Mr. C. O. Waterhouse on new Lucanoid Coleoptera. 387 
Thave not met with the imago in the open, but from the 
larvee, which occurred in the beginning of April last year, in 
Boserup Skov and Jegersborg Dyrehave, a great number 
both of males and females were produced between the middle 
of April and the beginning of May. 
XLV.—Notice of a new Genus and Species of Lucanoid 
Coleoptera. By CHARLES O. WATERHOUSE. 
AUXICERUS, n. gen. 
General characters of Scortézus ; very depressed. The an- 
terior cox only a little separated ; the prosternum not pro- 
duced into a process posteriorly. Mesosternum sloping down 
in front. The four posterior tibiz straight and not armed 
with a spime on the outside. Hyes not divided by the 
canthus. 
&. Mandibles a little longer than the head, horizontal, 
acuminate, and slightly curved. Head large and broader 
than long, the anterior angles produced into an acute process. 
Clypeal margin emarginate. Basal joint of the antenne 
as long as the head (measured in the middle), flexuous; the 
second to seventh joints slender, about twice as long as broad ; 
the first and second joints of the club with the lamella occu- 
pying only the apical half of the joint, so that the lamella are 
widely separated from each other ; the lamella is only spongy 
on the side which 1s towards the apex ; the apical joint is con- 
pressed, reniform, and spongy, except the base, which is 
shining, ‘Thorax transverse, the posterior angles obliquely 
emarginate. Mentum strongly transverse, rounded at the 
sides, widely emarginate at the apex. 
Auxicerus platyceps, sp. n. 
3. Parallelus, sat depressus, opacus, pallide squamosus; mandibulis 
porrectis, apicem versus acuminatis, basi denticulatis ; capite lato, 
medio planato, angulis anticis supra obtuse carinatis, longe acute 
productis, divergentibus ; thorace capite vix latiori, medio con- 
yexo, canaliculato, lateribus piceis, angulis anticis prominulis, 
angulis posticis oblique emarginatis ; elytris thorace paulo angus- 
tioribus, parallelis, ad apicem arcuatim angustatis, regione sutn- 
rali depresso, crebre, eyidenter punctato, macula humerali, altera 
laterali ante apicem obscure piceis, macula sub humero, fascia 
pone medium undulata, plagaque apicali squamarum pallidarum 
