94 
datis, posticis subdentiformibus ; elytra quam prothorax sat 
latiora, sat brevia, ad apicem inermia ; prosternum inter coxas 
anticas angustum, quam coxze minus elevatum ; mesosternum 
ante coxas intermedias sat longe productum; metasternum 
inter coxas intermedias haud productum ; abdominis segmen- 
tum basale quam sequentia 3 conjuncta vix brevius, antice 
sat augustatum ; pedes sat breves, femoribus (presertim 
posticis) crassis, posticis subtus prope apicem dente acuto 
armatis, tarsis brevibus (inter se equalibus, articulis basali- 
bus 3 inter se equalibus latis quam latioribus haud longioribus, 
unguiculis simplicibus. 
It will be seen from the preceding diagnosis that this genus in 
many respects resembles Duboulayza, but differs from it notably 
by its small excessively prominent eyes, and its front coxe 
rising considerably above the Jevel of the narrow intermediate 
space. Its eyes are not unlike those of Polyoptilus, though 
smaller, but it differs entirely from Polyoptilus in the structure 
of its tarsi. From Megamerus it differs, onter alia, by the small 
oval apical joint of its maxillary palpi, from Prionesthis and 
Cheiloxena by its strongly toothed hind femora, from Carpophagus, 
Diaphanops. Mecynodera, and Amettala by the extremely coarse 
granulation of its eyes, and from Psewdotoxotus by its short tarsi. 
In Chapuis’ arrangement of the Sayrides its place is in the 
“Groupe” Megamerites. There are four examples before me 
(three of them belonging to the S.A. Museum) among which I 
cannot detect any indication of sexual differences. Although I 
have not a specimen that I can damage sutfficinetly to make a 
proper examination of its /igula I can see that that organ is of 
the Sagrid as distinguished from the Criocerid character. 
C. tenebrivides, sp. nov. Nigra vel ferruginea, omnium exem- 
plorum palpis antennarum basi apiceque et abdomine rufe- 
scentibus; sat nitida; capite prothoraceque confertim 
subtilius subaspere punctulatis; antennis quam corporis 
dimidium vix longioribus, sat gracilibus articulis 3° 4° que 
inter se sat equalibus ; oculis sat parvis, transversis, grosse 
granulatis; prothorace subcordato (nonnullorum exem- 
plorum indeterminate inzquali); elytris sat fortiter vix 
crebre subseriatim punctulatis, lineis subelevatis 4 instruc- 
tis; corpore supra fere glabro, subtus pubescenti. Long., 
41.5; lat. 121. 
A short robust insect somewhat resembling in build certain 
small species of the Tenebrionid genus Menephilus, varying in 
colour from ferruginous to black. In one of the darkest speci- 
mens the shoulders are ferruginous. 
W.A. (Coolgardie). 
