PIERINAE: EURKMA LISA. 



1089 



three times as long as liigli. Clasps of about eiiiiul lenj^th and brcailtli, the upper 

 margin bearing near the slightly inturneil apical tooth a similar but sharper dentation ; 

 not far removed from it and near the middle of tlie bortler a slight rounded expan- 

 sion from wliich springs a slightly curved, delicate, aculiform spine directed inward; 

 lower border with an inturned pointed spine just before the extremity and similar to 

 that before the tip of the upper l)order, aud, l)etweeu the two and forming a quadri- 

 lateral with them aud the apical tooth, anotlier similar spine. 



Described from 20 3 , 17 ? . 



Dimorphic forms. Ei'Ukma lisa alba (Terias lisaab. a. alba Strcck., Cat. Araer. 

 Macrolep., 8J). Tlie above description applies to the normal form, T. 1. lisa. Aftect- 

 ing the female sex only, nowhere exclusively, and perhaps confined to the later 

 broods of the season and to southern localities is the white form first noted by Boll. 

 Above it is very pale, one before me having the yellow wholly replaced by white, 

 with scarcely a trace of brighter color; beneath, however, there is considerable 

 -yellow, especially near the base and apex of the fore wings, but here also paler than 

 in the other form. Several specimens were taken by mc on the coast of South Caro- 

 lina in September. 



Egg (65:32). Distinctly tapering above only in the middle third, below in the 

 middle fourth; vertical ribs from thirty to forty in numljer in the middle, decreasing 

 to less than half as many at tip ; interspaces very minutely and densely punctulate, 

 the vertical ribs about .02."> mm. apart. Color pale green or straw yellow. Height, 

 1.1 mm. ; breadth, .34 mm. : breadth at summit, .08 mm. 



Caterpillar. First stage. Head uniform, very pale yellowish green, the hairs 

 black ; ocelli brown ; mouth parts tinged with pink. Body pale green, the first tho- 

 racic segment and the last three or four abdominal segments, especially the former, 

 very pale green, as are also the under surface, legs and prolegs, which have a tinge of 

 yellowish; a darker green, slender dorsal thread; papillae coucolorous, hairs black, 

 very slightly curved, as long as the segments, excepting on the first two tlioracic and 

 last two abdominal segments, where they are half as long again aud more arching, 

 those of the first thoracic segment longest and most arching. Spiracles concolorous. 

 Length at birth, 2 mm. ; width of head, .2 mm. 



Second stage. Head uniform green, with sparsely scattered black bristles. Body 

 grass green ; dark green dorsal and infralateral stripes and a faint, greenish yellow 

 stiginatal stripe ; the whole upper surface of body above the lateral line and exclud- 

 ing the dark dorsal line witli a slight hoary look, but not so light green as the pale 

 green papillae with which the body is covered; these are rather broader than high, 

 well rounded, are arranged in a transverse row on each section, and bear equal 

 bristles, some black, some greeu, all globule-tipped and of varying but definite 

 lengths. Legs and prolegs green, spiracles concolorous. Length, 4.2 mm. ; breadth 

 of head, .8 mm. 



Last stage {16: i). Head (79 : 55) uniformly grass-green ; the papillae ivory-white 

 hairs black or blackish brown : ocelli ringecf basally with fuscous ; mouth parts green ; 

 the mandibles reddish fuscous at the edge. Body of the same green as the head ; a deli- 

 cate dark green dorsal line marking the position of the dorsal vessel; the sides deep- 

 ening in color slowly below toward the stiginatal line, which is a pallid, almost white 

 stripe of moderate breadth ; it is rendered more distinct by the depth of the green directly 

 beneath it, which again fades out gradually to the pale green of the under surface; 

 the papillae ivory-white, on the sides of the body more or less annulate at the base 

 with blackish fuscous; all the hairs, both long and short, blackish brown, excepting 



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