438 Philippine Journal of Science »» 



blackish spots in front of scutellum; humeri yellow, but with 

 interior hind border reddish; yellow sutural stripe narrower. 

 Pleura entirely reddish, only a little darkened around the yel- 

 low markings; yellow mesopleural stripe narrower; only the 

 hypopleural yellow spot present, that on sides of mesophragma 

 being indistinct or only indicated by a more-yellowish inner 

 border in contact with the above-named spot; mesophragma 

 entirely reddish and unspotted. Bristles as in the preceding, 

 with anterior supra-alar bristle well developed. Scutellum 

 small and short, much broader than long, yellow with a narrow 

 brownish basal stripe. Halteres and squamulas whitish. 



Abdomen with long, narrow, and cylindrical stalk; first and 

 second segments dark brownish, with a narrow yellow hind 

 border; third segment uniformly blackish brown; fourth seg- 

 ment blackish brown, with a rectangular, transverse, yellowish 

 spot in middle at hind border; fifth segment yellowish, with 

 broad blackish patches on sides, and with the two oval patches 

 likewise black, hind border of segment entirely pale yellowish. 

 Venter with blackish terminal sternites. Long, whitish, erect 

 pubescence near base of abdomen. Legs reddish, femora 

 broadly blackish ; base of tarsi not whitish ; middle femora with 

 a pale yellowish base. 



Wings (Plate II, fig. 4) as in the preceding, but with second 

 basal cell mu^jj longer and narrower. The pattern consists of 

 an equal, dark, costal border, extending from base to tip of 

 wing, surpassing a little the third longitudinal vein below; no 

 spotlike dilatation at end; anal stripe not distinct or else in- 

 dicated only by a yellowish shading. Prolongation of anal cell 

 very long, extending about to hind border of wing. No super- 

 numerary lobe at end of sixth vein. 



Note. — The present species belongs in the group with the 

 Indian M. crabroniformis Bezzi, and the Burman M. destilla- 

 toria Bezzi; it has likewise no developed lower orbital bristles, 

 a single yellow hypopleural spot, a narrow and elongate second 

 basal cell, a similar wing pattern with a broad and equal costal 

 border, and with no developed anal stripe. It is, however, 

 distinguished from both by the black oval patches of the fifth 

 abdominal segment and by the differently colored legs. The 

 species M. aequalis Coquillett, M. longicornis Wiedemann (— 

 vespoides Doleschall), and M. conopoides de Meijere, evidently 

 belong to the same group, but the last two are said to have 

 spinose front femora. 



