124 Rey. A. E. Haton’s Monograph 
Some undescribed Australian species, which have the 
anterior wings more or less coloured along the costa, 
have been submitted to my inspection. I have seen, 
besides these, a Californian undescribed species, with the 
wings very distinctly marked with fuscous blotches along 
the costa, and with an unusual number of cross-veinlets 
in the wing. Their wings are figured in Pl. V. fig. 28, 
29; Pl als fie. 1. 
Baetis ferrugineus. 
Cloe (A) ferruginea, Walsh, 1862. 
Subimago. “ Ale fumatze; posteriores et anticarum 
postcostee pallidiores. Ala antica crassioribus nervorum 
et paucis alis, bases versus, fuscis, atque nervis trans- 
versalibus cum horum marginibus albido-pellucidis.” 
Imago, s.s. ¢. Corpus ferrugineum (rubiginosum). 
Ale vitrine ; anticee apud costas vix flavescentes, tribus 
prioribus nervorum longitudinalium flavescentibus, sed 
paucis alis fuscescentibus. Pedes pallide flavescentes, 
apicibus tibiarum et tarsorum, juncturis tarsorum, et 
proximo articulorum tarsi antici, fuscis. Abdomen supra 
rufescenti-brunneo irroratum, mterdum pene piceum ; 
subtus palliderubido-album. Sete forcepsque albicantes ; 
illarum intermedia brevissima.” (Walsh.) 
Long. corp. $ 6°5-9°5; set. 15-17; al. exp. 15-18 mm. 
Hab.—Rock Island, Illinois (Walsh) .* 
* Mr. Walsh thinks that the following species may be allied to B. fer- 
rugineus. 
Baetis albus. 
B. alba, Say, 1824; Palingenia alba, Hag. 1861. 
'@. Album; vertice fusco. Thorax vix flavescenti-brunneo tinctus ; 
‘‘prothorax quadratus, cretaceus ’”’ (Hag.). Alee albide, nervulis apud cos- 
tas obseuris. Pedes albi; antici breves, obscuri. 
Long. corp. 11, exp. al. 22 mm. (Hag.) 
Hab.—The North Red River (Hag.); Winnipeg River (Say). 
Ephoron leukon, Williamson, 1802. 
“Oculi nigri. Thorax fuscus. Ale, abdomen, et pedes albi. Ala 
patentes, reticulate ; sete due.” 
Long. corp. 12 mm. 
Hab.—The River Passaick, in the immediate vicinity of Belville; from 
the end of July to the middle of August. They begin to rise about forty 
minutes after sunset, moult about half a minute afterwards, and fly nearly 
as fast as dragon-flies. (Williamson.) 
I have reasons for supposing that Tipule are called dragon-flies in some 
parts of England; and if the Ephoron leukon flies as fast as these, its 
habits conform, thus far, to those of British species of Heptagenia. 
