180 MR. W. A. FORBES ON THK KOA.L.4. [Jail. 18, 



Hydrocampid^. 



Oligostigma incommoda, sp. n. (No. .540). 



Nearest to O. curvifera of North America. Snow-white : the pri- 

 maries above crossed near the base by an angular brownish band 

 (probably pale orange with black margins in fresh examples) ; 

 second band pale orange with black margins, beginning beyond the 

 cell in the form of a 3, the lower extremity of which is carried below 

 the median vein to the origin of the first branch, where it turns off at 

 an angle, and runs transversely to the inner margin ; a black-edged 

 transverse pale-orange spot closing the cell ; a blackish-edged pale 

 orange sinuated submarginal band ; outer border apparently pale 

 orange, edged internally with black scales : secondaries crossed near 

 the base and at the middle by bands of black scales ; an irregular 

 black-edged orange discal band, its outer margin zigzag ; outer 

 border pale orange, edged internally with black. Under surface 

 uniform snow-white. Expanse of wings 9 lines. 



One female specimen so much rubbed that only familiarity with 

 the genus enables one to trace the direction of the bands on the 

 primaries. 



EXPLANATION OF PLATE XVIII. 



Fig. 1. Teracolus niveus, c? and J (upperside), p. 177. 



2. Teracolus candidus (upperside), p. 178. 



3. S'l/ncMoe anomala (iDoth siu-faceg), p. 178. 



4. Hypanis cora (underside), p. 177. 



5. Acrcea neobide (underside), p. 177. 



6. Charaxes balfmiri (both surfaces), p. 176. 



7. Calysisme socotrana (both surfaces), p. 175, 



8. Hesperiajuomida (both surfaces), p. 179. 



3. On some Points in the Anatomy o£ the Koala {PhascO' 

 larctos cinereus). By W. A. Forbes, B.A., F.L.S., 

 r.Z.S.; Prosector to the Society. 



[Eeceived January 17, 1881.] 



On April 28th of last year (1880), as already recorded in the 

 Society's Proceedings ', the Society purchased for its collection the 

 first living Koala (PAa«co/arc/os c;we>-eM«^ ever brought to Europe. 

 The animal, a young female, continued to do well and thrive after 

 its arrival at the Gardens, and on a diet of fresh Eucali/ptus-\eR\es, 

 which were substituted after a while for the dried ones on which it 

 had been kept alive during the voyage and the first part of its stay 

 in this country, became daily in better condition and more active. 

 Being a pet animal, accustomed to being caressed, it was thought 

 better not to put it in a cage ; so a room for its use was fitted up in 

 the Superintendent's office. Here, under the charge of a special at- 



^ P. Z. S. 1880, p. 355 ; where a woodcut of it, from the pencil of Mr. Wood, 

 is given. 



i 



