Vol. I] WILLIAMS— BUTTERFLIES AND HAWK-MOTHS 315 



side-patches to abdomen, gradually decreasing in diameter, a trace of a sixth 

 spot on seventh segment ; posterior ventral angles of tergites white ; abdo- 

 men below with traces of brown mesial spots. First segment of protarsus 

 about as long as segments 2 and 3 together, with a few short spines at 

 base, and three long ones, situated at base, in middle and at end respect- 

 ively. No pulvillus. Wings, upper side — Forewing: greyish white; a 

 white stigma; submarginal area shaded with brown; a brown post-discal 

 undulate line, an oblique black apical line, and rather indistinct brown 

 submarginal halfmoons; fringe not well preserved, apparently the white 

 spots smaller than the brown portions. Hindwing: grey, shaded with 

 brown, marginal area brown, a blackish, irregular, postdiscal band; 

 between it and base four indistinct bands or lines, the most proximal 

 broadest, situated between base and M2. Underside drab grey — Forewing: 

 disc slightly paler ; grey marginal spots ; a thin oblique brown apical line ; 

 scaling in front of this line grey; scattered grey scaling also along outer 

 margin. Hindwing: paler grey, especially a broad ill-defined discal band- 

 like space and abdominal area; distal marginal area brown, especially in 

 submarginal area ; a faint brown band between this border and cell. Length 

 of forewing : 5 , 45 mm. 



Hab. Chatham Island, Galapagos Islands, 14, III, '01 (Beck). AlHed to 

 petunice and sexta. The dorsum of the thorax is mutilated in the speci- 

 men." 



Further description in the appendix of the same volume 



reads : 



"Two 2 ? from S. E. Albemarle, collected by Mr. Beck on March 26th 

 and 27th, 1902, are rather better preserved than the specimen described and 

 figured. The forewing bears the antemedian lines of the allied species, and 

 three dentate discal ones, besides the postdiscal one. On the underside 

 there are two discal lines on the hindwing, and one or two on the fore- 

 wing." 



I secured ex larva, two $ S and three 5 2 , one 2 being 

 from Chatham Island, March, '06, and the remaining specimens 

 from Tagus Cove, Albemarle Island, April 29-30, 1906. These 

 specimens have the dorso-lateral patch on metanotum and 

 first abdominal segment almost black, and the former patch 

 is interspersed with pale yellow hairs in its inner corner. 



Larva — Smooth, moderately stout; head somewhat rugose, 

 rounded, about 5.5 mm. wide; segments of body with about 

 eight transverse deeply incised folds or wrinkles. Body, pale 

 green, with seven oblique blackish dashes running above into 

 the furrows, bordered below by a yellow dash. Thorax, nearly 

 plain concolorous green, feet, circled with black. A thin 

 dorsal line and transverse streaks in the folds form a rough 

 triangle on each segment from four to ten inclusive. Spiracles 

 large, dusky. There is much blackish at base of legs and on 

 segments four and five, and suggesting pen scratches. No 

 blackish about anal claspers ; horn slender curved and pointed, 



