THE CANADIAN ENTOMOLOGIST. 259 



young larvie have already emerged ; we have also hopes of securing a 

 pairing oi placeJiiia ; in any case, we have received a living female of this 

 species from S. Carolina, which has already deposited several hundred ova. 



If we succeed in breeding these species, we hope later to publish the 

 full life histories. For the present, we append at the conclusion of this 

 paper a more detailed description of the final stages oi placentia and 

 phyllha than given above. 



As to whether ///j^/Z/r^z is specifically distinct from rectiliiiea we are 

 at present unable to judge ; there seem to be certain points of difference 

 between our description of mature p/iyliira and Mr. A. Gibson's of 

 redilinea (Can. Ent., XXXV, 117); this may, however, be merely due to 

 the different modes of expression used ; we would be very pleased to 

 receive eggs of the true redilinea in order to try and settle the question 

 by breeding. 



Apaiitesis placentia (mature larva). 



Head black, palpi and mouth parts slightly flesh-coloured ; body 

 velvety black, occasionally somewhat marbled with light gray ; tubercles, 

 entirely black, with the exception of I very large, rather conical from an 

 irregular quadrate base, shiny, wiih bunches of stiff, black setge, which 

 show but few traces of spines ; a broken orange-red dorsal stripe, rarely 

 present on the thoracic segments, and often almost entirely lacking ; 

 spiracle black ; prolegs reddish-pink, with a few scattered black setse. 



Length, i}^-2 in. 



A. phyllira (mature larva). 



Head black ; base of palpi ochreous to reddish orange ; body black, 

 more or less strorgly marbled with dark gray, often leaving portions of the 

 ground colour showing as subdorsal black stripe just below tubercle II ; 

 laterally and ventrally lighter, due largely to increase of marbling ; tuber- 

 cles, especially laterally, more or less strongly tipped with pale orange or 

 ochreous, the base remaining largely black; tubercle I very minute; 

 others large, more regularly rounded than va placentia^ with bunches of 

 stiff, black, strongly barbed set^e, which show a tendency to become 

 whitish laterally ; a prominent dorsal stripe, narrow on anterior portion of 

 segment, broadening out behind tubercle I, varying in colour from creamy 

 to orange yellow, occasionally reduced to a series of dorsal spots ; spiracle 

 narrowly oval, orange ; legs black, sometimes white-striped ; prolegs 

 orange-yellow. 



Length, i^-i^ in. 



