188 Rev. A. E. Eaton on new species of 



tip, and the radius near its extremity, are rufo-piceons or warm 

 amber-brown, as well as the cross-veinlets adjoining them, and 

 from certain standpoints many of the other cross-veinlets become 

 piceous. Cross-veinlets of the marginal area simple ; in both 

 sexes about 24 in number. 



5 . Similar to the ^ , but with the cross-veinlets in the disk 

 of the fore wing more generally piceous. Length of body, ^ and 

 ? 7; wing, c? 7, ? 9; setae, ^ 15 and 12—18 and 14, J 11 mm. 



3. Rhoenanthits amahilis, sp. nov. 

 Imago (dried), ^. — Remarkable for the excessive smallness of 

 the forceps, which in both of the specimens are quite rudimentary. 

 Cross-veinlets of the fore wing pitch-brown, with narrow edging 

 of the same colour, which in some parts is triangularly dilated at 

 both ends of the veinlets, in other parts fills up meshes of the 

 reticulation so as to form small spots, and along the terminal 

 margin, where the neuration is closest, produces a cloudy marbled 

 reticulation. Thorax light pitch-brown, approaching intense raw 

 umber, modified on the mesonotum with a lighter tint. Abdomen 

 rather darker than the thorax at the sides and hinder borders of 

 the segments, but with dull whitish ochreoiis markings along the 

 middle of the dorsum, comprising, in segments 7 — 9, a rounded 

 median spot at the base, a dot on each side near the base, and two 

 dots on each side before the dark apical border of the segment. 

 Setae white, with dark purple-madder annulations at the tips of the 

 joints : in the first seven joints from the roots, the dark colouring 

 largely predominates ; after that, throughout the greater part of 



Rhocnanthus amahilis (Tenassorim Valley). 



the seta, the annulations are alternately narrow and broad, one 

 joint being almost entirely white, and the next joint purple- 

 madder in its apical half, and so on ; the last three or four joints 

 are pilose, as in Potamanthus. Forceps very minute ; the limbs 

 2-jointed, much shorter than their distance apart, not exceeding 

 in length one-third of the width of the basis, and being much 

 smaller than the produced posterior lateral points of the 9th dorsal 

 sc<^ment ; their colour white, but purple-madder just at the base. 

 Ponis-lobcs more minute than the forceps, filiform or subulate, 



