Dec. iSgg.] DVAR! LiFE-HlSTORIES OF N. Y. SlUG CATERPILLARS. 237 



Subdorsal horns of joint 13 conjoined to form a pointed tail, often pro- 

 duced ; largest subdorsal horns erectile. 

 Body humped in front ; dead-leaf brown with a red patch pos- 

 teriorly Euclea chloris. 



With detachable spines between the terminal horns in small pointed clusters. 



Slightly flattened, green or purplish, variously marked with shades of 



red or yellow. The larvse tend to hide by day...EucIea delphinii. 



Horn of joint 8 not longer than the adjoining ones in stage I, those of joints 6 to 



10 reduced, often obsolete; terminal detachable spinules fully developed, 



present in large flat patches. 



Horns of joints 5 and II long ; purple with a large green mark, wliite edged, 



squarely truncate belbre and with a central saddle-like spot. (Plate VI, 



fig. 3.) Sibine stimulea.* 



Section j. (Tropic smooth Eticleids. )— Smooth larvae ; dorsal 

 space broader than the lateral one, subventral space little reduced. 

 Tubercles not produced, single setae by degeneration after stage I, ru- 

 dimentary ; spiracles in line. No primitive first stage, the tubercles 

 represented by small two-haired warts in stage I ; no tubercles ab- 

 sent. 



Type 4. — Lateral space absent, the two ridges conjoined, the sides formed by the 

 large subventral area. 

 Depressed spaces large, plate-like, the skin granules scaled. 

 Green, more or less spotted with brown and yellow. 



Prolimacodes scapha. 



Section 4. (Paleearctic smooth Eucleids). — Smooth larvae; dor- 

 sal and lateral spaces subequal, subventral space reduced ; tubercles 

 not produced ; sette single by degeneration, rudimentary ; spiracles in 

 line. A primitive first stage with tubercles I and II united more or 

 less perfectly. 



T'yP^ 5- — Depressed spaces small, not sharp; spines i and ii of unequal length in 

 stage I, one reduced to a small knob on the other ; joint 13 rounded quad- 

 rate ; skin granules produced into secondary spines in the early stages ; no 

 dorsal red marks. 

 Yellowish green, no bordering dark shade to the yellow subdorsal line. Head 

 green in stage I ; skin granular shagreened beside the usual spinose granules. 



Lithacodes fasciola. 

 Whitish green at maturity, a dark line bordering the subdorsal line ; head with 

 a black patch behind in stage I ; skin smooth except for the ordinary 

 granules. 

 No transverse band on joint 3; subdorsal and subventral lines free. 



Cochlidion biguttata. 

 A transverse yellow band on joint 3 in front, joining the subventral lines. 



Whitish green, subdorsal lines edged within by a blackish green 



* See Can. Ent., XXTX, 77, for a table of other larvae of this group. 



