K0.1157. JAPANESE HYMENOPTEBA—MARLATT. 503 



25. DOLERUS OBSCURUS, new species. 



Female. — Length, 7 mm.; expanse, 15 mm. ; rather robust; head and 

 thorax coarsely punctured, opaque, and with abdomen beneath rather 

 densely clothed with grayish hairs; abdomen smooth, shining; antennie 

 about as long as head and thorax, joint 3 much longer than 4; claws 

 with very minute inner tooth; sheath rather long, tapering, rounded at 

 tip. Color dull black, pronotum reddish, teguhe pale, extremely nar- 

 row posterior margins of abdominal segments whitish; legs reddish 

 ferruginous; tarsi and tibia; distinctly and rather uniforndy infuscated, 

 coxie and trochanters black ; femora more or less infuscated on upper 

 edge; wings hyaline or nearly so; veins and stigma dark brown. 



Male. — Much more slender and elongate than female; antennu3 much 

 longer than head and thorax, joint 3 but little longer than 4. Color 

 uniformly dull black; the extreme angles of pronotum together with 

 tegulic reddish yellow; legs yellowish and infuscated, posterior femora 

 black except basally; extreme tips of posterior tibiai dark brown, all 

 tarsi and particularly posterior pair infuscated; wings as in female, 

 except that the stigma is somewhat narrower and not so distinctly 

 marked with white at base. 



Type.—^o. 3835, U.S.N.M. 



Described from two specimens. The male was associated with the 

 female by the collector, but difl'ers considerably in color and general 

 appearance; not, however, more than is often seen in this genus. (Ko 

 locality given), (No. 5). 



26. DOLERUS UMBRATICUS, new species. 



Female. — Length, 11 mm.; expanse, 22 mm.; very robust, abdomen 

 broader than thorax, depressed and with sharp central ridge; head and 

 thorax, particularly the former, very deeply and coarsely rugose ; abdo- 

 men smooth, shining; clypeus deeply circularly emarginate; antennoe 

 scarcely longer than head and thorax, tapering, joint 3 distinctly longer 

 than 4; claws with rather obtuse and strong inner tooth projecting at 

 right angles to claw; sheath broad, obliquely tapering, covered and 

 margined with rather long curved hairs; stigma narrow. Color of head 

 and thorax dull greenish black and red, the latter confined to the pro- 

 notum and anterior and lateral lobes of mesonotum, together with 

 tegulfc ; abdomen metallic blue-black ; legs black with bluish reflections 

 particularly noticeable on femora; wings hyaline, veins black or very 

 dark brown. 



In one specimen the thorax has distinctly greenish reflections and 

 the anterior lobe of the mesonotum has the same greenish- black color 

 as the head and other dark areas of the thorax. 



Type.—^o. 3836, U.S.N.M. 



Described from six specimens. (Gifu zuzushi and Hayashi), (No. 8). 



