EPHEMEUID-E. CLOiiON. 67 



Ba. vermis. Curtis, Phil. Mag. 1834. — Steph. Nomen. 2d edit. Appendix. 



" Pale ferruginous : head and thorax piceous above, with an ochreous dot on 

 each side the collar, and several beneath the wings; filaments twice as long 

 as the insect, pale and dotted; legs dirty ochre; wings (hyaline) with the 

 costa tinged." — Curtis, I. c. 



Taken in May and June, near London. 



Sp. 17. autumnalis. Pallide brunnea, thoracis lateribus ochraceis, setis longis- 

 simis pallidis, pedibus luridis. (Exp. 'Alar. 6 — 7 lin. ; Long. corp. 2 — 2$ lin. ; 

 J. set. 5| lin.) 



Ba. autumnalis. Curtis, Phil. Mag. 1834. — Steph. Nomen. 2d edit. Appendix. 



" Pale castaneows-brown ; margin of eyes and sides of thorax ochreous ; fila- 

 ments thrice as long as the insect, whitish; legs pale lurid; wings with the 

 anterior margin slightly tinged. Pseudimago more ochreous." — Curtis, I. c. 



Also found near London, in July. 



Sp. 18. cingulata. Gracilis,fusca, abdominis segmentorummarginibus pedibusque 

 posterioribus luridis, alis hyalinis. (Exp. Alar. 7 — 8 lin. ; Long. corp. 3i line ; 

 1. set. 3|lin.) 



Ba. cingulata. Steph. Catal. 306. No. 3401. 



Slender, fuscous, shining ; abdomen with the margins of the segments livid ; 

 filaments pale livid, scarcely so long as the insect, and faintly dotted with 

 brown ; anterior legs fuscescent, four posterior ones livid ; wings hyaline, 

 rather narrow. 



Taken near Hertford, in June. 



Gexus VI.— CLOEON, Leaeh. 



Head small, somewhat transverse, hemispherical : eyes moderate, remote, 

 lateral : thorax ovate, convex, robust : wings two, elongate, rounded at the 

 apex, with numerous longitudinal nervures, and a few transverse ones ; 

 posterior pair wanting : abdomen rather long, attenuated to the apex, which 



- is furnished with two, more or less elongated, filaments : legs slender, 

 anterior pair frequently elongated, their femora occasionally thickened: 

 claws unequal. 



-j-Sp. 19. nigra. Nigra, pedibus pallidioribus, alis nigricantibus, posticis minimis 



Eph. nigra. Linne. — Ba. nigra. Steph. Catal. 306. No. 3400. 



Size of a gnat : black ; legs palish ; wings blackish, posterior ones very 



small ; all with the hinder margin somewhat fringed. 

 A pseudimago, but of what species I am not aware. 



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