XVII. DEvSCRIPTIONS OF INDIAN 

 BEETLE LARVAE. — III.' 



By F. H. GravEIvY, D.Sc, Asst. Supdt., Zoological Survey of 



India. 



(With Plate XIV.) 



In this paper LameUicorn larvae only are dealt with. The 

 Passalid larvae have been identified solely by their association with 

 adults. In all other cases pupae or newly emerged adults with 

 their cast larval skins have been examined, 



PASSALIDAE. 



For bibliography and descriptions of other larvae see Gravely, 

 1916, pp. 138-145, Pl. XX, figs. 1-4. 



The importance of the anus in the classification of Passalid 

 larvae appears hitherto to have escaped attention. In the Aula 

 cocyclinae (pl. xiv, fig i) and Leptaulacinae the lower margin 

 is deeply cleft, and this appears to be the case in the Pseud- 

 acanthinae and Passalinae also, though different observers describe 

 it in somewhat different terms. In the MacroUninae, on the other 

 hand, both Hps are as a rule entire (pl. xiv, fig. 3), the only excep- 

 tion known to me being Macrolinus; in this genus (pl. xiv, fig. 2) 

 the cleft found in other subfamilies, though not actually present, 

 is represented by a distinct suture. 



Taeniocerus bicuspis, Kaup. 

 Pl. xiv, fig. I. 



Lorality. —A'isam: above Tura, Garo Hills, 3»5oo-3.90C> ft. 

 Four larvae, about 18-22 mm. long, collected by Mr. S. W. Kemp, 



The head bears a single hair behind each antenna. ^ All three 

 thoracic seginents bear two hairs on each side, arising close 

 topther, one behind the other, at the level of the stigmata ; a.ii the 

 first bears an additional hair about half way between these hairs 

 and the stigma The first nine abdominal segments all bear one 

 hair on each side above the level of the stigmata, and a second is 

 present above these on the last three or four segnents and sorae- 



1 I. "The Larvae and Pupae of some beetles from Cochin." I^ec. hid. Mtis. 

 XI, 1915, pp. 353-366, pl. xx-xxi. 



II. "Some Lignicolous Beetle-Larvae from India and Borneo," Rec. 

 Ind. Mus. XII, pp. 138-175, pl. xx-xxii. 



