A new genus of the tooth-nosed snout weevils (Coleoptera: Rhynchitidae) from Philippines
Author
Legalov, A. A.
text
Far Eastern Entomologist
2018
2018-05-08
359
1
6
http://dx.doi.org/10.25221/fee.359.1
journal article
10.25221/fee.359.1
2713-2196
Genus
Luzonorhynchites
Legalov
,
gen. n.
Type
species:
Luzonorhynchites crassifemoratus
sp. n.
, here designated.
DIAGNOSIS. Body large. Mandibles externally dentate. Rostrum longer than pronotum. Eyes large, stark convex. Antennae long, inserted before middle (males)
and in basal third of rostrum, reaching middle of pronotum. Antennomeres 2 and 3
subequal. Antennal club loose. Pronotum transversely wrinkly-punctate. Elytra with distinct elytral striae, without scutellar striole. 9 striae merge with striae 10 before metacoxa. Metanepisternum quite wide. Ventrites 1 and 2 subequal in length. Ventrite
5 as long as ventrite 3. Procoxae with pit and hair bunches in males. Metafemora strongly thickened, lacking teeth. Pro- and mesotibiae almost straight. Metatibiae curved. Tarsomere 2 wide-conical. Tarsomere 3 wide-bilobed. Tarsal claws with long teeth.
COMPARISION. The new genus differs from all genera of the subtribe
Rhynchitina
in the strongly thickened metafemora in both sexes. The genera
Anisomerinus
Voss, 1933 from the subtribe
Temnocerina
of the tribe
Rhynchitini
, and the subgenera
Neodeporaus
Kano, 1928
and
Deporaus
s. str.
of the genus
Deporaus
Samouelle
,
1819 from the tribe
Deporaini
have the thickened metafemora in the males, but females are with simple metafemora. New genus differs from
Anisomerinus
in the elytra without scutellar striole, stark convex eyes, long antennal club, ventrite 1 subequal to ventrite 2, and metafemora lacking teeth. It is distinguish from
Neodeporaus
and
Deporaus
s. str.
in the propygidium not exposed, and short rostrum.
ETYMOLOGY. Generic name from the name of Luzon and “
Rhynchites
”.
COMPOSITION.
Type
species.