480 PROCEEDINGS OF THE NATIONAL MUSEUIVI vol. 90 



13. MONODONTOMERUS JAPONICUS Ashmead 



Monodontomerus japonicus Ashmead, Joiirn. New York Ent. Soc, vol. 13, p. 83, 

 1904. 



Very similar to dentipes and agreeing with the foregoing description 

 of that species except in the following particulars: 



Female. — Length 3 to 3.5 mm.; ovipositor 0.8 mm. Dorsum of 

 first tergite perfectly smooth and polished; ovipositor a little less than 

 half as long as abdomen; ocellocular line not longer than diameter of a 

 lateral ocellus. Scape testaceous, sometimes washed with metallic 

 toward apex; pronotum bluish green; mesoscutum and frequently 

 the scutellum purplish; propodeum, pleura, all coxae, and all femora 

 bluish green, the posterior coxae outwardly often tinted with purplish 

 and the middle and anterior femora sometimes blacldsh with only a 

 faint metallic tinge; tibiae brownish testaceous to very dark brown; 

 tarsi testaceous; dorsum of first tergite bright bluish green, rest of 

 abdomen blackish with a slight bluish tinge. 



The male differs from the male of denti/pes by having the first tergite 

 smooth, the ocellocular line not longer than the diameter of an ocellus, 

 the face brassy green, the mesoscutum purplish, and the posterior 

 tibiae usually somewhat darker. 



The type of this species is from Nikko, Japan, collected by Albert 

 Koebele. Two other specimens in the United States National Mu- 

 seum collection are labeled cotypes but these were collected by 

 Koebele in China and were not mentioned by Ashmead in his descrip- 

 tion. Besides the type material the collection also contams 3 females 

 and 7 males reared February 4 to March 5, 1937, at Nagawa-Mura, 

 Nagano-Ken, Japan, by R. W. Burrill from Diprion nipponicum 

 Rohwer. 



The species is recorded by K. lida ^ as a parasite of Osmia taurus 

 Smith. 



14. MONODONTOMERUS SUBOBSOLETUS, new species 



This species is extremely similar to obsoletus Fabricius. It differs 

 from the few specimens of obsoletus in the collection, however, by 

 having the median depression on the propodeum more distinctly tri- 

 angular, more nearly acute posteriorly, by having the sculpture 

 laterad of this depression composed of distinct oblique rugae instead 

 of irregular reticulation resembling shallow punctation, by having the 

 tooth on the hind femur somewhat more slender, and by having the 

 propodeum metallic green instead of bluish black and the general 

 color of the thorax more metallic. 



Female. — Length 2.75 to 3.4 mm.; ovipositor 0.85 to 1.2 mm. Head 

 metallic green; eyes and ocelli red; mandibles reddish testaceous; 



« Kansai Ent. Soc. Trans. Japan, No. 3, p. 69, 1932. 



