Mr. G. J. Arrow on the Khapra Beetle. 481 



Svastra bombyfans (Holmberg). 

 Bahia Blanca^ Argentine [Bruner, 2). 



Xenoglossa crawfordi, Cockerell. 

 Guanajuato, Mexico [A. Duges). 



Colletes pnnctipennis, Cresson. 



Brownsville, Texas, 1908 [Jones ^ Pratt). 

 New to the United States. 



Pseudomelecta calif ornica iniranda (Fox). 

 Mexico (C. F. Baker collection, 2320;. 



Megachile anthracina, Smith. 

 Moulmein, L. Burma, Dec. 1910 {R. L. Wuglum). 



XLVII. — The Khapra Beetle (Trogoderma khapra, sp. n.), 

 an Indian Grain-pest. By GILBERT J. ARROW. 



(Published by permission of the Trustees of the British Museum.) 



This very destructive wheat-pest has been studied in great 

 detail by Messrs. J. H. Barnes and A. J. Grove, who have 

 published figures and descripfious of it in all its stages in i\Iem. 

 Dept. Agric. India (Chemical Series), iv. 6, 1916, p. 172) 

 under the name Attagenus xindulatus, Motscli. As already 

 stated in a footnote in the ' Review of Applied Entomology,' 

 V. 1917, p. 126, the insect is really a species of Trogoderma 

 and appears to be without a specific name. Attagenus undu- 

 latiis is quite a different insect, as I have established from 

 specimens in the British Museum received from Motschulsky 

 himself (see Ann. & Mag. Nat. Hist. (8) xv. 1915, p. 426). 

 Mr. Bainbrigge Fletcher has incorrectly nported me (Agric. 

 Kesearch Inst. Pusa, Bull. 59, p. 14) as saying that the 

 insect common in stored wheat in Northern India should 

 be known by this name. On the contrary, the distribution 

 I recorded shows A. undulatus to belong to tropical and not 

 wheat-orowing latitudes. 



Specimens found ni imported wheat have been received 

 at the British ^liiseum during many years past, and I have 



