75 



AVhen the caterpillars have grown to half their size, if disturbed, they 

 make a snapping sound with their mandibles resembling the click of sparks 

 from an electrical machine. Feeds on Nicotiana tabacum. Collected in Con- 

 necticut. (Described in 1859.) {S. H. Scudder.) 



Macrosila \_Sijhinx] quinqucmacvlata. E.xceeclingly brief 

 descr., in Harr. Ins. Iiij. Veo-., 320, and a figure, fig. 142. 

 Brief descr., in Morr., 190-191. Good descr. of several vari- 

 eties, by Lintner, in Pr. E. S. Ph., iii (1864), 648-649. 

 Descr., by E. Doublcday, in Harr. Ent. Corr., 126, from an 

 unpublislied (?) figure by Abbot. Copy of Harris's figure, 

 by Riley, i (1869), 94, fig. 38 A. Good descr. of two varie- 

 ties, by T. G. Gentry, in Can. Ent., vi (1874), 88-89. 



The mature larva closely resembles that of M. Carolina., differing from it 

 in the following peculiarities. The oblique stripes are edged in front by a 

 black band made up of somewhat distant delicate lines transverse to the 

 direction of the band, which continue upon the succeeding segments as a 

 border to the dusky extension of the oblique white stripes; the oblique 

 white stripes have a slight bluish tinge above, which partially covers the 

 adjacent black lines; the broken stigmatal baud of il/. Carolina is replaced 

 by scattered transverse lines; and, in addition, a narrow stripe, made up of 

 broken and bent black lines, runs horizontally along the edge of the fold 

 just above the prolegs; the last segment is scarcely edged with white, and 

 there are no white dots upon the body. The back of the head is edged 

 with black, the spiracles are of a lighter color, and the horn is smaller, and 

 of a reddish color tipped with black. Feeds on Solanum tuherosuin. (De- 

 scribed in 1859.) {S. H. Scudder.) 



Macrosila [^Sphhix] cingulata. Figure of Sphinx convolvuli, 

 in Abb., pi. 32. Descr. of Abbot's figure, in Harr. Sphinx, 

 294 ; another, in Morr., 189. Good descr. of jS. eonvolvuU., by 

 Harris, in Ent. Corr., 282. Excellent descr. of six varieties, 

 criticizing Abbot's figure, by Lintner, in Pr. E. S. Ph., iii 

 (1864), 650-651. . 



Sphi^ix drupiferarum. Figure, in Abb., pi. 36. Descr. of 

 Abbot's figure, in Harr. Sjjhinx, 294. Brief descr., in Morr., 

 197 ; another, by Lintner, in Pr. E. S. Ph., iii (1864), 658. 

 Good descr. of young and of mature larva, by Wm. Saunders, 

 published by E. B. Reed, in Can. Ent., iii (1871), 5-6, and a 

 figure of mature larva, fifr. 1. 



Sphiyix kalmiae. Figure, in Abb., pi. 37. Descr. of Abbot's 

 figure, in Harr. Sphinx, 295. Good descr., in Morr., 196. 



