330 PROCEEDINQS OF THE NATIONAL MUSEUM. vol. 52. 



on the clypeus and on the sides; face shining, the depressions on 

 cither side above the antennae highly poUshed, not punctured; head 

 bhick, palpi tawny; compound eyes relatively large, dark; ocelli 

 pale, ahuost equidistant from each other; antennae 35-segmented, 

 black, the first segments shining, the rest dull, largest about the sixth 

 segment, from there gradually tapering towards the tip; labrum 

 about as long as wide, black, the lower margin tawny, coarsely, 

 sparsely, and irregularly punctured and hairy; mandibles tawny, 

 dentate, tips black; beak rather short, black, palpi dull yeUow with 

 a blackish shade, the first two segments of the maxillary palpi dis- 

 tinctly larger than the rest, the segments of the labial palpi relatively 

 short and stout, successively more slender from base to apex. 



Thorax. — Thorax longer than high, wholly black, lateral lobes of 

 pronotum smooth and shining in the middle, closely and finely pimc- 

 tate around the margins, the punctures coarser below; pits of pro- 

 notum large and with distmct marginal ridges; proepisterna closely 

 punctured and hairy and somewhat roughened, except for the lobes 

 above thecoxal insertions, which are smooth; parapsidal furrows well 

 defined, smooth before and behind, more or less distinctly crcnulate 

 in the middle, straight, meeting a short distance before the scutellar 

 fossa, and continuing as a single median groove to it; median lobe 

 grooved broadly but rather shallowly down its middle, the lateral 

 lobes shallowly grooved longitudinally, the whole surface of the meso- 

 notum shinmg, sparsely punctured and hairy; hind angles of the 

 mesoscutum distinctly produced into a vertically compressed lobe; 

 scutellum tapering behind, the sides and apex much rounded off, the 

 scutellar fossa broader than usual as the front wall slopes gradually 

 upward, with a prominent median carina and a single much smaller 

 one dividing the two halves of the fossa; mesopleurae shining, very 

 sparsely punctured and hairy on the disk, more closely above and on 

 the venter; furrow about two-thirds the width of the pleurae, 

 straight, very coarsely crenulate and almost horizontal, metapleurae 

 shinmg, coarsely and sparsely punctured and hairy, the lower third 

 roughened and irregularly arcolate; propodcum areolate, the median 

 ridges converging very gradually from behind forward, then coming 

 together suddenly in front; spiracles elongate oval, the propodeum 

 shallowly excavated behind them and between the two lateral ridges. 



Wings. — Fuliginous, venation and light spotting typical, the first 

 transverse cubitus, forming the inner side of the areolet, running 

 more diagonally outward than usual. 



Legs. — Entirely black, or in some lights black with a faint dull red- 

 dish tinge, the last segment of the middle and hind tarsi and tibial 

 spurs pale; fore and middle tarsal claws cleft, hmd long-toothed, 

 almost cleft, middle tibiae with 1-2 apical spines; hind tibiae with 

 2-3 spines. 



