2/3. 
British Species of May-flies of Anglers. 7 
6. dorsalis Curt. 
12 lines: ochreous ; superior wings obscurely clouded and freckled ; stigma 
pale brown, inferior margin fuscous, leaving three pale spots, the anal one 
minute, forming when the wings are closed three suborbicular spots down 
the back ; the first pair of spurs below the middle in both pair of legs. 
6°. longipennis Curt. 
13 to 14 lines: pale dirty ochre; antennz and legs fulvous, the former 
short and annulated ; superior wings long, narrow and lanceolate, fuscous 
with innumerable yellow dots; stigma long and fuscous, bearing three 
yellow spots; first pair of spurs on intermediate tibia considerably below 
the middle. 
B. Antenne long and slender. 
7. instabilis Curt.—maculatus Don. ? pl. 548, 2. 
Similar to Donovan’s figure; but as I believe Olivier's P. maculata is differ- 
ent, it became necessary to give another name to our insect. The inter- 
mediate tarsi are dilated, Ae fund. 
8. pellucidulus Curt. 
15 lines: head; thorax and abdomen blackish ; antennz very long, ochre- 
ous, spotted fuscous ; wings semitransparent, superior obscurely freckled 
with pale fuscous and achre, margin spotted with ochre from the stigma to 
the posterior angle,”and there are‘longer ochre spots on the inferior mar- 
gin; legs ochreous, intermediate tarsi dilated. Mea 3 
10. lanceolatus Curt. 
13 lines: wings fuscous, superior slightly hooked, clothed with shining 
ochreous pubescence, slightly freckled, the posterior margin slightly spotted ; 
intermediate tarsi but little dilatedve Z« 2 
9. angustipennis Curt. 
10 to 13 lines: antenne slightly serrated and annulated ; head, thorax and 
abdomen blackish ; wings fuscous, superior with an ochreous tint, alarge 
} + an ochreous oblong spot before, and another 
round one at the posterior angle ; intermediate tibiae and tarsi compressed 
and dilated in the female ; legs ochreous, darker at the base. 
9>. fulvipes Curt. ek Tock fol Vit, G1 y 
13 lines: black; antennz annulated with fulyous, neck clothed with gri- 
seous hair, edges of abdominal segments white ; wings pale black, superior 
obscurely freckled with ochre ; legs fulvous, thighs fuscous. 
Gen. 753. Leprocerus Lea. 
A. Superior wings with two furcate apical cells, 
11. cinereus Curt. 
12 lines: antenne very long, black annulated with white, clothed with 
griseous hairs ; wings fuscous, superior clothed with grey pubescence ; costa 
slightly ochreous, as well as some indistinct marks, a small portion of the 
base of the inferior wings pale ochreous ; tibize and tarsi of the same colour. 
B. Superior wings with a line of transverse nervures forming the apical cells. 
12. ochraceus Curt. Brit. Ent. v. 2. fol. 57. 
13. testaceus Curt. q 
8 lines: reddish ochre, very pubescent ; antenne long; eyes black ; cilia 
fuscous ; inferior wings transparent, subfuscous at their tips. 
