REHX AND HEBARD 47 



E. Tegmiua of male projecting caudad of the pronotal disk a distance 

 considerablj' exceeding half the pronotal length. Pronotum of male 

 proportionately very large. Subgenital plate of female narrowly 

 V-emarginate and with lateral portions of the plate broadly rounded 

 distad. (Caudal femora robust and quite short; ovipositor straight, 

 apex ventral. testaceus (Scudder) 



EE. Tegmina of male projecting caudad of the pronotal disk a 

 distance distinctly less than one-half the pronotal length. Prono- 

 tum of male relatively shorter or narrower. Subgenital plate 

 of female when narrowly V-emarginate always having the lateral 

 portions of the plate at least subangulate distad. 



F. Caudal femora more elongate and slender. Pronotum in gen- 

 eral more elongate, the disk relatively more slender, the lateral 

 angles less divergent caudad. Tegmina of male sHghtly produced 

 distad. (Ovipositor straight, with apex ventral.) 



pachymerus (Burmeister) 

 FF. Caudal femora less elongate, more robust. Pronotum more 

 abbreviate, more robust, the disk relatively broader, the lateral 

 angles strongly divergent caudad. Tegmina of male broadly 

 rounded distad. 



G. Subgenital plate of female U-emarginate. Ovipositor dis- 

 tinctly arcuate. Lateral angles of pronotal disk strongly sig- 

 moid. Eyes more prominent. monticola Davis 

 GG. Stibgenital plate of female V-emarginate. Ovipositor 

 straight, very faintly arcuate or faintly decurved. Lateral 

 angles of pronotal disk less sigmoid and more regularly {i.e. 

 directly) diverging caudad. Eyes as usual in the genus. 



davisi new species 



Atlanticus testaceus (Scudder) (PI. VI, figs. 2, 3, and 20; pi. VII, figs. 1, 10 

 and 19; pi. VIII, figs. 1 and XL) 



1862. T[hyn'onotus] pachymerus Scudder (not Dedicus pachymerus Bur- 

 meister, 1838), Boston Journ. Xat. Hist., vii, p. 453. [Connecticut; Mam- 

 moth Cave, Kentucky.] 



1893. Thyreonotus pachymerus Davis (not Dedicus pachymerus Burmeister, 

 1838), Canad. Entom., xx\-, p. 108. [Staten Island, New York.] 



1894. [Atla7ilicus] pachymerus Scudder (not Dedicus pachymerus Burmeister, 

 1838), Canad. Entom., xxvi, pp. 179, 180, 183. (In key to species of the 

 genus.) 



1894. Atlanticus pachymerus Beutenmiiller (not Dedicus packymerus Bur- 

 meister, 1838), Bull. Amer. Mus. Xat. Hist., vi, p. 285, pi. VII, fig. 7. [Vicin- 

 ity of New York City.] 



1898. Atlanticus pachymerus Lugger (not Dedicus pachjmerus Burmeister, 

 1838), Bull. 55, Minn. Agr. Exp. Sta., p. 335, fig. 60. [Minnesota.] 



1900. Engonidspis testacea Scudder, Proc. Davenp. Acad. Nat. Sci., viii, 

 p. 97. [Missouri?) 



TRAXS. AM. EXT. SOC, XLII. 



