DUFFEY TRANSFORMATIONS OF A CARABID ETC, 54I 



was the larva of Chrysopa, before mentioned as feeding on the 

 red spider, and which I also observed destroying a pupa of our 

 little Scymmis. 



The beetle when first excluded is nearly white, but soon as- 

 sumes the dark color characteristic of it. The original descrip- 

 tion of the ima:jo is as follows: — 



Scymnns pn?icticm.* — On account of its size and form it resembles the 

 preceding (5. fiaiius). but the coarsely punctured thorax distinguishes it- 

 Rounded oval, convex, shining black, covered with fine and sparse pu- 

 bescence. Head obsoletely punctulate, antennie yellow. Thorax finely 

 and sparsely punctured at the middle, coarsely and densely at sides, base 

 margined, obtuse in the middle, subsinuate each side. Elytra finely and 

 sparsely punctured. Body beneath coarsely punctured, abdominal plates 

 smooth, punctured at base, considerably shorter than the segment, not 

 extending laterally to the parapleurae. Feet testaceous-yellow, four pos 

 terior thighs piceous. .05 in. long. 



Although the transformations of other species have been de- 

 scribed, I append descriptions of the larva and pupa of 6". pii/ic- 

 t2im as they were observed at the Garden, 



Full-groru?i larva 2,5 mm. long, salmon-colored to dark sooty brown, 

 with 13 segments exclusive of head. Thoracic segments with two dorsal 

 rows of low, broad elevations, pilose, with many black dots and blotches. 

 Abdomen with four longitudinal rows of tubercles, brown-pilose from 

 numerous black dots; the anal segment paler, without tubercles, and used 

 as a proleg. — Described from six living specimens. 



Pupa 2 mm. long, showing the members of the beetle, tapering from 

 base of thorax so as to be triangular in general outline; from salmon- 

 colored becoming dark brown, the wings and thorax darkest; sparingly 

 covered with spreading hairs which usually bear near their ends small 

 globules of what appears to be a liquid. Anal segment covered by the 

 cast larval skin, b^' which the pupa is suspended. — Described from six 

 living specimens. 



In closing, I wish to acknowledge the kindness of the Ento- 

 mologists of the Division of Entomology at Washington, and of 

 Prof. A.J. Cook and Prof. J. H. Comstock, who have aided me 

 l)y the identification of species and looking up literature to which 

 I did not have access. I am also indebted to Prof. Wm. Trelease 

 for many hints. 



The drawings were made under my direction by Mrs. Maggie 

 H. Duftey. 



• LeConte, Proc. Aead. Phil. vol. vi. p. 141. 



