486 
NEUROPriiliA. , 
Termopsis angusHooliU. Small examples from Nevada noticed as var. 
nevadensis \ Rep. Geol. Survey of Territories for 1873, p. 671. 
T. occidentis is now considered as certainly distinct, but the imago is still 
unknown ; id. 1. c. p. 672. 
Termes tenuis. Melliss, in his work on St. Helena, pp. 171-176, enters 
at length into the enormous destruction occasioned in the island by this 
insect. It is said to have been introduced in 1840 in a captured slave- 
ship, and damage estimated at £60,000 has been caused by it. 
An impression of a wing from the coal formation of Belgium is doubt- 
fully referred by De Borre as representing a fossil species of this 
family. CR. Ent. Belg. xviii. p. xli. pi. v. fig. 3. 
Peklidas. 
Acroneuria abnormis. Varieties, &c., described ; Hagen, Rep. Geol. 
Survey of Territories, 1873, p. 674. 
Pteronarcys regularise Nevada, hadiue Wyoming, Utah, and Colorado, 
id. 1. c. p. 573, spp. nn. 
Dictyopteryx signata, id. 1. c. p. 675, Colorado ; D. olgce, McLachlan, 
Fedtschenko’s Turkestan (Neurop.), p. 49, pi. iv. fig. 10, Turkestan: 
spp. nn. 
Isogenus elongatuSe sp. n., Hagen, 1. c. p. 576, Colorado and Utah. 
Perla sobria and ebria, id. 1. c. p. 577, Colorado ; F. cocandica, p. 50, 
pi. iv. fig. 11, Kokand, cadaverosoe fig. 12, immersa, fig. 13, p. 51, Turke- 
stan, McLachlan, 1. c. ; P. tinctipennis . p. 171, niponensis and lugubris, 
p. 172, Japan, id. Tr. E. Soc. 1875 : spp. nn. 
Isopteryx curta, sp. n., id. Fedtschenko’s Turkestan, p. 63, Kokand. 
Tmniopteryx maracandicae sp. n., id. 1. c. p. 54, pi. iv. fig. 16, Turkestan. 
Nemoura ornata, sp. u., id. 1. c.. p. 66, pi. iv. fig. 14, Kokand. 
Ephemerid^. 
JoLY, N. & E. Nouvelles Recherches tendant a etablir que le pretendu 
Crustace ddcrit par Latreille sous le nom de Prosopistoma est un 
veritable insecte de la tribu des Ephemerines. Rev. Sci. Nat. ii., 
separate, pp. 1-16, pi. 
Treats especially upon the form and functions of five pairs of false gills 
hidden under the carapace. The paper concludes by a translation of 
the Recorder’s article on Oniscigaster walcejieldi, and his figures are 
copied on the plate. 
Ephemera decora^ guttulatae and natata redescribed, and synonymy 
rectified; Hagen, Report Geolog. Survey of Territories for 1873, pp. 
678-580. 
Heptagenia pudica redescribed ; id. 1. c. p. 581, 
Dipteromimus, g. n., McLachlan, Tr. E. Soc. 1875, p. 170. Probably 
allied io Siphlurus] remarkable for its tipuliform anterior wings, the 
posterior minute and very narrow; eyes of $ probably simple ; two tails. 
Type, D. tipidiformiSe sp. n., id. ibid. Japan. 
