564 



NEW YORK STATE MUSEUM 



The larva when full grown is subcylinclrical in form, abdominal seg- 

 ments 2 to 7 subequal in width, the others gradually narrowing toward the 

 extremities. Ground color either olive or green, variegated with red, 

 forming with a dark green mediodorsal and two submedial stripes, seven 

 longitudinal stripes of alternate green and red. Sometimes red and 

 sometimes green rs the prevailing tint. Surface finely granulate, feebly 

 shining. Aside from color the general characters are much the same as 

 in D. xanthomelaena Dalm. . . Each segment is produced into a 

 transverse row of 10 papillae, each surmounted by a small black piliferous 

 wart, and terminating in a fine bristle. The first thoracic segment has an 

 additional row of papillae, and each spiracle is surrounded by a ring of black. 

 Head small, nearly circular, color shining black or very dark brown, triangu- 

 lar space in middle and clypeus brown. The posterior end of the body termi- 

 nates in a proleg which is concolorous with the surrounding portions of the 

 terminal segment. This is surrounded with two rows of black bristles, one 

 above and the other below. Legs considerably darker than the neighboring 

 portions ; sutures and some other portions marked with black, last joint 

 nearly black. Length 10 mm, width 3 mm. 



From the variability in color of the larva we would expect a similar 



variation in the pupa. As with the larva there are two prevalent ground 



tints; in one, rose is the prevailing color; in the other, somewhat greenish 



orange. Probably these colors represent the similar colors in the larva, 



rose corresponding to red and orange to olive and green. Aside from color 



the pupa of this species closely resembles that of D. x a n t h o m e 1 a e n a. 



The pink or rose-colored form of the pupa has pearly antennae, elytra, and 



legs, while the orange 'type has orange-yellow as the color of the same 



parts. Length, 6-6.5 mm, width, 3-3.2 mm. 



Bibliography 



1898 Chittenden, F. H. U. S. Dep't Agric. Div. Ent. Bui. 18 n. s. p. 83-84 



Spotted willow leaf beetle 



Melasoma lapponica Linn. 



A reddish, black-spotted beetle about % inch long, feeds during the summer on 

 willow leaves. 



This species is closely allied to the striped cottonwood beetle, Mela- 

 soma scripta Fabr., noticed on page 317, and it is stated that the 



