190 



NOVITATES ZOOLOOICAE XXVI. 1919. 



SOME SPHINGIDAE FROM THE EAST. 

 By dr. KARL JOLDAN. 



(With three text-figures.) 

 1. Oxyambulyx phalaris Jord. (1916). 



$. Oxyamhvlyx wildei, Rothschild & Jordan {err. detenn.), Nov. Zool. ix. Suppl. p. 204 no. 165. 



pi. 8. fig. 4. 9 nee fig. 3. cj ; Milne Bay. 

 (J. Oj-yam'mlyx phalaris Jordan, in Scitz, Orossschmett. x. pi. Ole (1910). 



The series of Oxyambulyx which we have received from New Guinea since 

 the publication of the Revision proves that there are two species side by side, 

 differing in colour and structure. The two specimens which we had when we 

 wrote the Revision were referred by us to 0. wildei Misk. (1891), and we find 

 now that only the male belongs to that species, while the female is an example 

 of the new species, which is the larger of the two. 



c?. Wings, upperside. Forewing drab brown in fresh specimens, more fawn- 

 colour in somewhat worn ones, much darker than in 0. wildei ; for markings 

 cf. figures [11. cc.) ; the terminal band broader than in 0. wildei ; the oKve- 



black submarginal Une more than twice as broad as in wildei. Hindwing, more 



deeply coloured than in wildei ; the brown speckling denser, and the basal 

 patch less contrasting than in wildei. 



Underside. The dark scaling a deep chestnut in the distal area of the wings, 

 the lines blackish, the limbal band drab, and the proximal area shaded with 

 drab ; abdominal area of hindwing more or less pure drab. 



Body more deeply coloured than m O. tvildei, particularly on the under- 

 side, which is more or less deep chestnut colour. 



?. Body and wings, on the upperside, of a pale chocolate tint slightly washed 

 with drab. Markings and underside as in the male. Anal tuft deep chestnut, 

 appearmg almost black. 



Genitalia. $. Apical margin of eighth sternite slightly incmved laterally, 

 excurved medianly, the broad and very short lobe thus formed somewhat curved 

 upward ( = inward), but its angles not tubercuUform. Harpe differs from 

 that of 0. wildei as follows : in wildei the ventral process is long and narrow 

 (text-fig. 2) , while in pluilaris it is short and broad (text-fig. 1) ; the upper process 

 is much slenderer in phalaris than in wildei and sharply pointed, and there are in 

 phalaris no teeth proximaUy to this process, the ridge extending from the process 

 basad being smooth. The long serrate ridge of the penis-sheath is nearly straight 

 in wildei, and reaches beyond the apex of the apical process of the sheath ; in 

 phalaris the ridge is curved about halfway round the sheath, and therefore 



does not reach to the tip of the apical process. ?. The eighth tergite is medianly 



sinuate in both species, but the sinus is rather deeper and the lobes much less 

 broad in wildei than in phalaris. The vaginal cavity, in plmlaris, is continued 

 on to the postvaginal plate by a median depression which is flanked on each 

 side by an obtuse longitudinal ridge ; in wildei, on the contrary, the cavity is 



