298 THE ENTOMOLOGIST. 
Albin, Donovan, and some of the earlier English authors figured 
species which, although fairly good, are hardly capable of 
identification with certainty ; so also with the figures of Réeaumur 
and DeGeer. Coquebert figured I. Coqueberti (fusorius) ; there 
are good coloured figures of J. primatorius (grossorius) and 
I. flavatorius in Panzer; this latter species is also figured by 
Ratzeburg, as well as I. duwmeticola (piniperde), I. pisorius, and 
I. nigritarius; I. dimidiatus is beautifully figured (coloured) by 
Westwood in Stephens’ ‘Ill.-Mandib.’ We now have excellent 
figures of twelve British species belonging to this genus 
in Vollenhoven’s ‘Pinacographia. ‘The identification of an 
Ichnewmon would thus appear as difficult as it may be interesting, 
but our table will at least serve to determine a specimen as one 
of two or three species, and then the respective descriptions of 
Gravenhorst, Wesmael, Holmgren, or other authority should be 
consulted. It must, however, be remembered that colour and 
size are the most liable to variation; sculpture is generally 
constant. Marshall’s Catalogue includes 144 species, and in the 
‘Entomologist’s Annual’ for 1874, I. vulneratorius, Zett., is 
added, where see the synonymy as copied from Holmgren; but 
Wesmael’s I. hematonotus is a distinct species (Ent. Tid. i. 78). 
This is included in the table, and all Marshall’s species, except his 
numbers 60, 61, 114,119, and 136. Of these J. variegatorius (60) 
and I. leucostigmus (61) were included by Wesmael in a new genus 
Hepiopelmus; this is followed by Tischbein, and reluctantly by 
Vollenhoven; but since it appears desirable, such will be done 
here. J. cerinthius (114) is an Amblyteles, and will appear in that 
genus. J. deceptor (119) is retained on the strength of Graven- 
horst’s var. 5 alone, who says, “‘Marem unicum, circa Netley 
captum Hope mihi misit”; it was not in Marshall’s 1870 
Catalogue, and is, we think rightly, omitted here. The male of 
I. perileucus, Gr., is Amblyteles funereus (in ‘Ent. Soc. Cat.,’ 
p- 24, 1. 8, for male read female), and the female I. perilewcus 
(var. 1), Gr., is A. fossorius ; Marshall gives J. perilewcus (36) in 
the genus Ichnewmon, with a reference to Stephens, but he 
describes both male and female; therefore, to save more confusion, 
the species is not included here. There are several species 
already casting their shadows on the British fauna, but they 
cannot now be referred to. 
A study of a series of bred specimens in many species of 
