42 THE CANADIAN ENTOMOLOGIST. 



margi7iideiis and cerussata, make it a very striking species, and though 

 much smaller, would court notice at any collector's hands. The quest for 

 the larva of Xanthcecia buffaloensis, known only in the single example 

 taken many years ago, which stands as the British Museum type of 

 Papaipema speciosissima and furcata, taken in recent years in a few 

 random imagoes at light, had served to keep an interest in larva-hunting, 

 which now meets with this unexpected reward. Thus, in recognition of 

 the persistent and skillful work done by Mr. Moeser in this group, it is 

 fitting to dedicate this fine pecies to him, 



Papaipema moeseri, n. sp. 



Antenna slightly ciliate, front smooth, habitus typical. Vestiture of 



head and thorax rich purple, collar edged with cream, crests and tufts 



fully normal, abdomen dull purple-gray. Primaries short and stout, yet 



acute at apex; ground colour rich violet-brown, the medial area red,. 



irrorated with yellow toward the inner margin, the ante-, postmedial and 



terminal areas purple, with a satin sheen ; within the basal line the usual 



contrasting spots are yellow and not large, an elongate dot outside this 



line at its middle ; antemedial line indistinct, very sinuous, touches lower 



edge of claviform and bends outwardly before reaching the inner margin^ 



claviform two obliquely placed, rounded, white spots, the lower twice or 



three times the size of the upper ; the orbicular, whose axis is in the same 



oblique Ime, is an irregularly rounded white spot, sometimes centrally 



marked with a brown dot ; reniform large, the usual cluster oC broken 



white spots around a yellow lunulate line, except the spot at the middle 



outer side, which is yellow ; five yellowish dots on costa ; postmedial line, 



two fine indistinct lines, beginning on costa above and very near the 



reniform, past which it sweeps in a full curve, nearly touching again the 



lower end, and thence nearly straight and oblique to the inner margin \ 



the deep brown median shade is noticeable in its lower course across the 



median field ; terminal line defined by an illumination of glistening orange 



scales, inwardly dentate between the veins and brightest near the apex ; 



it serves to define the terminal from the postmedial areas, which otherwise 



would be a solid blending of rich purple gloss. Secondaries violet-gray, 



with a fine, indistinct medial line and terminal band. Beneath the 



violet-gray is darkened with smoky powderings. The male genitalia, 



though typical, shows some individuality; the lower lobe of the trigonate 



end of the harpes, as occurs with the //rtr/'/V/V group, is aborted, and the 



clasper-hook, bearing the typical teeth, seems finer and shorter. Its 



