THERETRA. 451 



lower surface slightly hollowed, wrinkled, with a rounded 

 mesial ridge from base to shaft. Colour pale yellowish- 

 brown ; legs dotted with black ; abdomen dotted with black, 

 these dots forming an obscure dorsal and similar latero- 

 ventral stripe ; a narrow interrupted ventral stripe ; spiracles 

 black, the ridge behind that on 2 dark brown, and the rims 

 round the slits reddish-brown ; cremaster dark reddish-brown, 

 shaft and points black. Length 40 mm. ; breadth 11 mm. ; 

 tongue-sheath projecting 3 mm. in front of head. 



Habits. — Food-plants : Corchorus capsularis Linn., family 

 Tiliacese ; Impatiens Linn., family Geraniacese ; Vitis Linn., 

 family Ampelidese ; Careya arborea Roxb., family Myrtacese ; 

 Jussisea sujfruticosa Linn., family Onagracese ; Oldenlandia 

 corymbosa Linn., family Rubiaceae ; Ipomdea batatus Lamk., 

 and many plants of the family Aroidese (arums). The thin 

 horn is movable in a vertical plane in all instars. The moth 

 is often caught feeding at flowers at dusk, and is also attracted 

 by light. 



165. Theretra pinastrina pinastrina (Mart.). (PI. VI, fig. 6, 

 larva, fig. 7, pupa). 



Sphinx pinastrina, Martyn, 1797, pi. xxix, fig. 81, pi. xxx, fig. 85 



(Hab. ?). 

 Xylophanes pinastrina, Moore, 1882, p. 18, pi. lxxxvii, fig. 2. 

 Theretra pinastrina pinastrina, Roths. & Jord., 1903, p. 784 ; 



Mell, 1922, p. 310, pi. xi, figs. 12-18 (figs. 18-24) (larva), pi. xiv, 



figs. 11-13, pi. xix, figs. 19-21 (pupa), pi. xxxi, figs. 15, 16 (?) ; 



Seitz, 1929, p. 567 (non t. 68 c). 

 Chserocampa silhetensis, Walker, 1856, p. 143 (partim) ; Butler, 



1877 B, p. 560, pi. xcii, fig. 8 (larva, pupa) ; id., 1881 B, p. 8, 



pi. lxxix, fig. 6 ; Hampson, 1892, p. 88. 

 Chserocampa bisecta, Moore, 1857, p. 278, pi. xi, figs. 5, 5a (Java; 



N. India) ; id., 1865, p. 794 (Bengal). 



Imago. — ^$. Similar to oldenlandia, but much paler ; 

 abdomen with a single dorsal line. Fore wing with a brown 

 oblique discal band as in oldenlandia ; interspace between 

 lines 3 and 4 more or less silvery, line 4 distinct ; interspace 

 between 4 and 5 broad, not silvery ; line 5 heavier than 6. 

 The amount of black on hind wing variable ; there is some- 

 times a narrow discal band consisting of two indistinct lines, 

 besides the marginal band. Expanse : £ 60-70 mm., £ 72 mm. 



£. Tenth tergite slender, slightly curved, subcarinate above, 

 apex compressed, rounded- truncate ; sternite : upperside 

 transversely ribbed at the margin, apical margin notched. 

 Harpe long and slender. Armature of penis -sheath narrow, 

 ribbon -like. 



Hab. E. Himalayas, S. India, Ceylon and Burma to 

 Japan and Malaya. We have bred it in S. India, where it is 

 common in open country with moderate rainfall. 



2g2 



