344 



Transactions. 



Uropetala chiltoni n. sp. 



<J. Total length, 83 mm. ; abdomen, 60 mm. ; forewing, 49 mm. ; hind- 

 wing, 47 mm. ; expanse, 102 mm. 



General shape exactly as in U. carovei. 



Head. — Eyes dark brown, the inner portion of the orbits blackish, 

 the outer marked with a yellowish line. Occiput broadly yellow, as in 

 U. carovei. Vertex black, the three ocelli brown. Frons yellow above, but 

 with the black colour of the vertex encroaching basally for a short distance, 

 as shown in text-fig. 2b ; anterior portion of frons broadly yellow, this 

 colour encroaching very slightly upon the upper portion of the postclypeus. 

 Postclypeus and anteclypeus both black ; genae yellow. Labrum with 

 black margins surrounding a pair of partially fused subrectangular blocks 

 of yellow, separated above only by a downward-projecting, short, median 

 bar of black. Labium brown The colouring of the facial portion of the 

 head is shown in text-fig. 2a. 



IB 



2B. 



Colour-pattern of head in Uropetala. 



Uropetala carovei White : Fig. 1a, face ; fig. 1b, upper portion of frons. 

 Uropetala chiltoni n. sp. : Fig 2a, face ; fig. 2b, upper portion of frons. 



«c, r anteclypeus ; ant, antenna ; fr, upper portion of frons ; fr', anterior 

 portion of frons ; g, gena ; Ir, labrum ; pc, postclypeus. 



Thorax. — Prothorax small, dark brown, hairy. Synthorax blackish 

 brown, with paired dorsal and lateral stripes of yellow, very similar to 

 those seen in U. carovei. The dorsal stripes are, however, broader than 

 those in V. carovei, and stand closer to one another towards the middle 

 line, leaving a narrower band of blackish brown along the mid-dorsal 

 carina. The metanotum and lower part of the mesonotum are densely 

 clothed with grey hairs, and similar hairs extend down on to the dorsal 

 part of the first abdominal segment, and less abundantly on to the second 

 also. Breast covered with long grey hairs. Legs entirely black. Wings 

 as in U. carovei 



Abdomen. — Shape narrow-cylindrical, segments 1-2 broader than the 

 rest. Sides of 1-2 less hairy than in U. carovei, the edges of the lateral 

 sheaths bordering the genital fossa almost hairless ; in U. carovei the hairs 

 on these parts are very distinct. Colour dark brown shading to black, with 



