34 PACKARD, NOTES ON THE 



In this genus the front of the head is as broad as the distance 

 from the insertion of the antennae to the front edge of the cly- 

 peus, being full and convex. Ocelli large. Eyes full and 

 globose, of the usual size. When denuded the clypeus is seen 

 to be short and scutellate, as long as broad, rising between the 

 antennas into a low obtuse point. In front it sweeps rapidly 

 away from the eyes, rising from them, while the front edge 

 contracts rapidly, the sides being slightly excavated just behind 

 the square subtruncate front edge, which seen from below is 

 somewhat arched. On the surface is a slight mesial ridge ex- 

 tending and increasing in size to the base of the piece. The 

 two pieces behind, i. e., occiput and epicranium are together in 

 length equal to the clypeus, so that the antennae are situated 

 very exactly midway from the base to the front of the head. 

 The "vertex" of the head is clothed with much longer scales 

 than the frontal ones which project out between the antennas. 

 The occiput is regularly transversely oblong, being about four 

 times as wide as long. The epicranium is narrower, subtrian- 

 gular, truncate in front ; and at its base encroaches a little upon 

 the occiput, than which it is one-fourth longer. The triangular 

 labrum is short, broad and obtusely pointed. Mandibles slen- 

 der, being nearly twice as long as broad, not very acute, with 

 long setae converging over the maxillae which are well devel- 

 oped, and when unrolled reach to the base of the abdomen. 

 The palpi are long and slender, of good size, porrect, somewhat 

 flexuous in their course, curving downward at their base, and 

 then rising a little, in front of the head, while their tips are a 

 little depressed. First joint nearly as long as the second, with 

 long depressed scales beneath, but generally the scales are fine. 

 Second joint twice as long as broad, and with the third 

 which is a little shorter and acute, reaches out in front of the 

 clypeus. 



Antennas half as long as the primaries, with long finely 

 scaled pectinations, each of which bears a terminal seta. In the 

 female the pectinations equal in length that of the joints of 

 the antennae. 



Thorax and body generally, stout and finely scaled. Patagia 

 large free from the tergum beneath, reaching behind nearly to 

 the posterior edge of the meso-scutellum, while its posterior 

 scales reach to the base of the abdomen. The prothoracic scales 

 are orbicular, large, and are unitedly considerably broader than 

 the head. Meso-scutum short 3 broader than long ; scutellum 



