Pomnna Collesie, Claremont. California 



27 



in the cephalic region close to the median line, two pair on each 

 segment of the thorax, two pair each on segments 1 and 2 of the 

 abdomen, one pair each on segment 3, 4, 5 and 6 and three pair on 

 segment 7 of the abdomen. In the submarginal area between the 

 papilla-like pores and the margin is a row of the small circular 

 pores and in addition to these some may be found with no apparent 

 regularity near the bases of the submarginal papilla pores. The 

 sutures of the case are distinct, the last three of the abdomen 

 strongly reflexed caudad. The crenulations of the margin are 

 broad and the incisions shallow. The submarginal area is not set 

 off by a raised ridge or depression. Vasiform orifice subcordate, 

 with the anterior margin straight, the lateral margins with corru- 

 gations or folds extending inward and downward ; operculum 

 shaped similar to that of the orifice with the caudal end slightly 

 truncate, one-half filling the orifice: lingula subspatulate, densely 

 setose, extending about three-fourths of the length of the orifice, 

 bearing at its distal extremity three pair of lateral lobes and a pair 

 of terminal lobes. Thoracic tracheal folds not evident. Just 

 laterad of the anterior margin of the vasiform orifice is a pair of 



Fig. 2. Asterocltttvn corollis ii. sp. a, pupa-case; b, vasiform orifice, caudal 

 furrow and section of the caudal margin; e, pupa-case showing the 

 wax seci'etions. 



