20 PROCEEDING OF THE NATIONAL MUSEUM vol. 124 



ular distance 1.5 times the postocellar distance and about 0.6 times 

 the ocelloccipital distance; occipital carina lacking on dorsum; median 

 flagellar segments with length about 1.4 times the width. 



Pronotum with sparse, rather small punctures, disk anteriorly with 

 three weak, transverse rugae, the interspaces with coarser, subcon- 

 tiguous punctures; scutum and scutellum with very coarse, shallow, 

 contiguous pits; mesopleural disk with very large, shallow, contiguous 

 to subcontiguous pits; metapleuron above with close, fine ridges that 

 become coarser on anterior part of lateral propodeal surface; dorsal 

 propodeal surface with a narrow, elongate cuneate depression along 

 midline somewhat irregularly wrinkled, laterad of this with some 

 scattered to contiguous large pits, posteriorly with a strong trans- 

 verse ridge ; posterior part of lateral surface with large, subcontiguous 

 pits, posterior surface similarly sculptured. 



First tergum with strong transverse ridge anteriorly, behind which 

 is a series of large confluent pits; fifth sternum with a narrow trans- 

 verse patch of fine, short velvety hair at apex; sixth sternum with 

 a denser and larger patch of similar hair across posterior half of 

 sclerite. 



Genitalia with inner surface of squama and cuspis volsellaris 

 densely setose; cuspis volsellaris digitate at apex; lamina volsellaris 

 with fine setae only on ventral margin; paramere without tubercle 

 on inner ventral surface halfway to apex. 



Specimens examined. — 1 cf; Kumaon, northern India, April 1891, 

 Bingham (BMNH, the type). 3 cf, Yakorubi near Karwar, Mysore 

 Province, India, 28 April 1910, T. R. Bell, variously labeled "at dead 

 tree" and "flying over dead tree" (BMNH, USNM). 2 cf; Schwego 

 Myo, Birmania, October 1885, Tea (MCSN, USNM; misdetermined 

 as tricolor by Magretti). 



The Yakorubi specimens are 13-14 mm long and agree with the 

 type in all essential details except that all of the head is red except 

 tip of mandible, hypostomal area, ocellar triangle, and last six flag- 

 ellar segments. The Burma specimens are 10 mm long and have the 

 head colored as in the series from Yakorubi except that the last 

 eight flagellar segments are black; also, the pronotal ridges are weaker. 

 All five specimens have stronger blue reflections on the abdomen than 

 does the type; the head length is 0.85-0.88 times the width and the 

 ocellocular distance is 1.5-1.7 times the postocellar and 0.6-0.7 times 

 the ocelloccipital distance. 



