PAAIPHIUni: P.\MPIIII,A MANDAN. 



1571 



ninrkcd with blackish; tlic terminal hairs of the hotly reddish tawny. Upper orfjan "f 

 male appendages (37 : 2) with the centrum a little convex, slii;litiy compressed ; hooks 

 as long as centrum and together as broad as the base, regularly conical, straight, bent 

 strongly downward. Clasps about two and one- fourth times longer than broad, quite as 

 broad at apex as at base, the upper edge sinuous ; apical tooth small, compressed, lami- 

 nate, not pointed, central, interior, curved slightly inward. It differs from P. palaemon 

 of Kurope in that the apical tooth of clasp is bent inward a little less, in the greater 

 stoutness of the upper organ and of each of the parts, and in liaving tlie hooks much 

 more strongly bent downward, forming a considerable angle witli the lateral arms. 



Descriiied from 3 $ . 



Egg. In their widest parts the vertical wrinkles are about .06 mm. apart; surface 

 densely and uniformly punctate with very distinct, short oval punctures, whose longer 

 axis is vertical and about .003 mm. in length, arranged to a certain extent in short, 

 irregular, sinuous series, giving a faint vermiculate effect. Diameter of egg, .86 mm. ; 

 probable height, .48 ram. ; punctae about .008 mm. in diameter. Described partly from 

 a shell from which the caterpillar had escaped, partly from alcoholic specimens. Color, 

 according to Fletcher, greenish white. 



Caterpillar. First stage. Head piceous, the surface almost smooth, with a very 

 few scattered, short, tapering hairs. Mouth parts testaceous. Body uniform very 

 pale lemon, the dorsal thoracic shield piceous, the hairs pellucid and one-third as long 

 as the segments. Legs slightly infuscated. Prolegs color of the body. Spiracles 

 luteous. Length, 2.5 mm. ; breadth of head, .45 mm. ; of body, .35 mm. ; length of 

 bristles, .05 mm. Duration of this stage, according to Fletcher, five days. 



Second stage. "Head white and furrowed at apex. Thoracic shield black, much 

 smaller than in first stage. Body pale green with two naiTOw white lines on each 

 side, one subdorsal, the other supralateral. Spiracles yellowish. Whole body cov- 

 ered with a minute pubescence. Duration of this stage five days." Length, 3.5 mm. 

 (Fletcher.) 



Third stage. After second moult. "Head rather higher than broad, slightly broad- 

 est at the base, rounded at apex and bilobed by reason of a deep frontal groove; man- 

 dibles and two clouds on the cheeks, fuscous. Thoracic shield transparent and hardly 

 discernible. Body pale green and translucent, the dorsal vessel and the ramifications 

 of the tracheae showing plainly through the transparent skin. There are on each side, 

 a pale subdorsal band with irregular edges, a distinct, clear white, supralateral stripe 

 and a very faint suprastigmatal line. The subdorsal bands unite on the anterior 

 fold of the anal segment. The supralateral stripes at the end of the aual flap. Dura- 

 tion of stage seven days." Length, 6.5 mm. (Fletcher.) 



Fourth stage. Head pale green with a bluish tinge, obscured with very faint reddish 

 fuscous in a broad mottled stripe bordering the suture above the frontal triangle, and 

 in a similar belt passing down the middle of each hemisphere from the posterior point 

 of the former toward the ocelli, but fading out before reaching it; hairs white; ocelli 

 black; mouth parts pinkish at incisures and edges. Body very pale yellow, nearly uni- 

 form, the dorsal shield of first thoracic segment of the color of the head, with a median 

 dusky line through it; last abdominal segment finely edged with fuscous and a little 

 obscured above; an exceedingly faint, slender, greenish, dorsal stripe and a slightly 

 wider, but othenvise entirely similar, lateral stripe the whole length of the body. Legs 

 and prolegs concolorous, their claws and the spiracles lips pale testaceous. Papillae 

 concolorous, hairs pale brown. Length, 8 mm. ; breadth of he.ad, 1.25 mm. This stage 

 lasted, in Mr. Fletcher's specimen, fifteen days. 



