TIIK (iYPSY MOTH- -APPENDIX. 55 



think under natural conditions flic period spent in this stage 

 would be somewhat shorter. 



I have lieen unable to find in the literature at my disposal 

 any description of the imago of this species, and it seems 

 doubtful if such a description has l>een heretofore published. 

 At my ret|iiest Prof. P. R. Uhler has kindly prepared, for 

 publication iu this connection, the following characteriza- 

 tion of the species : 



tis 2~>1acidus Uliler. -- (Plate 1, Fig. G.) "Of a narrower 

 and more oval form than P. serifi'<<ntri*, with a head somewhat 

 tapering anteriorly, and rounded at tip instead of being truncated, 

 and with the humeral angles rounded off and very moderately 

 prominent. Color pale testaceous, stained with pale browu and 

 punctate with darker brown. Head much longer than wide, de- 

 pressed, remotely punctate, the edge retlexed, brown; each side 

 of tylus is a slender browu line which is triangularly expanded 

 on the base of the vertex ; occipital margin dark browu in the 

 middle, pale and narrowly callous each side ; a pale callous line 

 extends back from each ocellus ; throat whitish testaceous ; 

 cheeks with a slender black line before each eye ; eyes browu, 

 bordered with testaceous behind; antennas pale browu, paler at 

 base and on the two last joints ; the basal joint testaceous, very 

 short, the second longest, third scarcely more than half the length 

 of the second, fourth about three-fourths as long as the second, 

 fifth a little shorter than the fourth ; rostrum stout, pale testa- 

 ceous, reaching upon the posterior coxa?, the apical joint narrow, 

 about as long as the preceding one, brown. Pronotum with the 

 sides >traighter than usual, the lateral margin narrowly callous, 

 pale ivory yellow, and with a few indented points and small teeth 

 before the middle ; the submargin with a brown line, surface with 

 wavy, transverse pale lines between the pale browu marbling, 

 UK ire generally brown behind the middle; posthuineral margins 

 slightly shmated ; anterior margin callous, having a small group 

 of coarse punctures behind each eye ; punctures sunken, brown, 

 mostly not close together in the transverse series; posterior mar- 

 gin truncate. Scutellum long, bluntly rounded and margined 

 with white at tip, punctures in short transverse series, grouped iu 

 about three spots at base. Corium slenderly bordered with pale 

 testaceous, more broadly covered with brown at base and. on tin- 

 disk. the veins posteriorly yellow ; membrane pale bronze. LI 

 minutely speckled with red. the tibia* and tar-i a little stained with 

 brown. Under side finely punctate, the sternum with two series 



