Sept., I9I4-1 Dyar: New York Slug-Caterpillars. 227 



the subdorsal set?e black. Length, i.i mm. Duration of the stage, 

 one day. The larva does not feed. 



Stage II. — Elongate, the ends rounded, dorsum flattened, sides 

 oblique, subventral space retracted; subdorsal and lateral ridges 

 rather prominent, the horns subspherical, all alike, bearing many 

 stinging spines ; some soft hairs anteriorly and from the lateral warts ; 

 pale yellow, the tips of the spines only black. Later a brown infiltra- 

 tion between the horns, especially on the anterior end. This end is a 

 little higher, the body sloping posteriorly. Length .9 to 1.8 mm. 

 The larva often sits with the body curved like Adoncta. Duration of 

 the stage 6 days. 



Stage III. — Sides parallel, the ends rounded, flattened; dorsal and 

 lateral spaces rather narrow; horns rounded, subspherical, moderately 

 large, those of subdorsal row on joints 3 and 4 a little larger, also the 

 lateral horn on joint 4 slightly enlarg-ed; horns and subventer yellow, 

 the horns with dense short spines, their tips black, especially on the 

 subdorsals. Dorsum and lateral space infiltrated with dark red. The 

 body arches a little behind, flat before. Later the red infiltration 

 concentrates along the subdorsal ridge and on joints 3 and 4, but is 

 still diffuse. Length, 1.7 to 2.5 mm. Duration of the stage 6 days. 



Stage IV. — Moderately flattened, sitting curved often ; rather 

 long, the posterior end a little depressed, sides parallel; dorsal and 

 lateral spaces subequal, subventral space retracted. Horns sub- 

 spherical, the subdorsals of joint 3 a little pointed; spines numerous 

 but short and weak. Pale yellow ; a narrow dorsal red line and some 

 dull red in a band under the subdorsal ridge; joints 3 and 4 all 

 infiltrated with red dorsally. Dorsal depressed spaces (i) show- 

 plainly as pale dots defined by the red color. The red band under 

 the subdorsal ridge really occupies the lateral space nearly entirely 

 and defines the lateral depressed spaces (4), which are' pale and cut 

 into the red band. Later the dorsum becomes all gradually in- 

 filtrated with reddish. Length, 2.5 to 3.8 mm. Duration of the stage, 

 6 days. 



Stage V. — Rather strongly flattened, but thicker than Euclea, the 

 sides parallel except posteriorly, rounded anteriorly; subventral area 

 rather prominently rounded, bulging. Horns short, equal, large, the 

 spines contiguous, but moderate and not darkly colored; subdorsals of 

 joints 3 and 13 a little larger than the others. Dull yellow, the horns 



