BRACHYGLUTINI 171 



eyes, with a pair of small, distinct vertexal foveae, each nearer an eye than to 

 each other and distinctly less in diameter than an eye facet. No circumambient 

 sulcus connecting the vertexal foveae. Front between antennal bases indistinctly 

 impressed, and anterior to antennal bases triangularly declivous to the simple, 

 nearly vertical, hirsute epistome. Labrum rather small and simple. Mandibles 

 conspicuous, each with a distinct, obliquely truncate tooth or boss at base on 

 the external face. Ventral face of head with a median, longitudinal carina, a 

 biarcuate lateral carina on each side, and a short, straight carina from middle 

 of ventral margin of each eye to lateral carina, joining the latter at a right 

 angle. (PI. VII, 12) 



Maxillary palpi four-segmented, normal, first segment minute and cylin- 

 drical; second elongate, arcuate, basally slender and inflated in distal third; 

 third short, one-third as long as second and slightly wider than second, subtri- 

 angular; fourth longer than second and wider than third, elongate-ovate, ob- 

 liquely truncate at base, apex subtruncate slightly, with a palpal cone at apex. 



Antennae widely separated at base, eleven-segmented, abnormal, segments 

 I and II subovate, relatively large, subequal from dorsal view; III obconical, 

 shorter and narrower than second; IV to VII subequal in width, transverse, 

 shorter than third, closely articulated; VIII subtrapezoidal, a little wider than 

 seventh ; IX transverse, asymmetrically triangular from a dorsal view and quad- 

 rate from a posterior view, distinctly wider and longer than tenth, the quadrate 

 posterior face with a broad, shallow fovea; X small and inconspicuous, very 

 transverse, much narrower and shorter than ninth, asymmetrically trapezoidal; 

 XI one-half wider than ninth and as long as fourth to ninth inclusive united, 

 0.107 mm. long, truncate at base, subovate with a short, blunt apex, nearly as 

 wide as long. This eleventh segment is excavated on the internal face at apical 

 third and on the dorsal face near the base is a conspicuous, circular, raised table 

 or drum-shaped tubercle. 



Pronotum slightly wider than long; basal margin slightly medianly pro- 

 duced or sinuate; base of pronotum with no foveae, neither lateral nor basal. 

 The positions usually occupied by lateral and median foveae are indicated by 

 darkened areas of the integument. 



Elytra with humeri obliquely elevated ; each elytron with an entire sutural 

 stria, no trace of a dorsal stria, flank simple, the base with four small basal 

 foveae. 



Abdomen with five visible tergites, only the first two of which are to be 

 seen from a dorsal view; first three tergites narrowly but distinctly margined. 

 First tergite as long as second and third united, with a pair of straight, parallel 

 basal carinae separated by one-fourth of the segmental width and almost one- 

 half as long as segment. Second tergite and fourth subequal in length, longer 

 than third. Fifth as long as the third and fourth united, apical margin rounded- 

 triangular in outline. 



Five stemites visible medianly, the first of these as long as the second to 

 the fifth inclusive united; second, third, and fourth very short and inconspic- 

 uous; fifth relatively large, three- fourths the length of the first visible stemite. 



