Taxonomic changes within Imatidiini and Hybosispini (Coleoptera: Chrysomelidae: Cassidinae)
Author
Sekerka, Lukáš
text
Acta Entomologica Musei Nationalis Pragae
2017
Acta. Ent. Mus. Natl. Pragae
2017-12-31
57
2
351
380
http://dx.doi.org/10.1515/aemnp-2017-0081
journal article
10.1515/aemnp-2017-0081
0374-1036
5316262
29090109-53D4-48D3-B926-6DE5D3F79ADE
Cephaloleia apertura
(
Staines, 2013
)
comb. nov.
(
Fig. 1
)
Aslamidium
(
Neoaslamidium
)
apertura
Staines, 2013: 286
(original description incl. black-and-white photograph).
Type
locality.
Venezuela
,
Aragua State
, Rancho Grande Biological Station,
1550 m
a.s.l.
Type material examined.
HOLOTYPE
: glued, ‘
VENEZUELA
:
Aragua
| Rancho Grande Biol.Stn.,
1550 m
|
10°21’38”N
,
67°41’38”W
|
12-14 MAY1998
; J. Ashe,R.Brooks,P.Hanley | VEN1ABH98 029 ex: flight intercept trap [w, p, cb] || [bar code] | SM0128228 | KUNHM-ENT [w, p, cb] ||
HOLOTYPE
|
Aslamidium
|
(
Neoaslamidium
)
|
apertura
Staines
| des. C. L.
Staines 2013
[r, p, cb]’ (
SEMC
).
Remarks.
STAINES (2013)
described this species based on a single specimen and placed it in the subgenus
Neoaslamidium
Borowiec, 1998
of the genus
Aslamidium
Borowiec, 1984
based on antennomere I being longer than antennomere II.
The genus
Aslamidium
is characteristized by pronotum with distinctly explanate margin with conspicuous latero-basal impression on each side. The subgenus
Neoaslamidium
differs in pronotum being much narrower than the base of elytra and at least basally parallel-sided while the nominotypical subgenus has pronotum as broad as base of elytra and semicircular (
SEKERKA 2014
).
I studied the
holotype
of
A. apertura
(
Fig. 1
) and find it does not conform to the characteristics of the genus
Aslamidium
. It is true that species of
Aslamidium
have antennomere I longer than II but this is not a unique diagnostic character for the genus as many other taxa among
Imatidiini
have this character. Moreover
A. apertura
also has antennomere III very long, somewhat shorter than antennomere I while all species of
Aslamidium
have antennomere I shorter than III. The present species has subquadratic pronotum with lateral margins very narrowly widened only in anterior half and lateral slopes of the disc without any impression; elytra with narrowly explanate margin and smooth outer edge. Based on above mentioned characters I find the species belongs to the genus
Cephaloleia
and I hereby transfer
A. apertura
to that genus.
Cephaloleia apertura
has body size
4.3 mm
, densely punctate vertex, head brown infuscate with black, black pronotum with anterior 1/5 and lateral widened margin yellow, and elytra yellow with black diffused pattern forming 16 more or less isolated spots (
Fig. 1
). Such pattern is not present in any other described species as all similarly sized species have elytra either with only two to eight spots or vittae.
Cephaloleia apertura
also has antennomere I with short apical projection on lower side and is distinctly longer than III and the latter is twice as long as II while small species of
Cephaloleia
with yellow-black dorsum has antennomere I shorter than III and not expanded on apex.
The coordinates on the locality label do not accurately represent the collection site as they are at elevation of
930 m
a.s.l. and situated in the
Carabobo State
. Therefore I do not mention them in the
type
locality.
Distribution.
Venezuela
:
Aragua
(
STAINES 2013
).