20 Records of the Indian Museum. [Vol. XVI, 



tooth on inner margin, just below this tooth on the upper, 

 flattened part of the mandible there is a patch of dense, silky, 

 recumbent, light brown hairs, a shallow groove on the inner margin 

 of each mandible along its attenuated portion, mouth light brown 

 with two brushes of silky hairs interspersed with a few spinose 

 hairs, visible only from above. Antennae three-jointed, basal 

 joint whitish, very stout, a little shorter than second which is 

 longest, second joint whitish with a dark line on its inner area, 

 third joint very short, light brown, a few stiff, brown hairs at 

 the apex of the second and on the third joint. Eyes very small, 

 situated a little within the lateral margins of the head, almost 

 immediately behind the bases of the antennae. Pronotum black, 

 with two longitudinally oblique, discal fasciae, broadened anteriorly 

 and narrowed posteriorly, extending from the anterior margin to a 

 little before the middle of the disk and the lateral margins broadly 

 yellowish ochraceous. lateral and posterior areas of disk rugose, 

 anterior margin rounded, lateral margins oblique, the sides slightly 

 recurved, posterior lateral angles rounded, the posterior margin 

 slightly concavely sinuate near middle, a narrow longitudinal 

 sulcation on middle of disk which extends nearly throughout 

 the dorsal segments, a rather deep, oblique depression on each 

 side of central area of disk; meso- and metanotum broader than 

 pronotum, discally black and strongly rugose, with some pits 

 or depressions, lateral areas similar in colour to those of pronotum, 

 lateral margins almost straight, posterior margins very slightly 

 concavely sinuate. Abdomen with the first seven segments black , 

 the greater part of their posterior lateral areas broadly yellowish 

 ochraceous and their lateral and posterior areas faintly rugose, the 

 posterior margins of the sixth and seventh segments are broadly 

 concavely sinuate, their posterior lateral angles being obtusely 

 rounded, eighth segment much smaller than preceding segments, 

 black with a whitish patch on each antero-lateral area, ninth segment 

 almost entirely black with a very fine pale yellow line bordering 

 its posterior margin, which is almost semicircular, its lateral 

 margins rounded. Underside black with the head beneath light 

 brown, margined with black. Membrane connecting sternal seg- 

 ments milky white. The ventral surface of each of the second ab- 

 dominal segments to the ninth bears four longitudinal ridges, each 

 ridge being furnished with a brush of short, stiff brownish hairs or 

 bristles, which are easily broken off. A cluster of soft filamentous 

 processes, which can be protruded at will, situated at the apex 

 of the abdomen. The use of this appendage is explained on 

 p. 22. 



The first larva that attracted my attention was one brought 

 by Dr. N. Annandale from Rambha, in the Ganjam district of the 

 Madras Presidency in August, 1917. As soon as it woke up from 

 its day's sleep it protruded its head about a quarter of an inch 

 be3'ond the pronotum and commenced walking quickly about 

 the floor of the cage in search of a snail. On finding a snail it 

 examined it carefully and if it found that the snail had retracted 



