HYMENOPTERA. 
553 
larger genera separately^ in accordance with the characters of the 
two sexes. 
Holmgren (lehneumonologia Sueciea^ tom. i.) adopts Wes- 
maePs division of the true Ichneumonides into 4 groups, Ichn. 
oxypygi, amhlypygi, platyuriy and pneustici, of the characters 
of which he gives a table (/. c. p. 1). His present volume is 
devoted to the first of tliese groups, which includes 4 genera 
represented in Sweden. These are : — 
1. Chnsmodes (Wesm.) with 3 species (pp. 2-7) ; 2. E.veplianes (Wesm.) 
with 1 species (pp, 7-9) ; 3. Ichneumon (Linn.) with 124 species (pp. 9-206); 
and 4. Iloplismemis (Grav.) with 2 species (pp. 200-210). Of the genus 
Ichneumon several new species are described. 
Brischhe (Schr. kon, phys.-okon. Ges. 7AI Kdnigsh. v. pp. 177-208) gives a 
list of the rimj)larife of tlie Province of Prussia, and a series of additions and 
conections to the list of Ichneumonides in his former papers. Several new 
species and varieties of known species are described, and the particulars of 
the insects from which many of the specimens were bred are given. 
Gouley, Sichel, and Guerin-Meneville have made some observations on the 
exclusion of Metopius de7itatus from species of Bomhyx. Guerin states that 
he has reared this species from Bomhyx cynthia. Bull. Soc. Ent. Fr. 1866, 
p. xxvi. 
Sichel describes a peculiar variety of Bimpla examinator (Fab.) bred from 
Chelonia cervini. Ann, Soc. Ent. Fr. 4® s^r. tome iv. p. 687. 
Cresson supplements his description of Cryptvs rohustus, and indicates 
some of its variations. Proc, Ent. Soc. Phil. iv. p. 265. 
Taschenberg (Naturg. wirbell. Thiere, pp. 260-261) discusses the charac- 
ters of Hemiteles melanarxus (Grav.). 
~New genera : — 
Linoceras, g. n., Taschenberg, Zeitschr. f. ges. Naturw. 1866, p. 105. Al- 
lied to Cryptus] antennae in 2 cylindrical, with the apex obtuse ; first abdo- 
minal segment much elongated. Sp. Cryptus mao'ohatus, seductorius, and 
melanoleucus (Grav .) . 
Brachycentrus, g. n,, Taschenberg, 1. c. p. 106. Antennae as in preceding, 
but first abdominal segment very short. Type B. pimplarius = Crxjptus hra-^ 
chycentrus (Grav.). 
g. n., Taschenberg, 1. c. p. 137. Allied to Hemiteles \ abdo- 
minal peduncle linear, longitudinally fissured or keeled, with the spiracles 
before its middle. Sp. Hemiteles luteolator (Grav.) ; O. anomalum, sp. n., 
Tasch. /. c. p. 137. 
Ceratosoma, g. n., Cresson, Proc. Ent. Soc. Phil. vol. iv. p. 281. Allied 
to Exetastes and Banchus) wings broader, neuration as in Banchus) legs 
shorter and stouter, claws with a small tooth near the tip ; abdomen in 2 
subsessile, fusiform, acute at apex. Sp. C. apicalis, sp. n.. Cress. 1. c. p. 282, 
from the Colorado Territory; and C.fasciatay sp. n.. Cress. /. c. p. 283, from 
the Middle and Eastern States. 
Eiphosoma, g. n., Cresson, 1. c, p. 62. Allied to Cremastus ; abdomen long. 
