286 REV. A. E. EATON ON RECENT EPHEMERID.E OR MAYFLIES. 



been also taken in France at Autun, by M''Lacblan ; some captured by bim near St. Moritz 

 (Grisons) on tbe 12th August, and in Val Bedretta, 17tb August, are unusually large. 

 In tbe Basses- Pyrenees it occurs near Laruns and Eaux Cbaudes at about 1800-2000 ft. 

 I am inclined now to consider E. qucesitor, Etn., MS., to be only a local form of this 

 species; but for fear of possible error I subjoin a description of tbe living insect. 



Variation ? 'iqnccs'dor]. Imago {living), d . — Eyes dark pitch-brown or intense sepia, 

 traversed by a deep umber-brown line edged with light yellowish. Notum rufo-piceous ; 

 tchen dried light pitch-brown. Dorsum of abdomen rich reddish purple-brown, bordered 

 with pitch-brown at the hind margins of the segments 2-9, between the ends of the 

 oblique lateral stripes, which themselves are of a red-purple tint and cut off triangular 

 spaces of a lighter red-purplish tint; pleune light yellow; spiracular spots black; 

 segment 10 is of the pale ground-colour. Venter anteriorly light burnt-umber brown ; 

 segments 8 and 9 rubiginose with dark joinings. Setae light sepia-brown v^ith dark join- 

 ings, becoming pitch-black at the roots. Eore femur dark pitch-brown ; tibia and tarsus 

 pitch-black. Hinder femora greenish grey or light olivaceous, brownish at the tips, 

 their trachese finely irrorated with black ; tibice tinged with light yellow-ochre ; tarsi 

 black. Wings vitreous, tinged faintly with greenish in the marginal and submarginal 

 areas before the middle, and also in the pterostigmatic space ; neuration pitch-black, 

 lighter at the wing-roots. 



$ (living). — Eyes dull olivaceous, mottled outside with pitch-brown or burnt-sienna, 

 and traversed by a line of the same colour. Notum pitch-brown. The triangular lateral 

 markings of the dorsal segments of the abdomen are dark burnt-carmine, and the lighter 

 parts are more rosy than in the other sex. Setie towards the roots deep warm sepia- 

 brown, becoming distally light warm sepia-grey with dark joinings. Length of body 11 ; 

 Aving, d 12-13, 2 15 ; setre, d im. 31-10, ? im. 25 mm. 



Hab. The Apennino Pistojese at the Limestre near Villa Margherita, San Marcello, 

 at the end of July, at an altitude of 2100 ft. The males, after p.m., were caught on the 

 wing whilst flying in a very peculiar manner about the tops of alder trees {Almis), about 

 20 ft. from the ground. Their movements resembled somewhat those of Rhizotrogtis d 

 in quest of a female — whence tbe name qucesitor. Earlier in the day specimens were 

 obtained by beating. 



EcDYURTJS FOKCiPTJLA, Kollar, MS. Plate XXIV. 4G c (penis). 



X BaMs fordpula , Kollar, ]MS., Pict., Hist. Nat. Nevropt. ii. Ephem. 169-170 note (18i3-5). 



Hejdayenia Xulpicola, ! Etn., Trans. Ent. Soc. London (1871) 148, pi. vi. 19 [penis dried; Carintbian 

 specimens only]. — H. fordpula, id., op. cit. (1871) 152 [undescribed] ; Meyer-Dijr, Mittb. scbw. ent. 

 Gcs. iv. 314 (1874) ; ! Rostock, Jabresb. d. Ver. f. Naturk. Zwickau, 1877, p. 91 (1878). 



Ecdijurvs italicus, ! Etn., MS., in tbe writing oi' PI. XXIV. 6 of tbe present work (1883).— £. Zelleri, 

 ! id. MS., p. 239 supra in bibliograpby of Epeorm alpicola (1885). 



SiiUmago [living). — Wings uniformly black-grey, slightly tinged with greenish in the 

 marginal area towards the base and at the tegulse. Eyes olive-green above, and rather 

 a light )-eddish brown by their lower orbits, with a red-brown line intervening between 

 these two colovu's. Eore leg pitch-brown ; hinder femora and tibia? brownish olive with 

 dull black tarsi. SetsE pitch-black. 



