460 MAINK AGRICULTURAL EXPERIMENT STATION. IQI2. 



ing the sides and joining the marginal depression; surface distinctly 

 alutaceous, sparsely punctate. Elytra wider at base than thorax, with 

 a prominent fold extending from umbone to near apex; surface finely, 

 rather sparsely and indistinctly punctate. Length 5-6 mm." (Blatch- 

 ley's Coleoptera of Indiana). 



We found this species very abundant during the past season 

 at Orono, Castine and Monmouth, and it has also been reported 

 from other localities. The larvae were very numerous on the 

 leaves of the alder (Alnus incana) during July about Orono, 

 skeletonizing the leaves. Sometimes half a dozen larvae were 

 found at work upon a single leaf. The insects pupate early 

 in August, adults appearing during the first weeks of Septem- 

 ber. The description of the larva given above, which was taken 

 from Packard's "Forest Insects," was evidently drawn up from 

 alcoholic specimens. In life the ground color is dark brown, 

 or sometimes almost black, with bluish black tubercles. 



WIRE WORMS IN CORN. 



Agriotes mancus. 

 Say, Jour. Phil. Ac. Nat. Sc. Ill, 171, 1823. 



Comstock and Slingerland. Bui. 33, Ag. Exp. Sta. Cornell 



Horn. Can. Ent. Vol. 4, p. 6, 1872. 



Forbes, i8th Report, 1894. 



"Larva. The newly hatched larvae must be very small, and, according 

 to European writers, they grow very slowly. The smallest larvae of 

 the wheat wireworms we have seen were about 4 mm. in length. All 

 variations in size occur at the same time up to a full grown larva which 

 measures from 16 mm. to 19 mm. The larvae are quite slender cylindri- 

 cal somewhat flattened on the venter, sparsely hairy, and of a waxy 

 yellow color, lighter at the sutures. The anal segment tapers gradually 

 to a subacute brown point, and bears on the dorsal aspect, near the 

 cephalic border, two large conspicuous, brown eye-like depressions 

 resembling the breathing pores. By these, the wheat wireworrri of any 

 size may be readily separated from any other species which we have 

 found infesting fields." (Comstock and Slingerland). Fig. 496. 



"Pupa. "The pupa resembles the imago in many of its characters, 

 being, however, about one-fourth longer, and in the abdominal region 

 more slender, the only differences of moment being the following: 



"Thorax at each angle with a stout bristle-like appendage more 

 slender towards the tip, about a sixteenth of an inch long. That at the 

 anterior angle is supported on a small papilla, the posterior being pro- 

 longed from the tip of the angle. Terminal abdominal segment above 

 subquadrate, emarginate at tip, angles acute and divergent, beneath 

 with deep sinuous groove on each side and a median shallower groove. 



