( IP^ ) 



tergites densely sjiiimlose at the edges ; stemites with very few, long and weak, 

 spinuk's. Tibiae not spiuose ; foretibia ending in a long thorn, shorter than first 

 tarsal segment (thorn excluded), spur of foretibia long, nearly reaching end ; mid- 

 and hindtibia longer than first tarsal segment; two pairs of spnrs to hindtibia, 

 longer terminal sjmr about one-third the length of the first tarsal segment ; 

 pulvillus small, paronychiiim with two very short lobes at each side, the ventral 

 lobes merely vestigi.al. Distal margins of wings slightly scalloped ; R- of hind- 

 wing central, D^ somewliat angled, D^ half the length of D', SC" and R' on a stalk. 

 Frenulum and retinaculum present. Clasper and eighth sternite without organ of 

 friction ; eighth sternite simple (c?). 



Larva and pupa not described. 



Ilab. Akbes, Syria. 



One species. 



15.5. Akbesia davidi. 



*Snierinlhus daviili Oberthiir, I.e. (Akbfe'! ; — coll. Charles Oberthiir) ; id., El. Eiit. ix. p. 29. t. 2. 



f. 6 (1884). 

 Dtinipsa (?) ihi.vidi, Kirby, Cut. Lep. Het. i. p. G71. n. '.) (1892) (As. min.). 



i ?. The long series of specimens which we have seen did not exhibit much 

 individual variation. The bindwing is in some individuals paler yellow than 

 ordinarily. The nearest relatives of this fine Sphinx are tlie species of the genus 

 lintocnema from East Africa and Madagascar. 



t?. Tenth tergite long, narrowed to a finger-like process, which is pointed and 

 somewhat compressed; sternite produced into a broad mesial plate, which is broadly 

 sinuate, with the rounded lobes slightly projecting laterad, upperside of plate densely 

 beset with short setae at and near the edges (PI. XXIIl. f. 22). Clasper broadly 

 sole-shaped, apex rounded ; liarpe represented by a small subbasal, broadly 

 triangular ridge, which bears an obliquely vertical carina (PI. XXXI. f. 9). Penis- 

 sheath without special armature, apical edge produced on one side, the lobe bent 

 inwards, fused with the membrane of the duct. 



?. Eighth tergite scaled, mesially grooved, lobes rounded (PI. XV. f. 13). 

 Vaginal plate also feebly chitinised, distal margin evenly rounded, no special 

 armature (PI. XV. f. 12). 



Early stages not described. 



Hah. Akbes, Syria. 



Apparently not rare. 



A very long series in coll. Charles Oberthiir. 



In the Tring Museum 6G specimens. 



LI. OXYAMBULYX gen. nov.— Typus : suh.tfrir/in.t. 



Sphiti.r (Amhnli/.r), Westwood, C<i)>. Or. Kiif. p. (il (1848) {mim. imhsn:). 

 Amhnli/x Walker, Lixt Lcp. Ins. B. M. viii. p. 120 (18.'j(l) (partim ; type : .■^IriijiUx). 



6 ? . Difters from Protambulyx in the following characters : end-segment of 

 antenna compressed, bottle-shaped or conical in side-view (PI. LX. t 5), variable 

 in length, but at least four times as long as the preceding one, which is longer than 

 high, two bristles at end and several others on the lateral and ventral surface, 

 dorsal surface of segment covered with appressed scaling. Head with a siiarp 



