420 



pale specimens, but the tufted tibiae are always dependable if we 

 except the cripples which are so numerous in collections of this family. 

 The genitalia show no dilTercnce (see pi. LlII, fig. 5, Iwinodactyliis). 



There are four male and three female "types" in the Fernald 

 collection, all from New York. 



"Larva (full-grown), — Head pale oclireous. Body light green with long, 

 white, shiny, non-spiculate hairs from the tubercles, the longest being about 4 

 mm. in length. Except on the prothorax there is a distinct creamy dorsal line 

 broken in the centre of each segment by a small, round dot of the ground color; 

 traces of a pale subdorsal line are visible crossing tubercles I and II. espe- 

 cially shortly before pupation ; a somewhat broken pale lateral line midway 

 between tubercles I and III and a similar spiracular line, broken on the posterior 

 portion of each segment. Prothoracic plate indistinctly defined, the arrange- 

 ment of setae on this seginent being similar to that found in Iwnwductylus. 

 On the other thoracic segments tubercle I + II bears two long, central hairs 

 and three shorter ones, two anterior and one posterior. A single minute hair 

 is situated directly posterior to this group. Tubercle III shows two long cen- 

 tral setae, two minute posterior ones and three longer anterior ones ; tubercle 

 IV has four long central hairs and six or seven shorter ones arranged in a 

 crescent around the edge ; three short hairs are present on a level with the 

 abdominal spiracle. On the abdominal segments tubercle I bears one long, 

 shiny, smooth, central seta, three anterior shorter ones and one posterior one, 

 very minute; tubercle II is represented by a central, long hair, two shorter 

 posterior ones, pointing backward, and one very short anterior hair; tubercle 

 III bears the same number of setae as tubercle I ; tubercle IV -f V shows four 

 long central hairs and about seven shorter ones, arranged in a semicircle 

 around the ventral portion of the tubercle ; posterior to this group two short 

 hairs, pointing backward, probably represent tubercle Illb; tubercle VI is a 

 large one with about twelve hairs of which several are long ; several hairs at 

 the base of the prolegs represent tubercle VII. Length 14 mm. 



"Pupa (Fig. 3). — Very similar to that of homodactylus, green with the 

 same pale ochreous markings : the white hairs from the tubercles are, however, 

 shorter and more numerous, the abdominal segments contain a short white 

 centrodorsal hair, midway between tubercles I, and the wing cases, besides the 

 lateral fringe of fine hair, bear several additional rows of still shorter hair; 

 the sheaths of the two posterior pairs of legs are also of equal length. On 

 the first three abdominal segments tubercle I is preceded by a patch of small, 

 white secondary hair, and on these same segments it bears one long central 

 white hair, one anterior shorter hair and a single very short posterior one ; on 

 the remaining abdominal segments both the secondary hairs and the anterior 

 tubercular hair are absent. Tubercle II is distinctly laterad to I, is large and 

 bears a long, central, wliite hair, and five shorter hairs arranged around the 

 circumference; dorsad to tubercle II is a single short hair and laterad to same 

 tubercle, situated in the downward angle of the first pale lateral line, are two 

 small white hairs, one directed forward, the other backward; below these again 



