472 PROCEEDINGS OF THE NATIONAL IMUSEUM vol. 90 



Anterior wing more than two and one-half times as long as broad; 

 submarginal, marginal, postmarginal, and stigmal veins about in the 

 proportions of 57, 27, 13, and 8, respectively; basal cell completely 

 outlined by distinct rows of strong hairs and with a few hah's within 

 the cell; ciliation on disk of wing moderately dense; marginal cilia 

 very dense. 



Abdomen about as long as thorax, distinctly sculptured on the 

 sides, the first tergite dorsally smooth and the following tergites dor- 

 sally very wealdy lineolately sculptured; first tergite constituting a 

 little less than one-third length of abdomen, a little more than twice 

 as long as second; thnd tergite one and one-half times as long as second; 

 fourth about equal in length to second; fifth a little shorter than fourth; 

 sixth and seventh together about equal to fourth; ovipositor sheaths 

 about as long as abdomen. 



Male. — Length 3.2 to 3.9 mm. Similar to the female, except that 

 the scape is dark, the first funicular joint is no longer than broad, the 

 other funicular joints are all sligiitly broader than long, and the second 

 abdominal teigite is very short, sometimes almost completely covered 

 by the first tergite. 



8. MONODONTOMERUS MONTIVAGUS Ashmead 



Monodontomerus montivagus Ashmead, Colorado Biol. Assoc. Bull. 1, p. 25, 1S90. 

 Monodontomerus americanus Girault, Descriptiones stellarum novarum, p. 11, 

 1917. (New synonymy.) 



The types of montivagus and americanus have been compared, and 

 they do not differ in any dependable character. The holotype of 

 americanus is a teneral specimen as shown by other specunens collected 

 at the same time and place, and this fact accounts for the slight 

 differences in color mentioned by Girault as distinguishing it from 

 montivagus. 



Feraale. — Length 3 to 5.1 mm.; ovipositor 1.6 to 2,8 mm. General 

 color distinctly and nearly uniformly metallic green with brassy re- 

 flections of variable intensity on head and thorax; femora metallic 

 green; all tibiae, all tarsi, antennal scape, and mandibles reddish 

 testaceous, the scape sometimes fuscous apically, flagellum black; 

 wings hyaline, usually with a very light infuscation at stigmal vein; 

 abdomen shhiing dark gi'een; ovipositor blackish with the lower mar- 

 gin more or less pale. Vestiture pale grayish. 



Eyes weakly pilose, the pile short and inconspicuous; malar space 

 equal to approximately one-third the length of eye but variable in 

 length; malar groove distinct; anterior margin of head straight; 

 mandibles with three short teeth, the ventral tooth not or very little 

 longer than the middle one ; ocellocular liue barely longer than diameter 

 of lateral ocellus; antennae inserted a little above lower margins of 



