THE CANADIAN ENTOMOLOGIST. 271 



ON THE EARLY STAGES OF TWO MOTHS. 



BY WM. n.XRNES AND J. MCDUNNOUGH, DECATUR, ILL. 



Apantesis michabo Grt. 



Eggs of this species were received early in the spring from 

 Southern Pines, N. C. They were laid in small patches of from 

 30-40 ova in one patch and were similar to those of A . arge. The 

 larva? fed up quickly on lettuce and dandelion. It was noticeable 

 that the larvae producing the male moths underwent one less moult 

 than those producing the female; on account of this extra moult 

 the female larva' were considerably smaller than the male ones in 

 the fourth and fifth stages, but when full grown were much larger. 



Stage I. — Head black. Body pale greyish with large black 

 tubercles similar in arrangement to those of our sketch (Can. Ent., 

 44, p. 133, 1912). Prothoracic plate brownish, rounded posteriorly, 

 with four long black equidistant seta? on anterior margin and two 

 similar seta^ on posterior margin situated one on each side of the 

 centro-dorsal line; laterad to each of these is a minute white seta. 

 Posterior to the outer corner of the prothoracic plate is a minute 

 white seta situated on. a small chitinous patch; laterad to this 

 plate, on the anterior margin of the segment, is a larger chitinous 

 patch with two black setcC, below which again are two small white 

 seta? on a small chitinous area. On the meso- and metathorax 

 the two setae of tubercles I. and the single seta of HI are black, 

 all the others white and shorter than the black ones; tubercle IV 

 situated laterad and posterior to HI, small; on the first eight 

 abdominal segments the seta of tubercle H and the upper one of 

 HI are black, the setae of the other tubercles and the lower one of 

 III being white; tubercle I minute. On the Dth abdominal seg- 

 ment two large dorsal tubercles contain each 4 seta? and the anal 

 plate is shield-shaped with four short setcie on each side of the 

 centro-dorsal line. 



Stage II. — Head black with the sutures" of the clypeus strongly 

 marked in white. Body black-brown dorsally, shading into light 

 brown laterally; a broad dorsal whitish stripe, a narrower sub- 

 dorsal one above tubercle III and a slightly waved subspiracular 

 one between tubercles IV and V. The tubercles are black and 



August, 1915 



