No. 1.3 E, P. Stebbing — On the Bostrichidae of the Indian Region. 35 



Differs from B. parallela in having the 2nd tarsal joint not or only 

 very slightly wider than the last. The scales on the centre of the 

 posterior surface of the pronotum are a little larger. $ . Forehead 

 without pubescence. Body more elongate than above species. The 

 abdominal punctuation is very fine and less dense in the middle than 

 at the sides. Length 9^ to 13 millim. 



Only the % is known. The species is closely allied to B. parallela 

 and affinis. The absence of the dense frontal pubescence dis- 

 tinguishes it at once. In addition the ? is not a heteromorphous one 

 like those of the above mentioned species: the anterior angles of its 

 prothorax are prolonged into horns curved downwards and recurved 

 at their tips. TI12 absence of the frontal pubescence distinguishes it 

 at the first glance from B. parallela. 



Distribution.~"~Benga\, Chota Nagpur, Mynpoore, Sind. 



Unrepresented in Coll. Ind. Mus. Calc., etc. 



Life-History.— Little appears to be known under this head at 

 present. 



Characters of Group III (see above). 



Differs from Group II in the posterior tibiae bearing some hairs on 

 their outside edge. The golden velvety patches on the articulations 

 of the antennal club well-marked. The marginal groove of the elytra 

 gradually thinning out behind. The deep pits on the back of the 

 elytra reniform in shape near the suture. 



Heteromorphous 6*. Prothorax prolonged into horns at the 

 extreme angles. The posterior surface of the pronotum furnished 

 with a sculpture resembling imbricate scales. The apical declivity 

 of the elytra with only one marginal callosity on each side, the upper 

 one being absent. (Mr. Lesne adds to this — Beneath the lateral 

 calus, in the case of the 6* only, an additional calus is present, 

 triangular, shining, and separated from the edge of the elytra by the 

 marginal groove.) 



Heteromorphous $ . Anterior edge of the prothorax truncate or 

 slightly indented, the anterior angles not prolonged into horns, only 

 indicated or toothed on the outside. The posterior surface of the 

 pronotum covered with flat granulations. Marginal callosities of the 

 apical declivity obsolete or less marked than in the $ . 



Homeomorphous ? . Resembles the preceding one but has the 

 anterior angles of the prothorax prolonged into horns less curved 

 and much shorter than those of the <$ . 



10. Bostrichopsis jesuita, Fabr. 



Fabricius, 1775, Syst. Ent., p. 54. — Id., 1792, Ent. Syst., I, 2, 

 p. 361. — Boisduval, 1835, Voy. Astrol., II, p. 461. 



D 2 



