306 EEV. A. E. EATON ON EECENT EPHEMEEID.E OE MAYFLIES. 



lastly, a pair of clots placed one on each side of the ganglionic tract nearly in the middle 

 of each of these segments : in segment 8 the corresponding markings are ill defined. 

 The pleura of segments 8 and 9 are acute behind. Femora yellowish instead of greenish, 

 their colour approaching dull yellowish ochre. Eggs light yellowish. Length of body 

 8-9; wing 9-11 ; setfe, d im. 15 & 14, subim. 7, ? im. 12 & 12-5, subim. 7 mm. 



Hab. N. of England and S. of Scotland. Locally common by shallow and swift parts 

 of the river Eden in Cumloerland during June, near the villages of Langwathby and 

 Salkeld. Its occurrence in Scotland is vouched for by a single subimago in Mr. King's 

 collection. The 6 imago, while in the net, can be distinguished from E. Ignita by the 

 yellowish tint of the pterostigmatic portion of the fore wing. 



Ephemerella hispanica, sp. nov. 



Subimago {dried), $ . — AVings light blackish grey, w'ith opaque neuration. Abdomen 

 discoloured, but opaque : the terminal margins of dorsal segments 3-8 or 9 black in the 

 middle for some distance transversely, and then pale towards the sides ; the dorsum is 

 flanked on each side by a single series of longitudinal black stripes placed at the bases 

 of the pale pleura ; these stripes are visible ventrally, and together with a median 

 longitudinal black line, cause the venter (the joinings of which are pale) to a2)pear tri- 

 lineate. Seta3 dark grey, with black joinings. Sutures of the mesonotum black; on 

 each side of this segment, a little above the spiracle and in front of the tegulte, is a small 

 rounded black spot. Femur olive-grey ; hinder tibiae, in some lights, In-owner than the 

 femora ; tarsi and fore tibiye in opaque view blackish. 



Imago (dried), d . — Notum bright raw-umber-brown : the rounded black spots in front 

 of the tegulse are each subjacent to a black longitudinal line along the margin of the 

 mesonotum : the thoracic pleura are raw-umber varied with dull light ochre, and their 

 sutures in the neighbourhood of the hinder coxte are black or pitch-black. Femora in 

 opaque view light yellowish umber or corneous, becoming translucent in transmitted 

 light; fore tibia dark j)itch-brown, excepting just at the knee, which is concolorous 

 with the femvir; fore tarsus bistre-grey; hinder tibiaj almost concolorous with the 

 femora, each with a blackish-grey stain externally just below the knee; hinder tarsi 

 bistre-brown. Wings vitreous ; neuration in souie postures colourless, but in other 

 postures the edge of the fore costa in its basal half appears blackish, and some of the 

 stronger of the longitudinal nervures assume an olive-grey or browuisJi-amber tint, the 

 bulla of the subcosta and the great cross-vein of the fore wing remaining colourless. 

 Lengtli of wing, d im. and $ subim. 9 mm. 



Mab. Spain; San Ildefonso, Segovia; captured in July by Messrs. Ed. Pictet and 

 Meyer-Dur in the year 1859 (2 examples). By the courtesy of Mr. H. Albarda and 

 Prof. E. Frey-Gessuer, I have lately examined all that remains of the Spanish Uphe- 

 meridce collected by the deceased Swiss entomologists above mentioned. A single ? 

 subimago of this species is in Mr. Albarda's collection, and part of a d imago in Ed. 

 Pictet's Mus. ; but the ravages of Anthreniis preclude full description of the insect from 

 these materials. 



From the same locality, in the same collection as the above species, are specimens of 



