A review of the genus Dryocoetiops Schedl, with new species, new synonymy and a key to species (Coleoptera: Curculionidae: Scolytinae)
Author
Beaver, Roger A.
Author
Smith, Sarah M.
Author
Sanguansub, Sunisa
text
Zootaxa
2019
2019-12-19
4712
2
236
250
journal article
24546
10.11646/zootaxa.4712.2.4
cf61aa1d-1850-496a-92d4-2e5e5362ca24
1175-5326
3587059
6ECB5A18-2345-4259-BE51-7E77D7111BB7
Dryocoetiops inopinatus
(Schedl)
Dryocoetes inopinatus
Schedl 1955: 294
.
Dryocoetiops inopinatus
(Schedl)
:
Schedl 1964: 308
.
Taxonomy.
We have examined the
holotype
(NMW) from New
Guinea
. No further specimens have been recorded. Schedl’s collection (NMW) contains a second specimen from New
Guinea
labeled both as a
paratype
of
D. inopinatus
and as a
paratype
of
D. nitidus
! It
appears that Schedl first considered this specimen as part of the type series of
D. nitidus
which was described earlier, but later changed his mind and considered it to belong to
D. inopinatus
. However, because the original description of
D. nitidus
mentions only a single ‘Type’, the specimen has no validity as a
paratype
of
D. inopinatus
. In our opinion, the second specimen is a normal (although damaged) specimen of
D. nitidus
(Schedl)
, and it does not have the distinctive characters of
D. inopinatus
described below.
The species is very similar to
D. nitidus
but the eyes are larger and more coarsely faceted, and the sculpture of the elytra differs. On the declivity, interstriae 1–4 are irregularly biseriately punctured, not strictly uniseriate. Each puncture bears a long fine seta, so that
D. inopinatus
has a much more setose appearance than
D. nitidus
when viewed from above. Striae and interstriae 2–3 are distinctly outwardly curved on the declivity, converging again towards the apex, not almost straight as in other species of
Dryocoetiops
. The granules on the declivital interstriae are minute, far smaller than in
D. nitidus
.
Distribution.
New
Guinea
.
Biology.
Unknown.