of the Orthopterous Genus Cloéon. 147 
great extent among individuals of the same kind, whether sub- 
imagos or Imagos, “and it is not much affected by drying. The 
interneural veinlets on the apical margin of the fore wings are 
disposed in pairs in the species with round. tipped hind wings, 
but singly in that with sharp-tipped wings. 
C. Rhodani, Pictet. 
In the f the turban varies precisely as does that of C. diptera. 
The lines on the thorax also are si- 
milar to those in that imsect in 
highly coloured specimens. The 
anal sete are sometimes entirely , 
white, generally white, with fuscous ~ 
rings at the joinings and the middle Hind wing, maguitied, 
of the joints, seldom fuscous throughout, and become transpa- 
rent, through tenuity, towards their tips. The imago appears, 
in favourable weather, throughout the year. A branchial plate 
of the pupa is figured, I believe, in M. Pictet’s work on the 
Ephemeride. 
C. pumilum, Burmeister. 
Subimago. <&. Turban yellow. Spots and lines of imago 
all indicated. Legs yellowish white; tarsi, tibie, and tips of 
femora tinged with fuscous. Thorax yellowish fawn-colour, 
Abdomen pale yellowish grey. Wings and Rin 2 eS 
sete unicolorous, fuscous. Penis black. as m Sere 
Imago. Turban of male yellow, changing Sy 
to red when dry. Thorax shiny yellowish HL 
brown. Legs yellowish, pale; knees and 74 ™"& magnitied. 
tarsi darker in the female, but paler in the male. Abdomen in 
the male whitish yellow, the four apical segments brown: in the 
female dull yellow brown, with the tips of the dorsal arches darker. 
Setz in both sexes white, either annulated with fuscous or not. 
The hind margins are more delicate, much smaller and narrower 
than those of C. Rhodani, as will be seen on referring to the 
figures. 
C. bioculatum, L. 
Turban of male cornelian-red, seldom yellow. The imago 
varies but little in colour. It appears from April to November, 
if not throughout the year. The figure of 
the hind wing of C. bioculatum, Pict. (Hist. 
Nat. des Névrop.), differs entirely from the 
above. His is more like that of Stephens’s 
bioculatum (i.e. C. pumilum, Burmeister), to 
which insect C. bioculatum, L., when dry, is very Banlaty ae size 
excepted. 
Hind wing, magnified. 
idles 
