NOVITATES ZOOLOGICAE XXIII. 1916. 121 



11. Macroglossum amoenum spec. nov. 



?. M. passalo similis, sed mnlto minus, alis anticis fascia nigro-brnnuea 

 anteniediana magis obliqna, posticis fascia flava latiore, abdominis segmentis 4°, 

 5°, 6° lateribus albo-penicillatis. 



Al. ant. long. 195 mm., lat. 8 - 5 mm. 



Hab. Sungei Liat, Banka Island ; 1 ? . 



Easily separated from M. passalus Drury (1773), apart from its small size, 

 by the lateral tufts of the three segments preceding the tail being tipped with 

 white, and by the oblique position of the antemediau baud of the forewing, the 

 outer edge of this band being at the hindmargin as far distant from the base 

 as at the costal margin. This latter characteristic also distinguishes amoenum 

 from fringilla Boisd. (1875). 



Upperside of palpus, head and thorax smoke-grey, with black-brown median 

 stripe, sides of mesothoracic tegulae bright walnut, this colouring sharply defined ; 

 palpus as long as in passalus, longer than in fringilla. Upperside of abdomen 

 nearly as in passalus, the two yellow side-patches small, a vestige of an anterior, 

 third, patch on second segment, the two grey spots at the base of the seventh 

 tergite very conspicuous, more so than in passalus, lateral tufts of segments 4 and 5 

 white, the tuft of 5 particularly conspicuous, tuft of 6 brown with the extreme 

 tip white, tail as in passalus tipped with pale hazel. On underside, the palpus 

 white, with a dark brown stripe in front of the eye, breast greyish white in centre, 

 clayish brown at sides ; legs clayish brown shaded with hazel in parts, the long 

 scales of the hindtibia with whitish tips ; abdomen pale hazel, greyish at base in 

 the centre, tail chestnut tipped with hazel. 



Wings, upperside. General coloration of forewing as in passalus, the basal 

 area a little paler, slightly more contrasting with the black-brown antemedian 

 band; this band is nearly H mm. broad at the costal margin and widens almost 

 suddenly on the proximal side below the submedian vein, its outer edge being 

 about mm. distant from the base throughout, forming an obtuse angle with the 

 hindmargin of the wing, while in passalus and fringilla the angle is somewhat less 

 than 90° ; pale median interspace much shaded with purplish grey ; blackish brown 

 postmediau baud as in passalus, but more oblique and less angulate ; a costal 

 patch outside this band, posteriorly bounded by W, much shaded with purplish 

 grey, sharply defined ; a diffuse, but very distinct submarginal band of the same 



purplish grey scaling extends from apex to hind angle, narrowing at both ends. 



Hindwing : the orange-yellow band sharply defined, a little over 3 mm. wide 

 in centre ; black-brown margiual border of about even width from below costa 

 to below middle, where it is as broad as the orange-yellow band, and then 

 gradually narrows to a point, the inner margin of the border slightly denticulate, 

 but not distinctly angulate, the border proportionately narrower than in passalus, 

 especially the posterior portion. 



Underside duller red-brown than in passalus, almost like burnt-umber faintly 

 shaded with drab ; the lines less distinct than in passalus. 



12. Macroglossum poecilum R. & J. (1903). 



Macroglossum insipida pozcilum Rothschild & Jordan, Nov. Zool. ix. Stippl. p. 643. no. 579 c. pi. 3. 

 fig. 17, £ (1903) (Luo Choo Is.). 



When describing this insect from two Loo Choo specimens we said that it 

 was perhaps a distinct species. We have now, from the van de Poll collection, 



