ART. 2. ICHNEUMOlSr-FLY GENUS METEORUS MUESEBECK. 35 



ish, except the scape and pedicel beneath; and the body more or 

 less varied with blackish, especially the lateral lobes of mesoscutum, 

 the lateral face of scutellum, propodeum, the postpetiole and poste- 

 rior coxae. These blackish markings will be found extremely vari- 

 able, no doubt. 



Described from five specimens, from the C. F. Baker collection 

 labeled as follows: Type, allotype, and one paratype, "Ariz. 2551"; 

 one paratype, "Ariz. 1856"; another paratype, "Ariz. 2522." Other 

 material of this species in the United States National Museum, but 

 not included in the type series, consists of one specimen labeled 

 "N. M. 2310, C. F. Baker Collection"; one from Santa Rita Moun- 

 tains, Arizona (Hubbard and Schwarz); three from Mesilla, New 

 Mexico (Cockerell) ; and one from Chiric Mountains, Arizona (Hub- 

 bard) . 



27, METEORUS ACRONYCTAE, new species. 



Easily distinguished from euschausiae to which it is closely re- 

 lated, by the shorter antennae; by the incomplete occipital carina; 

 by the first abscissa of radius being as long as, sometimes longer 

 than, the second; the recurrent vein entering second cubital cell; 

 the shorter apical segment of maxillary palpi; the color markings; 

 and the smaller size. 



FemaZe.— Length, 4.5 mm. Head transverse, descending abruptly 

 behind the ocelli; temples receding unusually strongly; occipital 

 carina practically effaced for a short distance in the middle; malar 

 space nearly as long as basal width of mandible; last segment of 

 maxillary palpi distinctly shorter than the preceding segment; face 

 as broad at base of clypeus as long, minutely sculptured, shining; 

 antennae 30-segmented; first and second flagellar segments about 

 equal; vertex and temples polished; ocell-ocular line about equal 

 to diameter of an ocellus. Thorax stout, as broad as the head; 

 mesonotal lobes not prominent, somewhat flattened, rather opaque; 

 parapsidal grooves crenulate, not deep; disk of scutellum strongly 

 convex, polished; propodeum rugoso-reticulate, short, the dorsal 

 face unusually short, the posterior face very abrupt and strongly 

 hollowed out medially; pro- and mesopleura mostly smooth and 

 shining; metapleura finely rugulose; recurrent vein entering second 

 cubital cell; first abscissa of radius as long as the second and longer 

 than nervulus; last abscissa of radius a little shorter than last ab- 

 scissa of cubitus and reaching wing margin much before apex of 

 wing; posterior coxae a little roughened on outer face; abdomen 

 short and stout; first tergite without fossae on the petiole, the 

 postpetiole very finely closel}^, longitudinally striate, the striae 

 converging strongly behind; ventral margins of first tergite meeting 

 for nearly half the length of the segment; remainder of abdomen 

 smooth and polished; ovipositor sheaths projecting two- thirds the 



