59 
E. diversiceps, sp. nov. Nigra, cyaneo-iridescens, antennarum 
basi et oris membris picescentibus, segmentis ventralibus 
postice rufescentibus ; nitida, capite antice sat crebre vix 
aspere postice subtilissime sparsissime punctulato; pro- 
thorace elytrisque (horum puncturis sat elongatis, illius 
basin versus minus crebris magis grossis) crebre sat fortiter 
punctulatis ; elytrorum disco longitudinaliter impresso ; tar- 
sorum posticorum articulis basalibus 2 compressis. 
Var. Prothorace elytrisque plus minusve rufescentibus. 
Long., 52 1. ; lat., 2 1. 
The blue iridescence of this species is probably characteristic. 
The puncturation of the head and elytra is not unlike that of 
E. sobrina, Waterh. ; that of the prothorax is notably coarser 
and less close near the base. The prothorax resembles in shape 
that of #. sobrina, Waterh., except in having its hind angles 
distinctly divergent. An example in the S.A. Museum has the 
disc of the elytra longitudinally reddish, and one in my collection 
has the elytra nearly entirely (and the prothorax entirely) 
reddish ; both have distinct traces of bluish iridescence. 
S.W. Australia. 
£. sobrina, Waterh. I have seen only two specimens that I 
can refer to this species, which considerably resembles in colouring 
some varieties of 4. diversiceps, Blackb., butis of notably narrower 
form, with the hind angles of its prothorax even more decidedly 
non-divergent, and the basal two joints of the hind tarsi evidently 
more cylindric. The two examples before me are both females, 
but the tarsal character is certainly not sexual, as the females of 
E. diversiceps have the basal two joints quite strongly compressed. 
The prothorax (especially behind) is much more closely, and 
less coarsely, punctulate than than of diversiceps. 
£. difficilis, sp. nov. Nigra, prothorace abdomine tibiis tarsisque 
(nonnullorum exemplorum) et elytris antennis mandibulis 
palpisque (plus minusve) testaceis; nitida; capite antice 
crebre fortius postice sparsissime subtilissime punctulato ; 
prothorace supra quali minus crebre punctulato lobo. 
mediano ad apicem rotundato, angulis posticis divergen- 
tibus; elytris in disco longitudinaliter impressis, antice 
sparsius (apicem versus crebre) punctulatis, puncturis sub- 
elongatis. Long., 3—441.; lat., 1—141. 
The following characters in combination distinguish this 
species from its previously described congeners :—Head black, its 
hind part scarcely distinctly punctured, median lobe of prothorax 
rounded and not upturned and not carinate, elytra more or less 
testaceous and with comparatively sparse isolated (except close 
to the apex) punctures. It is variable to the last degree in 
colour and markings ; in a long series, however, of both sexes I 
