Lamellicorn Beetles. Wie 
vatis brevioribus et fere zqualibus, lobo interno parvo, apice 
dentibus vel spinis nonnullus minutis. MJentum fere quadra- 
tum, anticé vero parum angustatum. Palpi labiales breves, 
in scapos duos insidentes; 3-articulati, articulo basali minuto, 
2do in medio intus angulato et setoso ; labii lobi sub scapos 
labiales distincti. Antenne 10-articulate breves, articulo 
basali parvo; clava articulis liberis. Pronotum in g retu- 
sum et subtuberculatum. TZ%bie antice breves late, 3-den- 
tate; posticee 4 in medio dentate. Calcaria elongata. 
Ungues simplices elongati. 
These characters are derived from a small species from Ma- 
dagascar, known in various collections under the name of Orph- 
nus Madagascariensis, but which M. Guérin has described in his 
* Tconographie” under that of O. nitidulus. It differs, however, 
in several respects from Orphnus as well as from Geobius, to which 
it is also nearly allied. 
The front of the pronotum differs in different specimens (as in 
most cornuted insects), in the extent of the impression in front ; 
in some are three small central tubercles in a row at the hind part 
of this impression, with two lateral ones, whilst in others they are 
more or less obliterated. I have also seen several specimens with 
the front of the thorax smooth and entire, as in the female, but 
with a small elevated tubercle in the middle of the clypeus, as 
though it were the rudiment of the horn of the male. 
Ecip1um. (Cat. Gall. sine descr.) 
(Pl. XII. fig. 5—8, and details.) 
Corpus oblongo-ovatum, thorace fere elytrorum latitudine, capite 
in utroque sexu inermi, pronoto vero in mare valde excavato, 
lateribus angulato-elevatis. Caput transversum, Clypeus 
margine antico lato, vix sinuato. Labrum exsertum, latum, 
angulis rotundatis ciliatis. J/andibule lateribus exsertis cor- 
nee bidentatee, dente apicale bifido, margine interno membrana 
ciliata instructo. Mazille lobo apicali lato, extus rotundato, 
intus in angulum acutum producto, margine supero ciliis latis 
corneis curvatis armato; lobo interno corneo subacuto, ante 
apicem supra seta spiniformi instructo. Pa/pi mediocres, 
filiformes, articulo ultimo elongato-ovato. Mentum ovatum, 
anticé angustius. Palpi labiales brevissimi, in scapos insi- 
dentes. Labium bilobum, lobis ultra basin palporum exsertis. 
Antenne 10-articulate, articulis clave liberis, ultimo minori. 
Thorax latior quam longus, lateribus rotundis, anticé quam 
posticé vix latior, in mare excavatus, in foemina vero canali 
