10 Journal of Entomology and Zoology 



falling to tlie soil. The length of the larval stage varies from fifteen 

 to twenty-Hve days with an average of twenty days. By July 10 

 many pupae ( Fl. I, ¥\g. 4) were found in the soil. The writer 

 neglected to ascertain the exact length of the pupal stage, but from 

 the meager observations made up to this time ventures the opinion 

 that it is about eighteen days. By the first of August many adults 

 could be found. They are a beautiful metallic color when just 

 emerged. The writer bred from the adults a species of Diptera a 

 Tdchinid but has not been able to ascertain the species. Subsequent 

 observation revealed no eggs, so undoubtedly the species is single 

 brooded. The life-cycle is calculated to last about fifty-five days 

 from eggs to adults, but this is greatly influenced by the weather 

 conditions. The length of the adult stage is about ten months, 

 depending, of course, upon the time the warm days approach in 

 the spring and upon the cold stretches which intervene, conditions 

 which influence emergence from their hibernatmg quarters. 



DESCRIPTION OF THE VARIOUS STAGES 



The Eggs (PI. I, Fig. 3) arc of an orange color, oblong o\al or 

 bean-shaped. The egg has a tlelicate co\ering by which it is 

 attached to the leaf. Nearly every egg has a sort of spine-shape 

 structure attached, although it is not exactly a spine but a part of 

 the egg covering, which, when it has dried, gives it a black streaked 

 appearance at that point. The egg measures 1 mm. in length by 

 .25 mm. in width. 



The Larvae ( PI. I, V\g. 7) when full grown have the body wider 

 at the anterior end, tapering gradually to the anal segment and 

 covered with many hairs. They are covered with an oily substance 

 in which they often collect their excrement as they feed and travel. 

 The entire larva is black and the segments of the body possess 

 numerous tubercles bearing setae. I^ach segir.cnt of the abdomen 

 has a group of tubercles on a side above the spiracles. When full 

 grown the larvae measure from 6 to 8 mm. in length. 



The Pupa (PI. I, Fig. 4) is yellow, 4 to 6 mm. in length, with 

 the wing pads and legs of a paler yellow to nearly white. Two 

 setae are located on the vertex and two on the occupit of head. The 



