EEY. A. E. EATON ON EECENT EPHEMEKID^ OE MATELIES. 297 



neuration browu ; cross-veiulcts sparse. Hiud wings seemingly absent. Length of body 

 5, wing 6, setfe 6 mm. 



Hub. Brazil ("Yienua Mns.). [After Pictet.] Pictet did not know exactly to which 

 of his genera this species should rightly be referred. His figure attributes to the meso- 

 thoracic wings a shape which would lead one to suspect that the absence of hind wings 

 in his two specimens was due to Psociclce or other cabinet pests. Otherwise, his state- 

 ment that cross-veinlets exist only in the anterior portion of the mesothoracic wing 

 wonld render it probable that the sjiecies might be related in some degree to one of the 

 genera illustrated in Plate XV. of the present volume, — supposing him to have used a 

 lens of low power in his examination of the specimens, and their setse to have exceeded 

 his estimate in length. 



Thraltlus (?) viTRiPENNis, Elanchard. 



Ephemera {doe) vitripennis, Blanch., Gay, Hist, fisic. y pcilitic. de Chile, vi. 107, Atl. Nevropt. ii. 3 

 (1851). 



Cloeon vltrlpenne, Etu., Trans. Eut. Soc. Loudon (1871) 107. 



Imago. — Body of a light brownish olive ; head flavo-rufous above. Mesothoracic 

 wings vitreous. Legs light testaceous; femora banded with fuscous in the middle and at 

 the tips. Setie Avhitish, annulated with In-own. Hind wings absent. 



Hah. Chili. [After Blanchard.] Probably a Thruuhis, of which the hind wings had 

 been destroyed by Psociche. 



SiPHLURUS QUEBECENSi.?, Provaucher. 



I Ba'elisl canadensis, Provaucher, Natural. Canad. viii. 2G7 (187G) ; id. En. Ent. d. Canad. ii. fasc. i. 

 83 (1877). 



Siphlurus quebecensis, Hag. MS., op.cit. ii. fasc. i. [corrections] 82- (1877). 



Brune ; le vertex et le disque du prothorax ferrugineux. Abdomen avec la base des 

 segments testacee, surtout sur les cotes. Pattes pales, cuisses brunes, jointures 

 des articles des tarses noires. Ailes hyalines, le bord costale brun a I'extremite et 

 quelque peu ferrugineux a la base ; nervures transversales brunes. Soies tres tongues, 

 pales, a jointures brunes. 6 Sous-parfait : ailes un peu obscures, couleur du corps plus 

 sombre. Long. -40 pouce ; soies 1'20. [After Provanclier.] 



Heptagenia quebecensis, Provaucher. 



X Cloe quebecensis, Provaucher, Natural. Cauad. viii. 2G7 (187G) ; id.. En. Eut. d. Cauad. ii. fasc. i. 84 

 (1877). 

 Heptayenia quebecensis. Hag. 'Sl'&.,op. cit. ii. fasc. i. [corrections] 82' (1877). 



Brun varie de roussatre. Thorax poli, d'un brun roussatre, les cotes avec les sutures 

 jaunatres. Ailes. . . . parfaitement hyalines, les nervures transversales interrompues, 

 peu apparentes. Pattes brun pale, les jointures des articles des tarses anterieurs noires. 

 Abdomen brun, blanchatre sous le ventre et a la base des segments sur les cotes. Soies 

 caudales. . . . blanchPitres, a jointures brunes. Long. "40 pouce, soies '05. 



Hub. Quebec, common. [After Provaucher.] 



SECOND SERIES. — ZOOLOGl', VOL. III. 40 



