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102 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 7.-) 



arated black spots ; scape, save black spot apically above ; prothorax ; 

 prominent U-shaped discal mark and broad lateral lines on scutum; 

 broad fascia on scutellum with short anterior extension at midline: 

 metanotum; propodeum almost entirely; metapleura; mesopleura, 

 except a minute round spot; broad continuous fasciae on tergites 

 1-6, first, second, and third each bearing a pair of dorsal spots, fourth 

 and fifth biemarginate on anterior border ; sternites 1 and 2 ; sternite 

 3, except small median anterior spot; fasciae on 4 and 5 each with 

 a prominent median and pair of smaller lateral anterior emargina- 

 tions; narrow interrupted apical fascia on sternite 6; legs, except 

 jjosterior line on all femora ; yellow. 



The flagellum is testaceous below, darker above, and segments 6. 

 7, and 8 are spinose on posterior border. The apical segment is 

 strongly curved and sharply pointed, giving the segment a sickle- 

 shaped outline. The intermediate femora are serrato-dentate. The 

 second sternite bears an evident median carina and the sixth bears 

 a slight median process, which terminates near the apex of the seg- 

 ment and from which a transverse ridge extends on either side to 

 the margin of the sternite at a short distance from the apex. The 

 apical part of the seventh sternite bears a median carina and is 

 pointed at the apex. The seventh tergite bears distinct lateral lobes 

 (fig. 191), in this respect resembling trepanda and oHentdlis. 



Allotype. — Black: labrum; mandibles, except tips; clypeus, except 

 a pair of small basal black spots ; anterior orbits deflected inward at 

 the vertex to join the posterior orbits; frons below anterior ocellus, 

 except a pair of large black spots; prothorax; broad U-shaped mark 

 and broad lateral lines on scutum; very broad fascia on scutellum 

 with short median anterior prolongation; metanotum; propodeum 

 almost entirely; metapleura; mesopleura; broad fasciae on tergites 

 1-5, each emarginate at midline posteriorly, first, second, and third 

 each inclosing a pair of dorsal spots, fourth and fifth biemarginate 

 on anterior border; sternite 2, except large median spot; fascia on 

 sternite 3 with deep anterior median emargination ; fascia on 4 with 

 large median and pair of smaller lateral emarginations ; fascia on 5 

 reduced almost to lateral spots; minute lateral spots on 6; legs, 

 except black line on posterior surface of all femora and trace of 

 black on posterior surface of hind tibiae ; yello-w or yellowish white. 



The pubescence is short, white, and normal in development. On 

 the clypeus of the female it imparts a silvery sheen. The flagellum 

 of the female is darker than that of the male, its apical segment is 

 curved slightly but is not so sharply pointed as is that of the male. 

 The wings are hyaline. Basally the clypeus is carinate on midline 

 and somewhat depressed on either side. On all specimens there is a 

 pair of small black spots on the mesosternum. 



