36 



A MANUAL OF DANGEROUS INSECTS. 



Species: M. loti Paykull; seed of Lotus and Lathyrus. M. atomarius Linnaeus; very 

 common; Vidafaba, Lathyrus, Vicia sepimi, etc. * 3/. nf^jnawis Boheman; Europe, 

 North Africa, Egypt, Persia, Syria, introduced into California; beans, peas. 



An important pest. M. affinis Fro- 

 lichs; France, imported into Ireland 

 and East Indies; beans. * M. piso- 

 rum Linnaeus; distributed from 

 Orient until now cosmopolitan; a 

 very serioUs pest; peas. Vicia, 

 Cytisus laburnum. (See text fig. 

 20.) M. lentis Frolichs; Europe, 

 Egypt, Syria, lentils. M. pallidi- 

 rornis Boheman; lentils. ^Acan- 

 thoscelides obtectus Say; now cosmo- 

 FiG. 20.— The pea weevil ( Mylabris pisorum): a, Beetle; b, politan ; peas, cowpeas, lentils, 

 larva; c, pupa. Enlarged. (Chittenden.) beans. (See text fig. 21.) ^Pachy- 



merus chinensis Linnaeus; now almost cosmopolitan; cowpeas, Phaseolus radiatus, Caja- 

 nus indicus, peas, lentils, beans, Dolichos, sorghum. (See text fig, 22.) *P. quadri- 

 maculatus Fabricius; now almost cosmopolitan; cowpeas, peas, beans. (See text 

 fig. 23.) 



Description: These weevils are small, somewhat flattened, rounded or oblong, with 

 head concealed beneath. The larvae breed in the seed of beans and peas and pupate 

 there. 



SoRAUER, P.: Handbuch der Pflanzenkrankheiten, 3d ed., 1913, vol. 3, pp. 535-537. 

 Chittenden, F. H.: U. S. Dept. Agric, Yearbook 1898, pp. 233-260. 



Spermophagus pectoralis Sharp. 



(Mexican bean weevil. Mylabridae; Coleopjtera.) 

 Host: Beans. 



Injury: To dried beans, which it destroys for successive generations like the common 

 bean weevil. 



Fis. 21.— Bean weevil (^ca«//io«c€/irf«6'o6^ertMs): a, Adult; 6,laiva; c,pupa. (Chittenden.) 



Description: A small black rounded lieetle with wliite marks on the elj-tra or wing- 

 covers. 



Distribution: 3,lexico, Guatemala, Nicaragua, Panama, Brazil, Texas. 

 Chittenden, F. H.: U. S., Dept. Agric, Yearbook 1898, pp. 233-260. 



