rounded external genital valves. Legs slender. 

 Wings with a four-sided discal cell and two well developed cubital cells. 

 The costal margin is depressed or folded in just proximally to the stigma. 



"Sculpture, pilosity and pubescence as in the worker ; coolr more like that 

 of the female, except that the antennae, legs, mandibles and internal genit- 

 alia are pale, sordid yellow. Wings smoky hyaline, with brown veins and 

 stigma. 



