— 174— 



is iliree-biooded, instead of merely iwo-biooded as has been heretofore 

 supposed. Eggs and half grown larvae were found in abundance on 

 voung wheat August 4- 



Two species of Jl!/fc'/(/«'V«j' {^f. coiitmutiis. ixid cril/ulosus) were bred 

 to the imago, will) a third elaterid as yet undetermined, and figures anil 

 precise descriptions of the immature stages of these species have been 

 prepared. Larva: of all these species, o{ Agrio/es moficus, and of a Car- 

 diophurus. were reported as injurious to Indian corn; — the latter very pe- 

 culiar larva boring the roots in all directions, in sandy soil in Southern 

 Illinois. These larvae were apparently full grown June 24, but no pupa- 

 were found. Melanolus cribulosus pupates in July, and forms the imag<-> 

 by September, but in the Laboratory experiments did not emerge from 

 the ground until the following spring. 



The extention southward of observed injuries by the corn root worm 

 {Diabrolica longicomis) was next reported, fields having been seriously 

 injured in extreme Southern Illinois, where water had stood for three 

 weeks in the spring. That this, now possibly the worst of the corn in- 

 sects in Illinois, was rare in that region twenty years ago, seems implied 

 by a remark of Walsh in the Practical Entomologist (Vol. IL, p. 10,) to 

 the eflect that he had taken three specimens on flowers in Illinois manv 

 vears before. 



The common pale flea beetle {Sysiena blandd) usually feeding as an 

 imago on leaves oi Xanlhhivi sirianarium, was bred this year from slender 

 white larvae feeding on kernels of sprouting corn in the earth— specimens 

 collected May 17 pupating May 26— June 10 and emerging June 17. 



Epiccerus imbricatus feeds on leaves of pear in May (imagos appar- 

 ently emerging from the ground,) and lays its eggs in a single layer on 

 the leaves, afterwards concealing them by gumming the leaves together 

 by their opposed surfaces. 



The larva o^ Sphenophorus parindus was discovered to infest the roots 

 of meadow grasses (Timothy) hollowing out the bulbs from beneath. 

 These larvae (not heretofore identified) pupated after July 21, and had 

 formed the imago by September 24. A serious injury to hay, in South- 

 ern Illinois, was attributable to this insect — a large percentage of tlie 

 stalks, and even whole stools, being killed by the destruction of the 

 rnots. The imago sucks the sap from stems of wheat and corn. 



I'lmpoa albdpic/a, Forbes, was described in September. 1853, ^>' ■'^'■• 

 Wm. LeBaron in the 'Prairie Farmer'' of Chicago, under the name of 

 Tettigonia mult, but as the name, published in an agricultural newspaper, 

 was never afterwards used by entomologists, it should probably be ignor- 

 e<l. 'The species hif)ernates as an adult, lays its eggs in early summer 

 upon the apple, antl is apparently confined to that plant when young. 



