Description of a new species of Anthrenus Geoffroy 1762, with a key to species from Nepal
Author
Háva, Jiří
Author
Kadej, Marcin
text
Zootaxa
2015
3920
3
488
492
journal article
10.11646/zootaxa.3920.3.8
1e6f4c18-1045-4932-8a38-0cc94c551aa6
1175-5326
236619
7AD26546-948C-42A5-A49C-50C484F1E9EE
Anthrenus
(
Helocerus
)
cechovskyi
sp. nov.
(
Figs. 1–11
)
Type
locality.
Nepal
, Rasuwa District.
Material examined.
Holotype
(male), deposited in
NMPC
:
Nepal
centr., Bagmati Zone, Rasuwa Distr., Langtang N.P., Dhunche-Bharkhu-Syabru,
2000–2800 m
,
6–13.v.1996
, on flowers, P. Čechovský lgt. To this, a red, printed label with the following text was added: “
HOLOTYPE
[ALLOTYPE/
PARATYPE
respectively]
Anthrenus
(
Helocerus
)
cechovskyi
sp. n.
Háva & Kadej det. 2014”. Allotype: the same data as
holotype
(
NMPC
);
paratypes
: 24 exx. the same data as
holotype
(2 exx.,
DIBEC
; 22 exx.,
JHAC
).
Etymology.
The epithet is a patronym honoring Peter Čechovský (
Czech Republic
), the collector of the
type
series.
Diagnosis.
The new species closely resembles
Anthrenus
(
Helocerus
)
fuscus
Olivier, 1789
,
Anthrenus
(
H.
)
minutus
Erichson, 1846
,
A.
(
Florilinus
)
museorum
(L., 1761) (cosmopolitan),
A.
(
F
.)
nepalensis
Kadej & Háva, 2012
(
Nepal
)
,
A.
(
F.
)
zhantievi
Háva & Kadej, 2006 (
India
)
and
A.
(
Nathrenus
)
schawalleri
Háva & Kadej, 2006 (
China
)
. However, it can be easily be distinguished from these species by the following unique combination of characters:
1) Antennae of
A. cechovskyi
sp.
nov.
5-segmented (in females six), whereas the antennae of
A
.
nepalensis
and
A. museorum
are 8-segmented and those of
A. schawalleri
are 11-segmented.
2) Abdominal ventrites I–V of
A. cechovskyi
sp. nov.
have dark–brown and light-brown scales covering lateral margins, while in
A. nepalensis
the dark–brown scales cover only the posterior margin, in
A. museorum
the dark–brown scales cover posterior margins of ventrites II–V and the middle section of ventrite V. In
A. zhantievi
ventrites I–V covered with gray scales only, and in
A. schawalleri
ventrites I–V covered with yellowish scales only. In
A. fuscus
and
A. minutus
, abdominal ventrites I–V covered with whitish scales only.
3) Male genitalia with apices of parameres erect in
A. cechovskyi
sp. nov.
, whereas in
A. fuscus
and
A. minutus
they are curved inward.
Description.
Body
: convex, slightly rounded laterally; measurements: body length from anterior margin of pronotum to apex of elytron
2.1–2.9 mm
, median pronotal length
0.4–0.6 mm
, maximum width of pronotum 1.00–
1.25 mm
, maximum width of elytron
1.20–1.55 mm
, median length of visible abdominal ventrites I–V 1.0–
1.3 mm
, maximum width of visible abdominal ventrites I–V
1.15–1.55 mm
. Body surface with triangular or subtriangular scales (
Figs. 1–5
; dorsal patterns incomplete in 1–3].
Head
: visible when viewed dorsally; eyes large, convex, oval. Median ocellus present. Frons and clypeus covered with mixed white, light-brown, dark–brown scales. Clypeus light-brown. Labrum light-brown, with short tan setae on dorsal surface. Galea and lacinia as in
Fig. 11
, lacinia sclerotized, apex only slightly curved. Antennae light–brown, with five antennomeres in male (
Fig. 6
) and six antennomeres in female (
Fig. 7
); antennal club 1-segmented in male and two thirds length of entire antenna (much longer than the flagellum), whereas antennal club 2-segmented in female and nearly half length of entire antenna (subequal to the flagellum). Antennae completely fill the antennal fossae, ratio of lengths of antennal fossa to lateral margin of pronotum 0.7:1.0.
Thorax
: Dorsal surface dark–brown, sparsely punctured, covered by scales (
Figs. 1–3
). Pronotum covered by dark–brown, light–brown, and white scales; lateral declivity with white scales along margin and medially; disc with dark brown scales with only few white scales mixed on central part of pronotum. Lateral margins of pronotum dilated above antennal fossa, visible from above. Pronotal disc raised relative to lateral margins, shallow pit present along posterior margin. Scutellum small and poorly marked. Elytron covered by mixed white, light–brown and dark brown scales, white and light brown scales forming irregular bands of variable width and shape.
Legs
: Brown, femora darker than tibia and tarsi and covered with mixed white and light-brown scales dorsally, tibial spines absent, claws slightly curved.
Abdomen
: Ventral surface of the body whitish, abdominal ventrites I–V covered with white, light–brown and dark–brown scales, dark–brown scales especially prominent along lateral margins (
Figs. 4–5
). Abdominal ventrite I without distinct postcoxal lines, sulcus without scales (
Figs. 4–5
). Pygidium brown, transverse basally, carina absent (
Fig. 10
).
Male genitalia
: Parameres (
Fig. 9
) shallowly u-shaped, covered with short setae along lateral and medial margins, longer setae present apically and along medial margins of parameres. Penis (median lobe) with distal end curved dorsally (lateral view). Ninth abdominal segment with apex distinctly indented medially, lateral margins rounded (
Fig. 8
). Setae present dorsally and laterally, but only anteriorly.
Distribution.
Nepal
.