126 THE CANADIAN ENTOMOLOGIST 



joint eleven, though it occurs conspicuously on the preceding 

 joints. One specimen was observed that had it on joint eleven, 

 but it occurred on one side only. 



When ready to pupate, the larva leaves tjie burrow and 

 changes in the ground. The pupa is of normal appearance, and 

 the period is of usual duration — about a month. 



Stenocelis was placed in Hydroecia by Dr. Dyar, his type being 

 imperfect in the characteristic tufting that is a feature in differ- 

 entiating these moths. It is a conventional Papaipema, however, 

 and was" so referred by Hampson, perfect material having the 

 typical tufting present, while the genitalia conform to the unusual 

 pattern of this group. What is really a better characteristic exists 

 in the larval appearance which accords with the unique pattern 

 disclosed in Papaipema — at least, as occurs with thirty of the 

 species whose larvae are known. One very notable departure 

 happens with frigida, whose larva approximates Hydroecia char- 

 acteristics, and is evidently a relic of the stem species, whence both 

 these groups sprung. 



The genitalia have not been discussed. These male characters 

 show little to distinguish them from the general type. The broad, 

 heavy side-piece, or clasp is tipped with an irregularly formed 

 cucullus, shaped somewhat like a foot with an over-developed 

 heel, and having the toe, which is the anal angle of the corona, 

 pointing ventrally. This area is set with spine-like setae that point 

 anteriorly. The harpe is a stout, sharp-pointed hook, curved 

 like a cow's horn. It is shorter than with most species, and is 

 toothed slightly on the outer edge. These teeth, too, are of less 

 prominence. The clavus is marked only by a slight prominence, 

 which is covered with fine setae. The uncus is the usual finger-like 

 appendage, widened a little near the point. 



From our studies of southern flora, now that the food-plant 

 is known, we might predict stenocelis may find its principal metro- 

 polis in the Dismal Swamp region of Virginia, where Woodwardia 

 reaches a prolific development. 



