AET. 11 NORTH AMERICAN ICHNEUMON-FLIES DeGANT O 



apex; metapleura smooth and polished; first tergite rugiilose, the 

 median carinae reaching nearly to apex; second to sixth tergites 

 strongly tuberculate, the impressions well defined and rugulose, 

 the sculpture gradually lessening beyond the fourth; the apices 

 polished in center, somewhat coriaceous laterally; legs of medium 

 length, the hind basitarsus equal in length to the three following 

 joints combined; wings long, stigma very narrow, first intercubitus 

 more than one-half the length of the second abscissa of cubitus, 

 postnervulus broken well below the middle; nervellus broken 

 slightly below the middle. 



Black; antennae, clypeus, and mandibles brownish; palpi, tegulae, 

 the apices of all trochanters and femora except the posterior, all 

 tibiae on the outside except the posterior at apex, and the first three 

 joints of the middle and hind tarsi, except at apex, white; hind 

 femora and tibiae at apex, the latter beneath, the apices of the first 

 three and the whole of the fourth and fifth tarsal joints of middle 

 and hind legs fuscous; legs otherwise reddish; wings hyaline, veins 

 dark, costal margins pale. 



Type locality. — Parr Island, East Spence Lake, Ontario, Canada. 



Ti/i^e.— U.S.N.M. No. 44128. 



Remarks. — Described from three females as follows : Type and 

 paratype A, collected by the writer at type locality on July 6, 1931 ; 

 paratype B, in the United States National Museum, collected at 

 Oswego, N. Y., on June 27, 1896. Paratype B has much more red 

 on the body than the type and paratype A, but the inconsistency 

 of color in this genus, with this specimen's consistency in structure 

 vvith the type, leaves little doubt as to its identity. 



LATHROLESTES VISSCHERI, new species 



Different from all described North American species of Lath- 

 rolestes in its size and in the venation of wings, and from L. nasoni 

 Davis, with which it may be confused, in the red abdomen in both 

 sexes and larger claspers in the male. The species of this genus 

 are not common, and their host relationship, I believe, is unknown. 

 The shape of the ovipositor, which is incised beneath at apex, com- 

 bined with its obtuse point, offers no suggestion. 



Female. — Length 7 mm. Antennae 34-jointed in type. Ovipositor 

 exserted and as long as the apical truncature of abdomen. Head 

 transverse: temples bulging, somewhat more so than the cheeks; 

 face broader than long and slightly produced below antennae, the 

 interantennal line nearly equal to the apical width of mandibles; 

 clypeus wide, convex, broadly rounded and with long hairs at apex, 

 the foramina distinct; malar space one-half basal width of man- 

 dibles; vertex slightly raised, extending posteriorly, about the di- 



