J. H. MERRILL 149 



at the apex. Pronotum reaching to near the top of the head, rising rather 

 perpendicularly in front; the mesonotum projects a little over it, and rises 

 from the scutellum to the apex, which has a distinct margin; the margin pro- 

 jects upward in the center and is depressed in the middle. Mesonotum 

 transversely striated as usual and with a longitudinal furrow on each side of 

 the apical three-fourths, scutellum shining, obscurely punctured, broader 

 than long, shghtly narrower towards the apex. Pleurae shining, obscurely 

 punctured, a longish longitudinal hoUow in the middle. The mesonotum is 

 black except laterally in front and down the center. Scutellum testaceous, 

 the sutures black. There is a longish black mark under the fore-wings; 

 the base and apex of the metanotum, and a broad line down its center are 

 black. The longish curved spiracles are bordered with black. Metanotum 

 shining, impunctate, a curved transverse keel runs across its center and an 

 obhque one from the spiracles to the apex. Abdomen shining, somewhat com- 

 pressed, black above, the apex pilose, in the center of the penultimate segment 

 is a somewhat triangular depression, covered with a white membrane; the 

 last segment above forms a projecting thickly pilose lobe; on the lower side 

 it projects more and ends in two horny processes which clasp the ovipositor 

 Ovipositor nearly three times longer than the body, white at the apex. Legs 

 shining, the hind coxae black at the base on the lower side. Areolet large, 

 triangular, receiving the recurrent nervure in the middle." Original descrip- 

 tion from Cameron. 



Apechoneura carinifrons (Cameron) 



Rhyssn carinifrons Cameron, Biol. Cent.-Am., Hymen., i, 1886, p. 261, 9 d^ . 

 Apechoneura carinifrons Schmiedeknecht, Gen. Ins., Fasc. 62, 1907, p. 60. 

 Apechoneura carinifrons Morley, Rev. Ichneumon., ii, 1913, p. 24. 



Type. — In the British Museum. 



"Testacea, nigro varia, antennis nigris, medio apicique subtus testaceis; 

 pedibus rufo-testaceis; basis et apice coxarum posticarum, apice femorum, 

 dimidio apicali tibiarum posticarum tarsisque, nigris; ahs hyahne, apice 

 fumato. Habitat, Nicaragua. 



"Antennae as long as the body, the base, the middle narrowly and the apex 

 (except the extreme point), testaceous on the lower side. Face transversely 

 punctured, the vertex impunctate, a distinct keel (separating the antennal 

 depression) runs down from the ocelli to a little below the base of the antennae ; 

 eyes margined, especially on the inner side and above; testaceous, the mandi- 

 bles, the antennal depressions, a broad transverse band on the vertex enclosing 

 the ocelli and the hind region, black. Thorax formed as in nigritarsis, 

 testaceous; the mesonotum (except a broad mark on the center), the sutures, 

 the base of the metanotum broadly, the sides of the prothorax in front, a 

 large mark on the mesopleura, and the metaplcura close to the sternum, black. 

 In the center of the metanotum two short keels run from the transverse keel, 

 forming a somewhat square area. Abdomen black; the ventral surface, a 

 longish mark at the base of the first segment in the center, its apex and the 

 apices of the other segments broadly testaceous. The middle coxae are black 



TRANS. AM. ENT. SOC, XLI. 



