502 



narrower than the pronotum ; ocelli very small, probably not function- 

 able, arranged in a small, obtuse-angled triangle, the posterior pair close 

 to the occipital margin and their distance apart equalling the distance to 

 the eye-margins ; the latter acute ; eyes elon^^gte oval, lying parallel with 

 the longer axis of head ; cheeks about as long as wide, and as wide as 

 the eyes. Antennae inserted slightly above the clypeal margin ; the scape 

 flattened but hardly expanded below, including the radicle joint about 

 four times as long as wide ; pedicel somewhat shorter than the first two 

 funicle joints combined; and wider at apex than the following joint; 

 flagellum cylindrical, increasing distinctly but not greatly in thickness 

 distad; funicle joints all nearly equal in length, the first and sixth 

 slightly longer, the first somewhat longer than wide, the last nearly as 

 wide as long; club nearly as long as the three preceding joints com- 

 bined, a little wider and rounded at apex, distinctly three-jointed, the 

 first and third joints slightly longer than the second. 



Thorax short and much depressed ; pronotum but slightly declivous 

 although prolonged and constricted towards the apex, the posterior por- 

 tion transverse, and about two-thirds as long as the mesoscutum, its 

 posterior margin but slightly arcuate ; the mesoscutum twice as wide 

 as its median length, its posterior margin perfectly truncate ; axillae 

 wider than long, acutely meeting medially ; scutellum small, shorter than 

 the mesoscutum, a little wider than long and broadly rounded at apex ; 

 propodeum very short in the middle and longer at the sides, the meta- 

 pleura very small and obliquely transverse. Abdomen nearly twice as 

 long as the head and thorax combined, acute at apex and somewhat 

 wider at base than the thorax ; the vibrissal plates situated half way 

 or a little more from the middle towards the base and often concealed 

 beneath the first tergite ; ovipositor not protruded. Wings rudimentary, 

 the front pair not reaching beyond the apex of the scutellum. 



Surface of head, thorax and abdomen smooth and shining with a fine 

 reticulation on the mesoscutum barely perceptible. Eyes with a short,, 

 sparse pile ; head and thorax with a short dark-colored, inconspicuous pu- 

 bescence that is nowhere abundant. 



Length : .94 to 1.36 mm. 



Head and thorax about yellow ocher (Ridgway) varying to tawny 

 especially on the head ; the underparts of the thorax and legs a little 

 paler yellow ; abdomen black or piceous, becoming brownish at the base 

 of the first tergite ; scape and pedicel concolorous with the face, the 

 flagellum black, more dilutely at base, the first funicle joint appearing 

 somewhat yellowish in balsam mounts. 



Male : Head wider and shorter than in the female, being wider than 

 long; space between eyes from the antennal sockets to the occipital 

 margin about as wide as long, the face and frons concave as in the 

 female but without the triangular elevation on the upper part ; scape 

 and pedicel very nearly the same, the flagellum much longer, cylindrical 

 and not thickened distad; first funicle joint nearly four times as long as 

 thick, the following joints gradually shortening, the si.xth about twice 



