34 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.63. 



species agree perfectly; wings, in the male, often faintly tinted with 

 brown. 



Distribution. — Illinois, Connecticut, New York, Michigan, Massa- 

 chusetts, Canada. 



Host. — Unknown. 



The discussion is based on the following material: The types of 

 both proximus and exareolatus; 8 specimens from Oswego, 2 from 

 Stony Island, and 1 from the Thousand Islands, New York, 1 from 

 Agricultural College, Michigan, and 12 labeled "Cana. C. F. Baker 

 Collection," in the United States National Museum; 2 in the Cornell 

 collection, one of these from Salines, Ontario, the other from Wau- 

 bamic, Ontario (H. S. Parish) ; 4 in the collection of the Boston 

 Society of Natural History, 2 coming from Brookline, and 2 from 

 Cohasset, Massachusetts; and 2 specimens in Doctor Brues's col- 

 lection, from Woods Hole and Southbridge, Massachusetts. 



26. METEORUS ARIZONENSIS, new species. 



Very close to proximus, as noted in the discussion of that species, 

 the males being especially difficult to distinguish. However, the 

 differences mentioned in the key and under proximus will separate 

 the two species. 



Female. — Length, 5 mm. Head transverse; face broader at base 

 of clypeus than long, very minutely sculptured, shining; malar 

 space about as long as basal width of mandible; antennae 30-seg- 

 mented, the segments shortened; ocell-ocular line distinctly longer 

 than diameter of an ocellus; vertex and temples smooth and polished; 

 mesoscutum shining, parapsidal furrows broad, not deeply impressed; 

 mesonotal lobes very weakly punctate; propodeum evenly coarsely 

 rugose, without prominent carinae, the posterior declivity rather 

 abrupt and distinctly hollowed out medially; stigma rather narrow; 

 radial cell short, the radius reaching metacarpus much before apex 

 of wing; first abscissa of radius much shorter than the second, the 

 latter more than half the length of first intercubitus; recurrent vein 

 practically interstitial with first intercubitus; nervellus distinctly 

 longer than lower abscissa of basella; posterior coxae closely punc- 

 tate, more or less granular; abdomen stout; first tergite mostly 

 smooth and polished, very finely longitudinally striate laterally on 

 postpetiole, the striae converging strongly behind; remainder of 

 abdom.en smooth and polished; ovipositor sheaths at least two- 

 thirds the length of the abdomen. Uniformly ferruginous; antennae 

 ferruginous, slightly infuscated at apex; wings sometimes a little 

 tinted with brownish; legs, including posterior tibiae and tarsi, 

 concolorous with the body. 



Male. — Like the female, except that ocelli are usually a little 

 smaller; the malar space longer; the antennae dark brown or black- 



