G. C. DAVIS. 249 



Rhoru!!« bicolor Cress. {Mesoleptus), Proc. Ent. Soc. Phil. iii. 269. 

 Priunopoda riijiconris Ashm., Trans. Anier. Ent. Soc. xxiii, 198. 

 %. — 8 mm. Head and thorax black; abdomen rufous, with three apical seg- 

 ments piceous and petiole slightly so; legs rufous, trochanters and four anterior 

 coxse whitish ; clypeus, mandibles and antennas rufous, tegulffi whitish ; wings 

 hyaline, iridescent, nervures and stigma brown, paler at base; stigma broad, 

 subtriangularly lanceolate, transverse median nervure unites back of basal : 

 humeral cross nervure broken slightly above the middle; head and pleurae 

 coarsely and closely punctured ; face narrowed beneath, clypeus scarcely elevated 

 or separated from the front; parapsidal grooves indicated anteriorly; carinfe 

 obsolete on metathorax ; abdomen polished, shining; petiole smooth, without 

 ridge or groove. 



Three specimens from Penusylvaiiia, New York and Michigan 

 (type, colL Amer. Ent. Soc). 



Rlioriis ottawaeiisis Harr.. Can. Ent. xxiv, 98. 



9 . — 7 mm. Bhick, shining, with orbits, mouth-parts, tegulfB and parts adjoin- 

 ing it yellowish white: clypeus, scutellum and legs, pale rufous; posterior tibiae 

 and tarsi luteous, dusky at 'apex ; antennse brown, long, slender, pilose; wings 

 large, hyaline, nervures brown, stigma large, yellow; radius starting back of the 

 middle in the triangular stigma; areolet large, rhomboido-triangular, scarcely 

 petiolate : second recurrent nervure straight; third discoidal cell strongly arched 

 above and very narrow at base, so that it is almost triangular; humeral cross 

 nervure not broken; head disc-shaped ; face very flat and broad, coarsely punc- 

 tured and with median vertical carina; clypeus scarcely distinct from the face, 

 rounded at apex ; mandibles arched ; thorax pilose, polished, finely and sparsely 

 punctured, most coarsely so on lower pleurae and sternum ; parapsidal gi-ooves 

 wanting; scutellum moderately elevated, oval; metathorax rounding, polished, 

 completely areolated with very fine, but distinct carinae ; abdomen highly pol- 

 ished, subcompressed at apex; ovipositor exserted 1.5 mm.; petiole slender, 

 polished, moderately broad at apex, narrow below the spiracles, which lie slightly 

 back of the middle : legs well developed ; posterior tibiae and tarsi much elongate ! 

 tarsal claws strongly pectinate with long, close set teeth. 



Described from Mr. Harrington's type from Ottawa, Canada. 



I.ABRO€TO!VlJS Foerster. 



(^Synopsis der Fam. und Gatt. der Ichneumonen, 1868.) 



IiabroctoiiU!S ai*ticiilat.ii!<i Cress. (Tryphon), Trans. Am. Ent. Soc. ii, 110. 



9 . — 4.5 mm. Black, with abdomen piceous and legs yellowish bi'own ; clypeus, 

 mouth-parts, scape beneath, tegulae, spot in front, apical margins of abdominal 

 segments, trochanters and four anterior coxiB yellowish white ; posterior tibiae 

 dirty white, dusky at apex: posterior coxae piceous; antennas brown; wings 

 hyaline, iridescent, nervures and stigma brown; areolet wanting; stigma deep 

 triangularly lanceolate; humeral cross nervure of hind wing broken much below 

 the 7"aiddle; body shining, polished, pilose; head flat, slightly narrowed and 

 elongate toward mouth-parts; face oval, punctured, and with minute tubercle; 

 clypeus large, elevated, and with transverse ridge near base ; apical margin with 

 row of long, stiff" hairs; parapsidal grooves present anteriorly ; mesonotum ele- 

 vated; metathorax completely areolated ; aljdomen very broad in the middle and 



TRANS. AM. ENT. SOC. XXIV. (32) SEPTEMBER, 1897. 



