SECRETARY'S REPORT. 



189 



Fig. 14. 



and black except on the swelliiij^, upper surface, where they are 

 of a reddish purple, with longitudinal impressed lines. It 

 measures about .80 in length and .35 in breadth. 



Cdrabus serrdtus of Say, or the serrated 

 ground beetle, (figure 14,) is of a polished 

 black color, with violet margins, and three lon- 

 gitudinal rows of embossed oval tubercles on 

 each elytron. The head and jaws are not so 

 much elongated as in the preceding, but the 

 eyes are equally prominent ; the elytra are 

 turned up at their margins, the inner side of 

 which are of a violet blue. It is a very common 

 insect in Massachusetts, and measures .75 in 

 length by .35 in breadth. 



The greatest enemy of the canker-worm, in some parts of the 

 State, is a beautiful, green, shining beetle, called by Fabricius, 

 Calosdnia scrutdtor, or the searcher ; it has received in 

 some places the name of " caterpillar-hunter." Calosdma from 

 the Greek signifies handsome body. Figure 15, (^Hurr.*^ 

 represents this species ; the head 

 and thorax are dark blue, almost 

 black ; the former with two longi- 

 tudinal streaks between the eyes, 

 of a brassy green color, and the 

 latter broadly margined with the 

 same ; the elytra are bright green, 

 finely lined and punctured, and 

 with a broad, coppery margin ; 

 beneath, bright green, varied .vit 

 coppery ; feet blackish, except th e 

 femora, which are of a steel-blue 

 color, inclining to purple. It 

 measures in length from 1, to 1.15, and about .55 in breadth. 



Fig. 15 



* This cut, and others which follow, marked " Ifarr," were kindly loaned hy 

 the editor of the new illustrated edition of Dr. T. W. Harris's •' Treatise on some 

 of the Insects Injurious to Vegetation," published by Crosby & Nichols, 117 

 Washington Street, Boston. This work is of great value to the farmer, being the 

 only one yet published in this country which treats of our native noxious species, 

 iu such a lucid style as to bring the subject witliin the coraprelieusion of every one. 



