Taxonomic revision of the Australian Notoxinae (Coleoptera: Anthicidae)
Author
Kejval, Zbyněk
Muzeum Chodska, Chodské náměstí 96, Domažlice CZ- 344 01, Czech Republic
anthicid@seznam.cz
text
Acta Entomologica Musei Nationalis Pragae
2013
suppl.
2013-11-15
53
1
98
journal article
9540
10.5281/zenodo.4272709
e0acc5ae-bfff-4f31-bf35-3580e085955a
ISSN0374-1036
4272709
37E0BCFC-F84A-4B2E-B554-0DC4AE42AD15
Mecynotarsus centralis
sp. nov.
(
Figs 38, 39
)
Type
locality.
Australia
,
Northern Territory
, Alice Springs.
Type material.
HOLOTYPE
:
♂
, ‘Alice Springs NT 7/68 C.Watts [p] //
SAMA
Database No. 25-029057 [p]’ (
SAMA
).
Description
(
holotype
, male). Body length 2.0 mm. Body, legs and antennae reddish.
Antero-lateral margins of frons simple or at most very slightly raised. Gular rugules of different sizes, anteriorly larger, ordered and fused as in
Fig. 139
. Clypeal granules minute but rather distinct. Setation of head generally rather hairy, mostly short and appressed on vertex, with some long erect setae postero-medially, slightly coarser and more raised ventro-laterally. Antennae rather long; antennomeres III–V about 1.7 times, X nearly as long as wide; setation hairy, longer and coarser basally, especially antennomere I with numerous bristly setae.
Pronotum globose, 1.5 times as long as wide, its lateral margins rather strongly, evenly convex in dorsal view, posterior collar very narrow but distinct. Pronotal horn rather robust and wide, triangular, its posterior angles distinct in dorsal view; horn margins armed with 3 and 4 lobules (two posterior lobules appears to be fused), apical lobule simple, widely rounded; horn crest distinct, rather short, coarse rugules on its margins fused with median rugules, several minute granules scattered posteriorly; submarginal rugules distinct, rather unevenly spaced. Setation silvery, scaly, appressed to subdecumbent, nearly indistinct on pronotal horn dorsally; scales on pronotal disc rather uniformly linear, densely spaced, rounded to subtruncate apically; antebasal paired setae absent medially and inconspicuous laterally, owing to presence of numerous additional tactile setae (especially antero-laterally).
Elytra 1.9 times as long as wide; omoplates and postbasal impression absent. Setation silvery, coarsely hairy to scaly, appressed, uniform; scales linear and bluntly pointed apically, quite distinctly spaced (surface clearly visible); erect tactile setae present, rather short and sparsely scattered, especially in basal half.
Male characters. Sternum VII slightly produced, rounded medially. Tergum VIII and aedeagus as in
Figs 38, 39
.
Differential diagnosis.
Mecynotarsus centralis
sp. nov.
can be recognized by the combination of the following external characters: pronotal horn rather wide, subtriangular; horn crest short, compact, distinctly raised and situated rather posteriorly, with few coarse rugules on margins and medially (partly fused); pronotum globose, evenly rounded laterally; elytra somewhat glossy, rather sparsely setose; appressed elytral scales coarsely hairy and bluntly pointed apically. It can be easily distinguished from all species by male characters, especially by the peculiar, more sclerotized and rounded apex of the median lobe and the evenly rounded tergum VIII.
Etymology.
The species name is a Latin adjective,
centralis
,
-is, -e
(= central); named in reference to the location of the
type
locality.
Distribution.
Australia
:
Northern Territory
.