78 THE CANADIAN ENTOMOLOGIST. 



The subdorsal horns short; green, the dorsal mark much elongated, 

 reaching the posterior end of the body and projected forward below 

 the anterior subdorsal horns, edged with yellow fusca. 



The larva oi fusca is evidently the most highly specialized. I have 

 received a number of alcoholic specimens from Mr. G. Ruscheweyh, of 

 Buenos Ayres, Argentina, under the name " Strehlota bonaerensis" but I 

 am unable to find any differences in either motli or larva from Sepp's 

 figures. The coloration is largely lost in my material through the effect 

 of the alcohol, but the outline separating the two shades of green can 

 easily be traced, and is exactly as shown by Sepp and StoU. 



Larva. — As compared with S. stimulea, Clem., the body is of the 

 same shape, or a little more flattened, but all the horns are short. Sub- 

 dorsal horns present on joints 3 to 5, 11 to 13, about .5 mm. long, alike, 

 bristly with stinging spines ; absent on joints 6 to 10. Lateral horns on 

 joints 3, 4, 6 to 12, even shorter than the subdorsals, sessile spined. A 

 subventral row of two distinct pale setae. 



Dorsum broad, flattened, sides oblique, subventral space small, con- 

 tracted. Segmental incisures deep, the depressed spaces (i) dorsal 

 intersegmental paired, two lateral (4) and (6) all show as distinct black 

 dots buried in the intersegmental folds \ addorsal spots (2) also present, 

 small. A large, elongate patch of detachable spines above the lateral 

 horn on joint 12, and a smaller one above the horn of joint 13. Caltrop 

 patches present on the bare tips of the lateral horns of joints 6 to 12 

 apparently, but nearly all the caltrops are lost in my specimens. The 

 caltrops and spines correspond with those of S. stimiilea (Journal N. Y. 

 Ent. Soc, Vol. IV., plate i, figs. 5 and 6). Skin not very finely spinu- 

 lose, the bases of the spinules enlarged, approximating granules, but still 

 bearing the sharp tips. Colour largely green, a line of dark spinules 

 joining the subdorsal horns of joint 5 runs forward on each side below 

 the subdorsal horn on joint 4, turns down behind the lateral horn of joint 

 3, and runs backward just above the row of lateral horns to joint 12, 

 turns up over the subdorsal horn of 12, and joins its fellow again just 



above the horn on joint 13 ; a detached ring also surrounds the subdorsal 

 horn of joint r r. This line evidently marks the joining of the dorsal 

 green with a different tint, which obtains over the horns, the stigmatal 

 region and the dorsum of joints 3 to 5. Thoracic feet and venter as 

 usual ; the spiracle on joint 5 moved up above the others. 



Habitat. — If my synonymy is correct, Sibine fusca ranges through- 

 put the eastern part of South America, from Guayana to Argentina, 



