Review of the genus Drylichus Heller (Insecta: Coleoptera: Dryopidae)
Author
Kodada, Ján
Author
Jäch, Manfred A.
Author
Jr, Čiampor Fedor
text
Zootaxa
2009
2157
43
58
journal article
10.5281/zenodo.188880
b564ee68-eb69-40fd-aba3-f5b77dba8842
1175-5326
188880
Drylichus monteithi
sp. nov.
(
Figs 41–43
)
Type
locality:
Aoupinié,
New Caledonia
.
Material examined:
Holotype
3 (
QMB
): "
NEW
CALEDONIA
Aoupinié
19 May 1984
G. Monteith & D. Cook / Q. M. BERLESATE No. 653 21.10S X 165. 18 E, Rainforest,
750 m
Litter".
Diagnosis:
Drylichus monteithi
and
D. hylesinoides
share 11-segmented antennae and strongly thickened male protibiae.
Drylichus monteithi
differs from
D. hylesinoides
in the following characters: smaller size (
3.21 mm
), puncture interstices on head and pronotum rugose, elytral striae distinct, aedeagus smaller, parameres pointed and more distinctly curved. Differences to
D. fidelitas
are discussed below.
Description:
Length (TL): 3
3.21 mm
; width (EW): 3
1.56 mm
. Head, pronotum, elytra and venter black; scape and pedicel dark brown; legs, anterior margin of clypeus, mouthparts and antennal club brownish. Macropunctures (associated with flat granules, mainly laterally) smaller than facets, irregularly arranged, shallow, separated by 1–3 puncture diameters, interstices rugose; head width: 3
0.82 mm
. Antenna 11-segmented.
Pronotal macropunctures smaller than facets (partly associated with small flat granules), shallow, denser and less distinct laterally, partly concealed by rugose interstices; interstices 1–3 times as wide as punctures; sides nearly subparallel in posterior half, strongly arcuate in anterior half; disc convex; pronotal lateral rim widest at posterior half, distinctly explanate, smooth; width (MW): 3
1.47 mm
; length (PL): 3 1.0 mm. Prosternal punctures distinctly smaller than facets, widely spaced near middle, interstices finely punctate, wide, lateral portion with punctures larger and denser, interstices smaller; surface with transverse wrinkles medially and with scattered flat granules in posterolateral half; prosternal process with mesal keel raised apically. Hypomeron posteriorly wider than profemur, irregularly punctate, with small granules on anterior half, interstices wrinkled; posterior portion with shallow groove for reception of femur. Mes- and metepisterna irregularly punctate, reticulate; metaventrite as long as posternal process, disc deeply impressed, finely punctate, sides elevated; discrimen absent. Scutellum 1.46 times as wide as long, subtriangular, sides rounded. Elytra moderately convex, obovate, widest in middle; posterior third and lateral margins strongly declivous, apices and long portion of lateral edges invisible in dorsal view; sides moderately arcuate anteriorly, strongly arcuate posteriorly; anterior edge finely irregularly crenulate; anterolateral angles short, produced; ratio of EL/EW: 1.36; disc with nine rows of moderately large punctures arranged in striae, intervals flat, punctate, punctures smaller than on pronotum, interstices shiny.
Midline lengths of ventrites 1–5: 0.43/0.19/0.12/0.12/
0.65 mm
; ventrites convex, lateral portion finely longitudinally wrinkled and irregularly densely punctate with scattered small granules, disc more sparsely punctate; ventrite 1 with shallow depression near anterolateral angles; intercoxal process sparsely punctate, sides moderately raised, apex truncate; apex of ventrite 5 truncate. Anterior process of male sternite 8 short, rounded. Aedeagus
1.52 mm
long; phallobase ca 1.9 times as long as parameres, subcylindrical, moderately bent (
Fig. 41
), first connecting membrane with two oblique longitudinal sclerotizations. Parameres widest basally, apical half inflected ventrad (
Fig. 42
); inner portion with longitudinal stripes near middle and with mosaic near base; apices pointed in lateral view. Penis feebly shorter than parameres, widest basally, more or less parallel-sided nearly to apex (
Fig 42
); apex subacute; ventral sac with fine mosaic, meshes larger and more oblique basally than apically; fibula distinctly developed.
Sexual dimorphism:
Female unknown.
Distribution:
So far known from the
type
locality only (
Fig. 48
).
Habitat:
Rainforest litter at
750 m
a.s.l.
Etymology:
Named for Geoff Monteith (Brisbane,
Australia
), excellent beetle collector and discoverer of two new
Drylichus
species.