ART. 2. ICHNEUMON-FLY GENUS METEORUS MUESEBECK. 13 



abscissa of basella is about equal to nervellus, and also subequal 

 with upper abscissa of basella; in size the species agrees with nivei- 

 tarsis, being about 6 mm. in length. 



Distribution. — New Jersey, Pennsylvania, Rhode Island, Massa- 

 chusetts, New Hampshire, Vermont. 



Host. — Unknown. 



The foregoing discussion is based on the following specimens : The 

 type, which is a male from New Jersey; two other males in the Phila- 

 delphia Academy of Sciences, with no locality data; five specimens, 

 representing both sexes, in the collection of the Boston Society of 

 Natural History, four of these having been taken at Mount Equinox, 

 Vermont, and one at Chester, Massachusetts, by Mr. C. W. Johnson; 

 one female from Ridgewood, New Jersey, in the Cornell University 

 collection; five specimens, including both sexes, in the collection of 

 Dr. C. T. Brues, from the following localities — Woods Hole, Chester, 

 and Williamsburg, Massachusetts; Cornish, New Hampshire; and 

 Buttonwoods, Rhode Island; and one male from Roxboro, Pennsyl- 

 vania, in the collection of Mr. A. B. Champlain, of Harrisburg, 

 Pennsylvania. 



4. METEORUS MAXIMUS, new species. 



This is the largest of our North American species of Meteorus and 

 resembles very closely the European alhiditarsis Curtis. It apparently 

 differs from the latter species in the somewhat longer radial cell, the 

 much less prominent spiracles of the first abdominal segment, the 

 more slender abdomen, and the slightly longer ovipositor. 



Female. — Length 10 mm. Head transverse; face a little broader 

 at base of clypeus than long, punctate, shining, slightly convex; 

 maxillar}^ palpi long, the last segment slightly longer than the pre- 

 ceding segment; eyes very large, extending nearly to the base of the 

 mandibles, so that the malar space is almost wanting: antennae 

 very long, 47-segmented, the first flagellar segment a little longer 

 than scape and pedicel united; ocelli large, the greatest diameter of a 

 lateral ocellus longer than the ocell-ocular line; temples strongly re- 

 ceding; occipital carina high, the shortest distance between it and a 

 lateral ocellus about one and one-half times the diameter of an ocellus; 

 mesonotal lobes well marked off, the parapsidal furrows sharp and 

 deep, the lobes weakly punctate and shining. Disk of scutellum 

 triangular, a little longer than broad at base; propodeum coarsely 

 reticulated, with two short, rather smooth transverse basal areas; 

 propleura punctato-rugulose anteriorly, and with transverse rugae 

 in the depression; mesopleura with the lower half conspicuously 

 sunken and finely closely punctate, and also with a rugulose area in 

 the upper basal angle; wings with stigma narrow, three times as long 

 as broad; nervulus slightly postf ureal; recurrent vein entering ex- 

 treme apex of first cubital cell; first abscissa of radius less than half 



