150 Bulletin Wisconsin National History Society. [Vol. 9, No. 4. 



cylindrical, slightly thickened at the middle, subequal to the club in 

 length and distinctly longer than the pedicel, ring-joint and funicle 

 taken together. Pedicel obconic, about a half of the length of the 

 club and somewhat longer than the combined lengths of the two 

 funicle joints and distinctly wider than either of them; the single 

 rin°--joint narrow, not as wide as the base of the first funicle joint 

 and not a third as long as the latter; the first funicle joint wider 

 than long, somewhat shorter than the second which is subquadrate 

 but still slightly wider than long, in general both joints a'oout equal 

 and subquadrate ; the solid club conic-ovate, distinct and forming over 

 half of the flagellum. (From many specimens, |-inch objective, 1-inch 

 optic, Bausch and Lomb.) 



Male.- — The same with the secondary sexual characters pointed 

 out in the generic description and with these particulars : fully 

 winged, agreeing in all particulars with the female with the excep- 

 tion of the antennae and the smaller, ovate abdomen. The antennae 

 with long, numerous, very conspicuous, hair-like bristles on the fun- 

 icle and club, the latter unjointed, the scape, pedicel and ring-joint 

 distinct as in the female but the funicle and club united and with a 

 knotted appearance due to the tubercular spots giving rise to the 

 long hairs and the segmentation is not distinct, sometimes invisible 

 but usually the divisions between the two funicle joints and the club 

 can be distinguished; the part corresponding to the club is also 

 roughened and is not differentiated from the funicle as in the female 

 and as is normal; the hairs are in irregular whorls. In general the 

 segmentation is as in the female, namely 6-jointed with a ring-joint 

 but the funicle and club practically united and clothed with long, 

 slender hairs from tubercles. (From many specimens, §-inch objec- 

 tive, 1-inch optic, Bausch and Lomb.) 



A species characterized by the ciliation of the fore and poster- 

 ior wings, namely in the obliqne line of cilia of the fore wing 

 having usually but 5 cilia and being disconnected from the re- 

 maining discal ciliation ; the short cephalic line of discal ciliation 

 of the posterior wing having usually but 4 cilia, never more than 

 7 and in the half-complete, faint posterior line of cilia of the post- 

 erior wing; by the faintly clouded bascal half of the fore wing: 

 and the uniform body coloration in individuals. It is nearest to 

 semblidis Aurivillius from which it may be most easily dis- 



