34 TflE CAIÏADIAK ENTOMOLOCJISf. 



3. Banchus canadensis.—'^ 9. Ferruginous, dark on head and thorax | 

 face except central stripe, front except two black spots behind antennae, broad 

 posterior orbits, line on collar, two lines on mesothorax dilated anteriorly^ 

 tegulae, line beneath, scutellum, spot on postscutellum, transverse subangular 

 band on metathorax, spot on each side, elongate spot on pleura, four anterior 

 coxa3 beneath, trochanters, spot on posterior coxae behind, four anterior 

 femora in front, their tibiae and tarsij basal half of posterior tibise, base of 

 their tarsi, and apical margin of abdominal segments, broadest on second 

 and third, yellow ; antennae blackish, pale at base beneath ; central dark 

 stripe of mesothorax, sometimes black; scutellum with a short acute tubercle 

 in %, scarcely visible in $ ; wings yellowish-hyaline, nervures brown, stigma 

 and costa pale honey-yellow ; tips of posterior tibiae sometimes blackish ; 

 abdomen polished, compressed at apex, which is truncate in % , pointed in 9 , 

 Length 4^-5 lines. 



Sab. — Ottawa (Billings) ; London (Saunders). Coll. Am. Ent. Soc. 



4. Arotes AMOENUS. — 9. Black, shining; face, orbits, broad behind, 

 mouth, broad annulus on antennae, large mark on each side of prothorax, 

 margins of mesothoracic lobes, tegulae, spot beneath, scutellums, large trilobed 

 mark at tip of metathorax, a round spot on the flanks, large mark on each 

 side of pleura, indented with black anteriorly, four anterior legs, spot on 

 posterior coxae above and beneath, their trochanters, tips of their femora, 

 basal third or half of their tibiae, their tarsi except claws, and a narrow apical 

 fascia on all the abdominal segments, pale yellow or yellowish-white ; wings 

 hyaline, the extreme apex fuscous, nervures black, second recurrent nervure 

 not uniting with the transverse cubital nervure ; four anterior femora black 

 behind ; first abdominal segment with a prominent sub-basal tooth beneath ; 

 venter yellowish, the long acute ventral valve blackish ; ovipositor longer 

 than body, rufous, sheaths black. Length 6^-7 J lines. 'S, of a brighter 

 yellow ; antennae longer than body, yellow, only its basal half above, black; 

 posterior coxae yellow with a black line above and within, their femora black 

 above, except tips, sometimes only the extreme base of their tibiae are yellow* 

 îsh ; the abdominal fasciae are broader, and the basal segment has a central 

 yellow stripe more or less abreviated behind, and sometimes reduced to a 

 Bub-basal spot. Length 5j-6i lines. 



Ifab. — London, (Saunders) ; Grimsby, (Pettit). Coll. Am. Ent. Soc. 

 This is a handsome and conspicuous species. 



5. Arotes formosus. — % . Differs from amœnus by the yellowish mark- 

 ings being much paler and less developed ; the antennae are black at extreme 

 apex both above and beneath, the sides of the thorax are almost entirely 

 black ; the superior wings have a fuscous spot at extreme tip, and the second 



