52 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 76 



of the usual type of those with grooved hind basitarsus, the basitarsus 

 having also a group of stout spines on the outside and one of the same 

 type at the apex ; major calcarium of the hind tibia widest at the bend 

 near the middle. Tergites without preapical groove or interrupted 

 minute punctures, the impunctate margin about four times width of 

 largest adjacent primary punctures at middle of dorsum. 



Male. — Vertex with numerous minute punctures on the interspaces 

 back of the ocellar triangle, densest along the median line; front 

 with conspicuous dense secondary punctures extending upward on 

 the interspaces to the level of lowest ocellus. Antennocular distance 

 about equalling the diameter of an antennal fossa. Clypeoantennal 

 distance one and one-fourth times width of clypeal extension at its 

 apex, margin of latter broadly impunctate and upcurled. Flagellum 

 of antenna black ; third antennal joint not longer than board. Mese- 

 pisternum with its secondary punctures well differentiated from the 

 primaries and more numerous everywhere, the interspaces densely 

 studded with them. Scutum with impunctate apex wider than the 

 diameter of the largest of the lower primary punctures. Metanotum 

 usually with a vague medial impression ; densely beset with primary 

 punctures nearly as large as the largest of the scutellum. Preapical 

 hand of first tergite nearly uniform in width, its anterior margin 

 often abruptly impressed at the sides, and its punctures of uniform 

 size, moderately well separated, in a series about three punctures 

 wide. First sternite with polished disk, lateral grooves on posterior 

 half, coriaceous to shallowly punctate anteriorly, with short anterio- 

 medial keel. Tergites shagreened, without grooves or vestigial punc- 

 tures over the apical dorsal margins, the impunctate apices medially 

 only about three times as long as width of largest adjacent primaries. 

 Sixth sternite with an appressed denticle, its elevated edge rather 

 long, and more nearly parallel to the apex of the sternite than to 

 the longitudinal plane. The impunctate, polished medial stripe of 

 the hypopigium narrow and linear. 



Disti^hution. — Iwate, Kanagawa, Japan ; Keikido, Chosen ; Kiang- 

 su and Chekiang, China; New Jersey, United States of America. 



In addition to the type material at the U. S. National Museum, 

 the writers have examined the following material in the collections 

 of the U. S. National Museum and the Japanese Beetle Labora- 

 tory: Kecoveries made at Kiverton, N. J., 11 males, August 12, 192G 

 (Allen) ; 18 males with dates from August 9 to 16, 1927 ; 38 females, 

 1927. From Morioka, Japan, 1 female, August 20, 1920 (Clausen). 

 From Kowai, Japan, 1 female, September 1, 1921 (Clausen) ; 48 males 

 and 4 females, reared at Kiverton in 1922, Exp. 4; 16 males and 3 

 females, reared at Kiverton in 1923, Exp. 76 ; 6 males and 75 females, 

 August, 1926; 2 females, no date. From Yokohama, Japan 1 male 



