250 



FlliST AXXUAL REPORT OF THE STATE ENTOMOLOGIST. 



Still later {Bepf. Commis. Agricul, for the years 1881 and 1882), 

 Professor Riley has published a detailed account of this insect — of its 

 discovery and distribution in this country, its life-history, its natural 

 enemies, description of its several stages, etc., to which the reader is 

 referred for many interesting particulars. The excellent illustration 

 accompanying the same (from which Fig. 74 was taken) is here pre- 

 sented (Fig. 75), by permission of the Department of Agriculture, to 



Fig. 75. — The punctured clover-leaf weevil, Phytonomus ponctatus; a, the egg, en- 

 larged, with natural size beside it; h, b, b, h, the larva at different stages of growth, feed- 

 ing; c. the young larva; d, its head from beneath, and e, its jaw, enlarged ; /", the cocoon 

 in natural size, and meshes of the same enlarged at y; h, the pupa; i, the beetle in natural 

 size; /, side view of the beetle, and ic, dorsal view of the same, enlarged from accompany- 

 ing hair-lines ; I and m, font and antenna of the beetle, enlarged. 



illustrate the earlier stages of the insect, and the character of its dep- 

 redations. Its life-history, as presented, may be condensed as fol- 

 lows : — 



Life-history of the Species. 



The eggs are deposited during the latter part of summer, by the 

 beetles which may be seen in July and August. The larvae from them 

 appear in September, and changing to pupas in October, emerge as 

 beetles in November. Some of them lay their eggs, from which the 

 larva? hatch and hibernate while quite small, within the old clover 

 stems. Others of the beetles hibernate without oviposition, and lay 



