HESPERIDI: THORYBES PYLADES. 1439 



ing the base of adhesiou. .17 iiiiii. apart, the space between gently hollowed and 

 broken into narrow, transverse cells, by numerous cross lines, not clearly defined and 

 but slightly raised, averaaing .021 mm. in distance apart. Micropyle rosette (69 : 5) 

 .08."> mm. in diameter, central circle .0068 mm. in diameter, ov.al cells bordering it .017 

 mm. long, by .013 mm. broad. Color exceedingly p.ale green, almost white. Height, 

 jV.) mm. ; width, .80 mm. 



Caterpillar. First stage (73; 5). Head (80:25) shining piceous, mouth p.arts 

 black. First thoracic segment dark castaneous, with a black, dorsal shield reaching 

 close to the spiracles on either side. Rest of body whitish, becoming greenish after 

 feeding. Prolegs and legs pale, the claws of latter dn.sky, and the extremity of last 

 joint, as well as the whole of first pair of legs iufuscated. Hairs (86 : 45) abont half 

 as long as the segments (on hinder segments longer), dusky, those of the supralateral 

 row inclined a little inward, those of the infr.alateral row a little backward. Length, 

 2.25 mm. ; breadth, A ram. ; of head, .(!5 mm. 



The above describes the caterpillar just after hatching; the following description 

 was taken at the maturity of this stage. 



Head piceous, almost smooth, with a few scattered fine hairs. First thoracic segment 

 reddish brown, with piceous dorsal shield. Rest of body dark green, with a faint 

 lateral, yellowish green line, made up of a little more regularity in the otherwise some- 

 what promiscuous but regularly transverse series of crowded, yellowish green dots, 

 not elevated above the surface, and each generally containing a central dusky dot, but 

 not giving rise to any hair. [These are the minute warts of next stage. At the same 

 time the long hairs of first stage still remain just as before.] Length, 4.25 mm. 



Second staye. Head (80:2G) black, delicately rugose, covered profusely with fine, 

 short, golden hairs; first thoracic segment constricted, corneous, reddish black, naked, 

 the shield piceous ; rest of body rather dark green, with a fine, lateral, yellowish green 

 line, and a similar but Inconspicuous stigmjital line. Body studded with yellowish 

 white and greenish white, minute warts, each giving rise to an exceedingly fine and 

 very short, colorless, clubbed hair; the warts on under surface are wholly white. Legs 

 (excepting first pair, which are wholly black), and prolegs wholly green; spiracles a 

 minute testaceous ring ; skin rather coarsely punctate. Length, 7 mm. ; breadth of head, 

 1.2 mm. ; of middle of body at rest, 1.4 mm. 



Third stage. Head (80 : 27) black, delicately scabrous, covered with white pile, so 

 as to give it a slightly hoary look. Body much slendererthroughout than the head ; 

 rather dull green, the terminal segment with a dull pni'plish tinge, and edged with pal- 

 lid; whole body studded with minute, pale yellowish warts, those on thoracic seg- 

 ments, on the lower part of the sides and on the ventral surface almost pallid, each 

 giving rise to an exceedingly delicate, short, white or pellucid hair; a faint, very 

 slender, bluish dorsal line, and a slender, yellow lateral line ; shield of first thoracic 

 segment piceous, the rest of segment dull red. Len.gth, 10 mm. ; breadth of head, 

 2 mm. ; of body, 1.5 mm. 



Fourth stage. Head (80:28) brownish piceous, densely, deeply and yet delicately 

 scabrous, profusely covered with a delicate gray pile; mandibles dark, shining cas- 

 taneous; antennae piceous, bristle gray; first thoi-acic segment much contracted, 

 dark vinous, with piceous smooth collar. Body rich clover green, the many incis- 

 ures, a narrow lateral line, and the multitudinous wartlets yellow, the latter becoming 

 pale on the thoracic segments and lower part of the sides, and from each of them a 

 fine, short, clubbed, pellucid hair; dotted also somewhat abundantly, and on the last 

 four segments abundantly with exceedingly minute black dots, collected more or less 

 into irregular congeries ; substigmatal fold pallid ; last segment somewhat infuscated. 

 Spiracles castaneous; front pair of legs piceous, the others and prolegs green, the 

 former with infuscated claws. Length of body, 18 mm.; breadth, 3.5 mm.; breadth 

 of head, 3 mm. 



Last stage. (76 : 25, 29). Head (80 : 29") generally pitchy black, sometimes varying to 

 dark amber, densely covered with short whitish or hoary hairs which give it a fuzzy 

 appearance, mounted on minute papillae, arranged to some extent in longitudinal rows ; 



