EMBIDJ3 — EPHEMERIDiE. 
Ins, 251 
Enihia being indigenous in Europe (c/. Zool. Rec. xiv. Ins. p. 203), 
McLachlan states that there can be no doubt as to perhaps more than 
one species being actually native in that continent. Pet. Nouv. ii. 
p. 193. 
PsOCIDiE. 
Burgess, E. The Anatomy of the Head, and the Structure of the 
Maxilla, in the Psocidce. P. Bost. Soc. xix. pp. 291-206, pi. viii. 
A very valuable contribution to the anatomy of these insects. 
Rostock, M. Die Ephemeriden und Psociden SachsenS. (See Epheme- 
ridoB.) 
Descriptions of 32 species in tabular form (EUpsocus cyanopSy given 
as sp. n., was noticed in Zool. Rec. xiii. Ins. p. 204). 
SpAngberg, Jacob. Psocina Sueciae et Fenniae. (Efv. Ak. Forh. 1878, 
No. 2, pp. 5-29, pis. i. & ii. 
A monograph of 18 described species. The plates are occupied by 
details of the neuration both generic and specific. ^ 
Ephemerid^. 
JoLY, ;6 mile. Nouvelles observations sur le genr& Prosopistoma. Pet. 
Nouv. ii. p. 265. 
Concerns the discovery of P. punctifrons in the Rhone. Cf. Bull. Soc. 
Ent. Fr. (5) viii. p. lix. 
. Les premiers 4tats du genre Oligoneuria sont connus. Bull. Soc. 
Nimes, vi. with plate. 
A sketch of what has hitherto been written on the subject ; the 
figures represent (in outline) the larvae of O. garumnica, Joly. On the 
same subject, cf. Albert Muller, MT. schw. ent. Ges. pp. 384-386 (0. rhe- 
nanay with which Joly’s species is identical). 
Rostock, M. Die Ephemeriden und Psociden Sachsens. JB. Ver. 
Zwickau, 1877 (1878), pp. 76-100. 
Contains descriptions, in a tabular form, of 48 species, mostly occurring 
in the Kingdom of Saxony. (Review by Schiller, SB. Ges. Isis, 1878, 
p. 178). 
PotamantMs luteus again found in England ; McLachlan, Ent. M. M. 
XV. p. 92. 
New genus and species : — 
ArnetropuSy g. n., Albarda, Ent. M. M. xv. p. 129. Allied to Siphlurus 
and Beptagenia ; type, A./ragilis, sp. n., id. ibid., Holland. 
Heptagenia ccerulans, p. 89, and j^ava, p. 90, Rostock, 1. c. Saxony. 
Centroptilum tenellum, Albarda, Ent. M. M. xv. p. 128, Holland. 
Isonychia ferruginea, id. ibid., Holland and France. 
