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



Svastra hombylans (Holmberg). 

 Bahia Blanca, Argentine {Bruner, 2). 



Xenoglossa crawfordi, Cockerell. 

 Guanajuato, Mexico [A. Dur/es). 



Culletes pioictipennis, Cressou. 



Brownsville, Texas, 194)8 [Jones ^' Pratt). 

 New to the United States. 



Pseudomelecta californica miranda (Fox). 

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



Megachile anthracina, Smith. 

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



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

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



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



This very destructive wlieat-pest has been studied in great 

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

 publislied figures and descriptions of it in all its stages in Mem. 

 Dept. Agric. India (Chemical Series), iv. G, 191G, p. 172) 

 under the name Attagenus iindulatus, Motsch. As already 

 stated in a footnote in the ' lleview 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- 

 latus 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 reported me (Agric. 

 liesearch 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- growing latitudes. 



Specimens found in imported wheat have been received 

 at the British Museum during many years past, and I have 



