36 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XI, 



band. Tapena thwaitesi, Moore, has been placed in this group, as it 

 evidently is most intimately related to the imagos of the group ; 

 its larva is somewhat abnormal in the shape of the head, and the 

 pupa in not having spiracular expansions to segment 2. 



193. Tapena thwaitesi, Moore. (Plate VIII, Fig. 5.) 



The imago is common throughout the damper parts of the district 

 in the cold weather and rains ; it is of fast flight, but rests often on 

 the upperside of leaves generally, though we have seen it also pitch 

 on the under surface of leaves in the same way that all the other 

 members of the group do. We have bred many. Specimens bred in 

 the wet months are darker than those bred in the dry ones. 



Larva. — Head with lobes rounded on the vertex ; less prominent 

 than in any other of the group, beiug shallowly, though broadly in- 

 dented ; very thin through ; of a yellow colour more or less suffused 

 with dark brown on the upper part, with a marginal red line. Body 

 pure opaque white tinged with blue. Length 22 mm. 



Pupa. — The pupa is square in front, with a short beak between the 

 eyes, and no spiracular expansions to segment 2. The colour is 

 greenish-white, waxy-looking. Length 17 mm. 



Habits. — The imago lays many eggs on the young shoots of the 

 plant, but always singly. The young larva on emerging proceeds at 

 once to make a cell by turning over a piece of the edge of a leaf on to 

 the top and scollops the edge of the cell. It pupates in the cell ; the 

 pupa is attached by the tail and by a body-band. The larva feeds on 

 Dalbergia latifolia, D. tamarindifolia and D. volubilis. 

 194. Celcenorrhinus leucocera, Kollar. 



The insect is fairly common both below and above the ghats where 

 there is heavy jungle ; it rests on the undersides of leaves ; it is very 

 easily captured. We have bred quantities of it. 



Larva. — Head very large, dark brown, nearly black, square from 

 front view, with a deep triangular broad indentation on the vertex, 

 rugose as to surface ; thick in the direction of the longitudinal axis of 

 the larva. Body more or less cylindrical, very fat and flanged some- 

 what on the margin, thickest towards the centre ; anal end narrowish, 

 rounded at extremity. Colour dark indigo-green; segmental margins 

 yellowish, and a dark pulsating dorsal line ; a thin white marginal 

 line. Length 28 mm. 



