396 Mr. G. J. Arrow on Rutelid Coleoptera. 
species are unrecognizable from description owing to uncer- 
tainty as to the sex of the type, a point which can always be 
ascertained with very little trouble. These characters also 
form a more natural and useful basis of subdivision than 
those which have been employed. 
The proper allocation of the species between the genera 
Calloodes and Anoplognathus las vexed the minds of all who 
have dealt with these insects, partly owing to the rarity of the 
type species of the former genus, but also through oversight 
of the sexual differences, which has led to forms of very varied 
type being assigned to it by different authors. Hxamination 
of both sexes of Calloodes grayanus, White, shows it to 
possess, in common with its immediate allies, peculiarities in 
the form of clypeus and tibia which quite clearly separate them 
from all other forms. 
To set this matter at rest I shall for the first time formally 
characterize this genus, drawing up the diagnosis from White’s 
type (which is a female) and a male of the same species. 
CALLOODES. 
Regulariter ovatus, subdepressus. Clypeus utroque sexu brevis 
recte truncatus, margine reflexa; maris angulis minus rotundatis, 
margine magis reflexa. Prothoracis margo postica ante scutellum 
profunde excisa, ad emarginationis latera acute angulata. Tibi 
antic edentate, latere externo maris recto, femine leviter bi- 
sinuato. Processus mesosternalis longus, validus, fere rectus. 
The known species of this genus are grayanus, White, 
Rayneri, McLeay, and Atkinsoni, Waterhouse, all others 
assigned to it being entirely different in essential characters. 
Mr. Blackburn, who last attempted to define the genus, 
although believing he knew all the species, had evidently 
seen none of these three, for he finds the principal generic 
characteristic to be the possession of ‘‘ genuinely metallic” 
colours, whereas all are unmetallic green. 
] may note that C. grayanus has a cleft claw to the front 
tarsus in the female, while in the other species all claws are 
undivided in both sexes. 
The following new species of Anoplognathus may be 
described here :— 
Anoplognathus luridus, sp. 0. 
Breviter ovatus, brunneus; capite, prothorace, scutello, pygidio, 
femoribus tibiisque igneo-metallicis, corpore subtus metallico- 
nigro, tarsis nigro-viridibus; clypeo brevi, cum fronte paulo 
