52O ENTOMOLOGICAL NEWS. [September, 



Mr. Ruscheweyh sent me the names " Olmo, Saibo and Da- 

 maiia." My bred larvae were not particular, taking anything 

 from rose to Carex. The cocoons from which this life-history 

 was worked out were sent me by Mr. G. Ruscheweyh, of 

 Buenos Aires, Argentina. Mr. Ruscheweyh patiently col- 

 lected and made sendings for three years, until finally success 

 w r as achieved. 



CRITICISM OF PREVIOUS DESCRIPTIONS. 



Cramer's figure is rather better than Sepp's ; both are recog- 

 nizable. I have remarked on the larva and given most of the 

 structural points of the last stage. Berg gives a lengthy ac- 

 count of the mature larva in which the coloration is fully 

 described. He states that it (bona-rcnsis) differs from that 

 figured by Cramer and Sepp (fusca) in having black dots on 

 the depressed spaces. This is true ; but I do not regard it as 

 of specific value. The Brazilian form differs from the Argen- 

 tine one in a few other minor characters. I have before me a 

 colored figure and an alcoholic larva from Sao Paulo, Brazil, 

 kindly sent by Dr. H. von Ihering, the larva collected there 

 011 Eugenia jaboticaba. This agrees with Sepp's figure, and 

 differs from the form bonarensis in lacking the black dots en- 

 tirely, in having larger, more nearly circular patches of detach- 

 able spines and in lacking all purple color on the anterior dorsum. 

 This area is entirely blue green like the subventral region. The 

 black line separating the two shades of green shows very strongly 

 in the alcoholic specimen. 



These differences are not greater, I think, than might be ex- 

 pected in a species ranging over so wide an extent of territory. 



DESCRIPTION OF THE SEVERAL STAGES IN DETAIL. 



Egg. Elliptical, fiat, finely reticulated with raised lines, 

 angularly and irregularly hexagonal; 2.2 ; 1.2 ; .1 mm. 

 Laid in rather large masses, overlapping like shingles, the 

 whole mass shining dark ocher yellow, rather opaque ; the 

 narrow margins of the eggs transparent, colorless. The eggs 

 greatly resemble those of Si bine stimulea which are also dark 

 yellow. Duration of the stage ten days. 



Stage I. Elongate, rounded rectangular sides parallel ; ends 

 rounded ; dorsal and lateral spaces equal, moderate, concave, 



