182 Eev. T. A. Marshall's monograph of 



Not common ; I captured several of both sexes once 

 in Leicestershh'e, and a single specimen at Nunton. 



XIX. ICHNEUTIDES. 



Maxillary palpi 5-, labial 4-jointecl. Mesotlioracic sutures dis- 

 tinct. Abdomen sessile, depressed, subclavate or spathuliform, 

 showing 7 — 8 segments above. Fore wings with 3 cubital areolets, 

 the 1st receiving the recurrent nervure ; 2d small, trapeziform, 

 about the size of the stigma (Ichtieutes), or smaller (Proterops) ; 

 radial areolet very short, subtriangular, metacarpus not longer 

 than the stigma ; pobrachial areolet of the hind wings half as long 

 as the prgebraehial. Terebra concealed, or nearly so. 



The group is of very small extent, and completely 

 isolated ; the shape of the radial areolet at once dis- 

 tinguishes the insects ; it resembles in some degree that 

 of Chclonus, but there the likeness stops. Wesmael also 

 compares his genus Acampsis {Si seeiion of Spharopyx), 

 but the similarity extends no further than the head and 

 thorax. Nees v. Esenbeck was acquainted with a single 

 species, for which he established the genus Ichneutes ; 

 Wesmael added two more, one of which he afterwards 

 suppressed, and made known a second genus Proterops, 

 with one species, perhaps described by Fabricius as a 

 Bracon, but subsequently neglected or misunderstood. 

 The insects are sluggish, and attack the exposed larvae 

 of Tenthredinidce, for which purpose they do not require 

 a long terebra. 



First abscissa of the radius much shorter than the 2d ; 

 2d cubital areolet broader than long, its upper side 

 much longer than the 2d transverso-cubical ner- 

 vure ; radius of the hind wings obsolete ; front of 

 the usual length, so that the foremost ocellus is 

 remote from the base of the antennaa . . . . i. Ichneutes. 



First abscissa of the radius longer than the 2d ; 2d 

 cubital areolet longer than broad, its upjoer side 

 shorter than the 2d transverso-cubical nervure ; 

 radius of the hind wings distinct; front so abbre- 

 viated that the foremost ocellus is situated between 

 the antennaj . . . . . . . . . . . . ii. Pkotekops. 



i. Ichneutes, Nees. 



Nees, Mag. Ges. Berl., 1816, p. 275 ; Mon., i., 156 ; 

 Wesm., Nouv. Mem. Ac. Brux., 1835, p. 195. 



Head transverse, as wide as the thorax ; occiput not margined ; 

 face quadrate ; clj'peus rounded behind, straight on the front edge, 



