54 
178), as the first ramus is emitted from the basal end of the 
fourth joint (not, as I supposed, from the apex of the third 
joint). The peculiar antennal structure of each ramus (except, of 
course, the apical one) being connected with the base ef its joint is 
easily seen in the larger species, but in the much smaller one very 
careful examination is required to see which joint emits it, and 
it is not a character that one would look for unless one were 
expecting it,—indeed, it is only by observing it under a high 
power that I have been able, even now, to determine the point. 
EMENADIA. 
Below I furnish descriptions of six new species of this genus” 
preceded by a tabulation showing distinctive characters for all 
the species as yet described, except luterpennis, Macl. (the de- 
scription of which is insufficient for identification). It should 
be noted that [I have not seen specimens of tricolor, Gerst., 
lutecpennis, Champ. (? Macl.), macwlrcollis, Bohem., and cucullata, 
Macl., but that the descriptions of those species mention: 
characters which enable me to place them in the tabulation. 
A. Head nitid and (at any rate except in front) levigate or nearly so. 
B. Prothorax not carinate. 
C. Apex of prothoracic lobe not upturned. 
D. Apex of prothoracic lobe not emarginate. 
EK. Head black. 
F. Elytra closely punctulate. 
G. Basal 2 joints of hind tarsi 
much compressed ; hindangles 
of prothorax considerably 
divergent 
GG. Basal 2-joints of hind tarsi 
much more slender; hind 
angles of prothorax not or 
diversiceps, Blackb.. 
scarcely divergent 
FF. Elytra sparsely punctured 
EE. Head more or less red. 
F. Head entirely red 
FF. Head red in front, black behind. 
G. Prothorax and elytra sparsely 
punctured 
GG. Prothorax and elytra closely 
punctured 
FFF. Head black in front, ‘red behind 
DD. Apex of prothoracic lobe emarginate 
CC. Apex of prothoracic lobe up upturned 
BB. Prothorax penne a longitudinal median 
carina 
AA. The whole of the head conspicuously 
punctulate. 
B. The head black, and very closely punctured 
even behind 
BB. Head mostly red, with the puneturation 
notably less close behind 
sobrina, Waterh. 
difficilis, Blackb. 
tricolor, Gerst. 
[(? Macl.) 
lutezpennis, Champ. 
Championi, Blackb. 
capito, Blackb. 
maculicollis, Bohem. 
Nove-Hollandie, Gerst-- 
cucullata, Macl. 
punctulaticeps, Blackb. 
interioris, Blackb. 
=| 
