the Early Stages o/Paltostoma scliineri. 195 



tarsi and claws of Williston's c^ co-type, and of the ? ? 

 described by Lamb, agree closely with those of the 

 (J before me. 



VI. The Female Imago. (PL XI. figs. 16, 17.) 

 (By C. G. Lamb.) 



? . Head. — Eyes with no unfacetted cross-line and with 

 all the facets equal ; minutely, densely, and palely pubescent. 



Top vieiv (fig. 16j. Bead much rounded behind, dark 

 orange; this colour extends beyond tlieocellar hump, whence 

 it is further continued in a broad line to the base of the an- 

 tennae, the stripe narrows towards the front ; on each side of 

 it lies a silvery stripe of about the same width, which extends 

 right up to the boundary of tiie eyes. The ocellar hump is 

 in the shape of a tetrahedron, with much rounded angles ; 

 it is deep black with conspicuous silvery ocelli arranged iu 

 an equilateral triangle round the base of the hump. 



i-ront vieiv. The face is quite parallel-sided from below the 

 autennie, orange-yellow with nan-ow silvery eye-margins ; 

 the Cjjistoma is divided from the clypeus by a silver-edged 

 furrow ; the clypeus itself is coucolorous with the face, and 

 has silvery borders and a fine silvery cross-band; the pro- 

 boscis is a little more than twice as long as the maximum 

 vertical eye-depth ; it is orange-yellow with an acuminate 

 tip ; the palpi are black, about as long as the head-depth, 

 with three or four indistinct, pyriform, somewhat hairy joints 

 of almost equal length, which are a little fiatteued in the 

 dried state. The antennae are black, except the two basal 

 joints which are vei'y indistinctly rufous; first joint with 

 two or three long hairs outside, second long, cup-shaped, 

 others moniliform. 



In side view (fig. 17) the black rounded ocellar hump 

 is very prominent, the tongue below the level of the palpi 

 attenuates but little to tip. 



Thorax. — Top vieiv (tig. 16). The mesothorax overhangs 

 the prothorax lu front ; it is shining orange, much darker 

 in front, with silvery reflections on darker areas at the sides; 

 there is a minute silvery spot just in the middle over the 

 prothorax ; the humeral calli resemble stout orange scales at 

 the front angle ; behind the dark front portion the disc is 

 paler orange down to the two oblique sutures that start just 

 above the front of the wing-ba^es, and slope backwards and 

 nearly meet in the raid-line, where they end in minute dots. 

 Just in front of these sutures the orange is again darkened 

 and silvery in two triangular patches, the hypothenuscs of 



