8 Mr. E. E. Austen on new 



(S.-E. Madagascar), hut distinguished by presence of a icell- 

 marked, continuous, pale median stripe on dorsum of abdomen, 

 as also by certain differences i?t wing-marhings. — Dorsum of 

 thorax russet-coloured ; dorsum of abdomen, in fully coloured 

 specimens, munmiy-broivn, ivith a pale (j-aiv-sienna-coloured) 

 median longitudinal stripe ; antenna raw-sienna-coloured, 

 unicolorous, upper branch of third joint very sliort, merely a 

 forwardly directed tooth ; wings nearly lijialine, with, in distal 

 half, two conspicuous sepia-coloured blotches resting on costal 

 border. 



Head buff or orange-buff pollinose (occiput smoke-grey), 

 basioccipital region sparsely clothed with yellowish hair ; 

 front slightly broader below ; ocellar spot greyish clove- 

 brown; frontal callus tawny or tawny-ochraceous, narrow, only 

 slightly expanded below, its upper extremity linear ; eyes in 

 specimens preserved in spirit dark bronze-green, without 

 bands ; yja/yji buff, proximal joint clothed with yellowish 

 hairs, terminal joint clothed on outer side Avith minute black 

 hairs; first and second joints of atitenna clothed above and 

 on outer side with minute black hairs. Thorax: dorsum, 

 including scutellum, clothed with minute, appressed, pale 

 buff-yellow hairs, prealar callus on each side clothed with 

 dark brown hairs; pleurae and pectus cream-buff", covered 

 with pearl-grey pollen, and sparsely clothed with whitish 

 hair. Abdomen: median dorsal stripe varying in width in 

 dili'erent specimens (sometimes very narrow on Ihird and 

 following segments), extending from base of abdomen to 

 hind margin of sixth segment ; imperfectly coloured speci- 

 mens sometimes moie or less pale (dull ochreous) on first 

 two or three segments, on each side of median stripe; 

 dorsum clothed for most part with minute, appressed, black 

 liairs, but on median stripe and on lateral margins with 

 similar pale yellow hairs, which also more or less predominate 

 generally on fourth and fifth segments, besides clothing hind 

 border of third segment ; venter buff" or ochraceous-buff, 

 clothed with appressed yellowish hairs. fJ ings : the two 

 main sepia-coloured blotches are situate as follows : firstly, 

 a blotch includes the conspicuous, mummy-brown stigma, 

 and then, narrowing considerably, cither terminates on the 

 third longitudinal vein (or in the first submarginal cell 

 before reaching that vein), or extends across the wing to 

 the bottom of the distal extremity of the discal cell, enclosing 

 the posterior transverse vein, filling the extreme bases of 

 the second and third posterior cells, and sometimes even 

 extending into the angle in the upper margin of the fourth 

 posterior cell ; secondly, a blotch which occupies the distal 



