430 Philippine Journal of Science ww 



stripes, the middle one even broader than supra-alar ones, and 

 all abbreviated before scutellum; humeral and notopleural calli 

 yellow; yellow supra-alar stripes continued with a small yellow 

 spot in front of suture. Pleura black, with reddish sutures and 

 reddish propleural region ; on mesopleuron a broad yellow patch 

 continued below with a rather large spot on upper part of ster- 

 nopleuron; a double yellow hypopleural spot. Mesophragma 

 and postscutellum entirely black. Scutellum yellow, punctulate 

 and whitish dusted, with a very narrow, black basal stripe ; two 

 pairs of bristles, the basal pair a little weaker than the apical. 

 All the bristles black; middle scapular long and strong; one 

 anterior supra-alar; pteropleural weaker than mesopleural. 

 Halteres and squamulse whitish. 



Abdomen rounded and convex, restricted at base, with normal 

 segmentation, punctulate and pubescent like back of mesonotum. 

 First and second segments together more yellowish, chiefly on 

 posterior half of second; black at base and on sides, the black 

 base of second forming a black transverse middle band, not 

 reaching sides ; long whitish hairs near the base. Third segment 

 reddish; a broad and complete black basal band, broadened on 

 sides; fourth and fifth segments reddish, with a broad black 

 patch on each side ; last three segments with a black longitudinal 

 middle stripe, united at base with the black band of third seg- 

 ment, and at end abbreviated a little before reaching hind 

 border of fifth segment. Third segment of male with long 

 black cilia; oval patches of fifth segment in both sexes more 

 opaque and more dusted than the surrounding parts; oviposi- 

 tor as long as last two abdominal segments together, rather 

 swollen, reddish, more or less infuscated above at base and 

 at end. Venter reddish, with black basal and terminal stern- 

 ites. Coxae more or less brownish; femora yellowish, broadly 

 infuscated at end, those of front pair almost entirely infuscated ; 

 four anterior tibiae blackish, two posterior ones even quite black 

 in the female; in the male all tibiae more lightly colored with 

 darkened end; tarsi whitish at base. 



Wings (Plate I, fig. 9) proportionally broad and long, shin- 

 ing and iridescent ; nervation normal, with second vein straight, 

 third a little curved downward at end; small cross vein placed 

 a little beyond middle of discoidal cell; last portion of fourth 

 vein curved at base. Supernumerary lobe of male very promi- 

 nent and exaggerated. Pattern very much like that of C. syn- 

 nephes; costal cells hyaline; costal border narrow, not extending 

 below beyond second vein or only a little so, and not dilated at 



