No. 1.] E. P. Stcbbing — On the Bostrichidae of the Indian Region, 25 



give rise to a generation of beetles in the second or third week of 

 June. These at once lay eggs which produce another generation of 

 beetles towards the end of July. This generation on emerging lays 

 eggs immediately and larvae are to be found in the bamboos in 

 August, a fresh generation of beetles issuing between the first and third 

 weeks of September. These lay eggs from which another generation 

 of beetles makes its appearance about the middle of October, this 

 latter being the fifth generation produced in the year. The genera- 

 tions, however, although fairly well defined, overlap and it is possible 

 to find beetles at any time between April and October. 



5. Dinoderus brevis, Horn. 



Horn, 1878, Proc. Ann. Phil. Soc, XVII, p. 550. 



Greatly resembles minutus, F. Differs in its more convex form 

 and in its n-jointed antennas. Dorsal punctuation of the elytra 

 less dense than in minutus and not serried. The erect hairs on the 

 posterior declivity of the elytra less dense and slightly longer, 

 cylindrical or subclaviform, not pointed. Long. 2^ — 3I millm. 



$ The two median teeth of the marginal row of the rasp-like 

 anterior portion of the prothorax are larger, wider apart and more 

 prominent than in the <J. 



Distribution. — Lesne gives its distribution as throughout India, 

 Burma— Teinzo (in May), Rangoon (May-July) (L. Fea). 



Unrepresented in the collections. 



Life-History, — I can find no record of any observations upon 

 the life-history. 



Genus Mhizopertha, Stephens. 



(See Table of Genera 1,3). 



Stephens 1830, 111. Brit. Ent., Ill, p. 354.— Wollaston, 1854, Ins. Mader. 

 p. 286. — Lacordaire, 1857, Gen. Col., IV, p. 534 and 541, J. Duval and Fairmaire, 

 1863, Gen. Col., Ill, p. 231. — Redtenbacher, 1872, Faun, austr., 3rd. ed., p. 66.— 

 Kiesenwetter, 1877, Nat. Ins. Deutschl., Col., V, p. 40. — Lesne, Ann. Soc. Ent, 

 Fr. 1897, p. 322. 



6. Mhizopertha dominica, Fabr. 



Fabricius, 1792, Ent. Syst, I, 2, p. 359. 

 J>usilla Fabricius, 1798, Suppl. Ent. Syst., p. 156. Stephens, 1830, 

 111. Brit. Ent., Ill, p. 354. Fairmaire, r85o, Rev. et. Mag. de Zool.i 

 2Q Sen, II, p. 50. Wollaston, 1854, Ins. Mader., p. 287. J. Duval 



