411 



delicately reticulate, llio ahdnmen more distinctly -eticulate witli the 

 lines on the first tcr.uite arranged more or less concentrically, more dis- 

 tinctly so towards tlie middle of the segment, tlie middle tergites 

 smooth and polished, tlie last tergite more coarseh' reticulate with 

 longitudinal lines and appearing somewhat rugulose. 



Eyes with - a very fine, sparse pile; cheeks, lower part of face. 

 anterior orbits of eyes, and tlie frons with moderatel\- abundant whit- 

 ish pubescence; oral margin with a fringe of much longer white hairs; 

 mesoscutum, axillae and scutellum with a moderately dense, appressed 

 white pubescence of sliort flattened hairs, the scutellum with a pair of 

 rather long, black bristles at apex and a pair of shorter bristles placed 

 just in front of the apical pair and more towards the sides ; metapleura, 

 first tergite and sides of abdomen with a few scattered, very fine, whit- 

 ish hairs. 



Length: (t.oo to) 1.87: width of vertex: 0.21Q; width of mesoscutum: 

 0.52; length of fore-wing: 1.37; width of fore-wing: 0.523 mm. 



Head black, the mandibles reddish brown ; scape shining black with 

 a broad, transparent white band just before the apex, base of pedicel 

 black, the apical two-thirds white, funicle blackish gradually becoming- 

 paler distad so that more or less of the sixth and sometimes part of 

 the fifth joint becomes yellowish wliite like tlie cluli. Mesonotum dull 

 ochraceous orange (R.). the anterior margin of tlie scutum blackish, 

 or more rarely and ap])arentl\' only in small specimens tlie wiiole scutum 

 except laterally and the central part of the scutellum may be suffused 

 with black ; posterior margin of tlie propleura. anterior part of the 

 mesopleura and the mesosternum nearly concolorous witli mesoscutum; 

 rest of the propleura and pronotum black; most of the mesopleura, 

 the metanotum, propodeum and abdomen blackish, the metapleura and 

 sometimes the base of the venter brown ; prepectal plates and tegulae 

 whitish. Legs maize yellow (R.), the coxae more whitish the tarsi 

 deeper yellow- with apex of the last joint blackish. Wings hyaline, the 

 veins yellowish brown. 



Male : Head much thinner f ronto-occipitally than in the female, tlie 

 curvatitre nearly uniform from oral to occipital margin, as seen from in 

 front somewhat broader in proportion to the length, being widest above 

 the middle of the eyes ; the latter more protuberant and considerably 

 smaller; frontovertex plaiidy wider tlian long, the ocelli in a slightly 

 obtuse-angled triangle, the i)osterior pair al)out as far removed from 

 either the eye or occipital margin as one half their distance apart; face 

 and cheeks considerably longer than in the female, the scrobes in the 

 form of rather short parallel furrows extending upward to tlie middle 

 of the eyes and separated by tlie f.icial iironiinence, whicli is not 

 <1rched and smaller than in tlu- female so that it is hardly visible in 

 side view of head. Antennae inserted close together just brjow the 

 line connecting the lower corners of the eyes and far removed from 

 the oral margin ; scape somewhat ^liorter than in tlir fenirde. compressed 

 hut imicli less exijandi-il I)enealh. l)eiiig narrowly o\al or about one 



