22 PROCEEDINGS OF THE NATIONAL MUSEUM Vol. 76 



from a broad base to its apex, one-half to two-thirds the distance to 

 posterior margin; inclosed area faintly shagreened. Dorsal aspect 

 of propodeiim outside of areola with sparse, round primary punc- 

 tures. Lower portion of sides of propodeum polished and minutely 

 setulo-punctate on posterior half. Posterior aspect of propodeum 

 with a few shallow punctures on upper disk; carina on lowest fourth 

 or less. Fourth tergite without preapical band, but with a deep 

 preapical groove broadly overlapped at the middle, though not to 

 the extent of covering the dorso-medial apex; primary punctures 

 dimpled dorsally; a row of minute punctures visible on dorsum just 

 behind the edge of the folded groove. First sternite with a lateral 

 groove on posterior half, and with shallow punctures anteriorly. 

 Tergites 2 to 5 with marginal incised lines; tergites 3 and 4 dor- 

 sally with dense secondary punctures, from which arise stiff, short, 

 erect, broAvn hairs best seen in profile and entirely lacking on the 

 sides. Pygidium sparsely reticulo-punctate, sometimes faintly car- 

 niate; impunctate emargination small; apical impunctate portion 

 longitudinally wrinkled and plainly shagreened ; sting sheaths and 

 palps not protruding while in repose. Length, 8 mm. 



Male. — Clearly resembles the male of antigenata from which it 

 differs in the following characters. Vertex with primary punctures 

 back of ocelli largely of th-rd-degree density, usually sparsely beset 

 with minute punctures. Front with poorly defined medial impunc- 

 tate stripe and vestigial groove; preocellar region of front w^ith 

 sparse primary punctures of second and third degree density, witlt 

 several interspaces as broad as an ocellus. Primary punctures of 

 pronotum largely of third-degree density, with slight tendency 

 toward series of second degree. First tergite with its preapical fold 

 terminating well before the apex of the segment, Avell flattened 

 apically, and followed by a row of very small punctures not covered 

 by the fold at any point on dorsum; dimpled punctures separated 

 from apex of fold by at least several times their average diameters. 

 Impunctate margins of intermediate tergites at most three times as 

 wide as adjacent primary punctures. Length 5 to 6 mm. 



Distribution. — Keikido, Chosen. 



Type and allotype.— Q^t. No. 41774, U.S.N.M. Type, female, 

 Suigen, Chosen, August 18, 1925 (Sato), Gardner No. 10. Allotype, 

 male, Suigen, Chosen, Jap. Beetle Par. Exp. 318. 



Paratypes.—KW from Suigen', Chosen. In the United States Na- 

 tional Museum: One female, August 3, 1925 (Sato); 1 female 

 August 23, 1925 (Sato); 3 females, August, 1926 (Gardner), all 

 labeled " Gardner No. 10 " ; 1 female, no date ; 4 females, Jap. Beetle 

 Par. Exp. 318. In the collection of the Japanese Beetle Laboratory : 

 One female, August 26, Gardner No. 10, and 1 male, Jap. Beetle Par. 



