6 PAPEES ON CEREAL AXD FOEAGE IXSECTS. 



bearing each two recurved, fan-shaped, fleshy elevations or tubercles, increasing in 

 size with each successive segment (fig. 4, d); each elevation simple and bearing at 

 fringe of bristles directed to the rear. 



Last three segments bearing a number of bristles; cone-shaped projection of seventh 

 rather thickly studded and last segment densely covered with stout bristles, all 

 directed to the rear. 



THE ADULT. 



(Fig. 1.) 



The description by Le Conte is as follows: 



Hind tibia with two oblique ridges on the outer face; ridges parallel, the anterior 

 one extending almost across the outer face of the tibia; first joint of the hind tarsi with 

 three, second with two oblique ridges; elytra ferruginous, with the suture and margin 

 blackish; ferruginous, black limb of the elytra very narrow; abdomen, and sometimes 

 the hind coxa? and pectus, blackish. 9-11. 



LIFE HISTORY AND HABITS. 



THE EGG. 



Females have never been observed in the act of oviposition and 

 the period of incubation of the eggs has never been determined. The 

 latter would be rather difficult to obtain, as eggs that are deposited 

 in living plant tissue rarely hatch after they have been exposed to 

 the air. 



As stated above, the egg is usually deposited at and slightly below 

 the center of the first or second joint from the top, within the plant 

 tissues. 



The number of eggs that one individual is capable of depositing has 

 not been ascertained. Upon dissection females have never been 

 found to contain more than four fully developed eggs and several 

 immature ones, but they probably deposit a much greater number 

 than this. 



THE LARVA. 



Upon hatching, the young larva apparently destroys the tissue 

 immediately surrounding it, thus forming a minute cell or cavit} T . 

 It then eats its way into the center of the stem and starts downward, 

 tunneling the joints as it reaches them, and at harvest time the 

 earlier ones are below the fourth joint, where they will be out of 

 danger of the mower. By fall they have reached a point just above 

 the bulb. 



THE MOVEMENTS OF THE LARVA IN THE STEM. 



The manner in which the larva propels itself up and down the stem 

 is very interesting. It can ascend or descend the stem, forward or 

 backward, apparently with equal facility. ThemaxillaB, which extend 

 beyond the mandibles, the true legs, the dorsal tubercles or feet, and 

 the anal segment all play a part in its movements. In going forward 

 the abdomen is advanced by means of the dorsal tubercles, which act 



