BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 153 



1301. EILEY, C. V. Continued. 



work in the fruit can be distinguished from that of other insects, 

 33 It is very injurious in Southern Illinois and parts of Mis- 

 souri, 33 It is less injurious to apples than the plum Curculio, 

 33 Injury done by it to pears, 33 The rot in apples principally 

 produced by it and by the plum Curculio, 34 Season of its ap- 

 pearance, 34 Remedies and preventive measures, 34 Descrip- 

 tion of larva and pupa, 35. 

 The quince Curcullo, Conotrachelus cratcegi 35 



Its food-plants, 35 It is very injurious to the quince in the East, 

 36 Dr. Trimble's account of the damage done by it, 36 How 

 the beetle differs from the two preceding Curculios, 36 Its trans- 

 formations and habits, 37 Its puncture on the fruit, 37 It hiber- 

 nates in the larva state, 37 Its larva mistaken by Dr. Fitch for 

 that of the plum Curculio, 38 The imago state lasts only two 

 months, 38 It does not attack the apple, 38 Remedies, 38 De- 

 scription of the larva and pupa, 39. 

 The pluin-gouger, Coccotorus scutellaris 39 



How it differs from the preceding species, 39 Injury caused by it, 



39 Food-plants, 40 It is often mistaken for the plum Curculio, 



40 Season of its appearance, 40 Holes bored by it in the fruit, 



41 The larva lives within the kernel of the fruit, 41 Remedies, 41 



The strawberry crown-borer, Tyloderma fragarias 42 



Distribution of the insect, 42 Injury done by it, 42 Habits and 

 characters of the larva, 43 Habits of the beetle, 43 Remedies, 

 43 Parasite, 44 How the larva differs from that of the grape- 

 vine Colaspis, 44 Description of the imago and larva, 44. 

 The pea-weevil, Brucltus pisi 44 



Insect enemies of the garden-pea, 44 Characters of the Bruchidce, 

 45 Habits of other species of Bruchidw, 45 Frequent occurrence 

 of its larva in green peas, 45 Characteristics of the beetle, 46 

 It is in all probability an indigenous North American insect, 46 

 The beetle does not sting the peas, 46 The eggs are fastened by 

 the female beetle on the outside of the pod, 47 The larva and 

 its habits, 47 Its transformations, 47 Remedies and prevent- 

 ives, 48 Examination of peas intended for seed, 48 Concerted 

 action necessary to exterminate the insect, 48 Mr. Sannders's ac- 

 count of the occurrence of the pea-weevil in Canada, 49 Other 

 preventive measures, 49 Birds destroying the insect, 50. 

 The grain Bruchus, Bruchus granarius 50 



Its introduction from Europe, 50 How it differs from the pea- 

 weevil, 50 Curtis's account of its habits in Europe, 51. 

 The American bean-weevil, Bruchus fabce 52 



Food-plants, 52 Its geographical distribution, 52 Accounts of 

 damage done by it in New York and Pennsylvania, 52 It has 

 only lately become injurious, 53 Habits of the larva and beetle, 

 54 The proper nomenclature of the species, 54 Description of 

 the imago, 55 Its differences from allied species, 55 Note on 

 descriptions based upon individual variations, 56. 

 The New York weevil, Ithycerus noreboracensi* 57 



Damage caused by it to fruit trees, 57 Former descriptions of the 

 insect, 57 Its breeding habits, 57 The pear blight not caused 

 by the beetle, 58. 

 The imbricated snout-beetle, Epiccerus imbricaius 58 



Injury done by it to vegetation, 58 Its natural history still un- 

 known, 58 General appearance of the beetle, 58. 



