92 



CIRCULAR 16 8, U. S. DEPARTMENT OF AGRICULTURE 



when only 10 per cent of the eggs of Dendrolimus spectabilis (listed 

 as remota Wlk.) were parasitized in pure plantings of pine, whereas 

 68 per cent were attacked in mixed plantings. 



STORED-GRAIN INSECTS 



The insect pests of stored grain here listed are largely of general 

 distribution throughout the world, and their general habits are too 

 well known to require repetition. The more extended publications 

 upon them are by Okuni (153) in Taiwan and Takasugi (195) and 

 Kazui (Jf5) in Japan and an anonymous article (2). These give ex- 

 tended accounts of the life histories of the more important species, 

 particularly of the weevils, with control experiments and measures 

 adapted to the methods of storage used in the various localities. 

 Such species as occur both in the field and in storage are discussed 

 among the field pests of the various crops. 



LIST OF STORED-GRAIN AND PLANT-PRODUCT INSECTS 



LEPIDOPTERA 



Pyralidae: 



Aglossa dimidiala Haw 



Ephestia glycinivora Mats 



Ephestia kuehniella Zell 



Paralipsa modesta But! 



Plodia inter punctella Hiibn.. 

 Pyralis farnaiis L 



Gelechiidae: 



Sitotroga cerealella Oliv 



Oecophoridae 



Anchonoma xeraula Meyr 



COLEOPTERA 



Ostomidae: 



Tenebroides mauritanicus L-. 



Cucujidae: 



Laemophloeus pusillm Schon 

 Oryzaephilus surinamensis L. 



Tenebrionidae: 



Hypophloeus floricola Mars. - 



Latheticus oryzae Wateih 



Palcrus ratzeburgi Wissm 



Distribution 



J. K. 

 J. 

 J. 



J. C. 

 J. 

 J. K. 



F. C. 



J. F. O. 



J. F. 



J. 

 J. O. 





Distribution 



coleopteea— continued 





Tenebrionidae — Continued. 





Tenebrio obscurus Fab-. 



J. 



Tenebrio tenebrioides Beauv 



J. 



Tribolium confusu m Duy . - . 



J. 



Tribolium ferrugineum Fab 



J. F. C. 0. 



Bostrichidae: 





Rhizopertha doimnica Fabr 



J. 



Rhizopertha hordeum Mats 



F. 



Bruchidae: 





Bruchus chinensis L 



J. F. C 0. 



Bruchus obtectus Say J 



Bruchus pisorum L 



Bruchus quadrimaculatus Fab. 

 Bruchus theobromae L 



Curculionidae: 



Sitophilus granaria L 



Sitophilus oryzae L 



Anobiidae: 



Lasioderma serricorne Fab 



Sitodrepa panicea L 



ACARINA 



Tarsonemus hordei Kishida. 



F. C. O. 



F. 



F. 

 K. F. 



F. C. O. 



^Distribution symbols are as follows: J, Japan; K, Chosen (Korea) ;F,Taiwain (Formosa); C, China; and 

 O, Okinawa (Loo-choo or Riukiu Islands). 



LITERATURE CITED 



(1) Anonymous. 



1924. on a teichopteron injurious to EiCE. Jour. Hokkaido Agr. Soc. 

 no. 282: 173-177. 



(2) 



1924. STUDIES ON STORED-GRAIN INSECTS AND THEIR CONTROL. I. Byokill- 



gaicliu Iho [Jour. Path, and Ent.] 13: 1-55, illus. 



(3) Abe, Y. 



1918. INJURY TO SILKWORMS BY CATERPILLARS OF THE GOLD-TAIL MOTH. 



Sangyo Shiinpo [Jour. Silk Indus.] no. 304: 890-894. 



(4) Aizawa, T. 



1924. STUDIES ON DENDROLIMUS SLBERICUS TSHVR. (LASIOCAMPIDAE) IN THE 



kurile islands, japan. Hokkaido Imp. Univ., Col. Agr. Expt. 

 Forests Research Bui. 10, p. 101-147. 



(5) Akashi, H. 



1908. ON TWO species of arctiidae, diacrisia blfasciata BUTL. AND d. 



OBLIQUA WALK., INJURIOUS TO MULBERRY TREES. Dai Nippon No 



Kwaiho [Jour. Agr. Soc. Japan] 188: 10-11. [Not seen.] 



