228 EDWARD NORTON. 



third largest; remainder shorter and compressed at ends bene:ith ; 

 head finely punctured, a deep suture extending from base of each aa- 

 tennje to occiput, the ridge between pi-odueed between antennae in a 

 sort of blunt, rounded prominence; nasus incurved, with a short spine 

 at each corner; labrum, palpi, teguhB, collar, a short line on pleura 

 above intermediate coxa3, and the legs, white ; a band near apex ot' 

 posterior femora, the ends of their tibia? and their tarsi blackish, claws 

 with an inner tooth, distinct from tip ; wings with a violaceous tinge, 

 nervures blackish. 



% . The body of the male is quite slender, the apex of the four 

 hinder femora and their tibiae above, black. 



New England and Middle States, Virginia. Common. 



2. E. apertus. 



Emphytus apei'ta, Ilari'is' Cat. 



Eniphytus apertus, Norton, Bost. Proc. viii, 1861, 155, 2. 9 '^ • 

 Black ; tergum with rufous sjiots, venter and legs white. Length 0.19^0.25. 

 Br. wings 0.36 — 0.44 inch. 



9 . Body long and slender, shining black ; autennne as in E. inor- 

 natus. Head with a depression at sides of venter and a sinus behind 

 ocelli, ridged on euch side ; nasus slightly incurved, and with the lab- 

 rum, base of mandibles, palpi, tegulte, two sides of anterior angle and 

 a line above intermediate coxge, white ; tergum with reddish connected 

 spots on each segment; venter paler, at apex black; legs reddish- 

 white, apical medial tarsi and tip of posterior tibiae and their tarsi 

 black; spurs long, inner anterior tibial spur bifid, inner tooth of claw 

 large and near the tip. Wings hyaline, nervures blackish, junction 

 of stigma and costa white. 



% . The male has the antenna? ferruginous beneath, apex of venter 

 pale, base black. 



Mass., Conn., Pa., Ya., 111. 



3. E. mellipes. 



Einj>hytu.'i rncllipes, Harris' Cat. 



Norton, Bost. Proc. viii, 1S61, 155, 3. 9. 

 Black, sjender ; a white band around the fifth abdominal segment ; legs whit- 

 ish. Lengtli 0.34. Br. wings 0.58 inch. 



9 . Body long and slender, shining black, polished; antenna) rather 

 stout, not extending beyond base of abdomen, slightly ferruginous at 

 tip beneath, the fjur apical joints compressed at their base; channels 

 forming a sort of W behind ocelli; a sinus below lower ocellus and a 

 process between antenme; nasus ridged in middle, deeply notched, 

 with sharp angles before; the three apical joints of palpi, tegulaj, a 

 spot on basal plates and a band on fourth segment of abdomen white; 



