Systematic revision of the American taxa belonging to the genera Alloblackburneus Bordat, 2009, and Blackburneus Schmidt, 1913, with description of seven new species (Coleoptera: Scarabaeidae: Aphodiinae)
Author
Dellacasa, Marco
Author
Dellacasa, Giovanni
Author
Gordon, Robert D.
text
Insecta Mundi
2011
2011-12-16
2011
204
1
52
journal article
10.5281/zenodo.10090539
1942-1354
10090539
Alloblackburneusacutulus
Bordat, 2009
(
Fig. 1-5
)
Alloblackburneusacutulus
Bordat, 2009: 126
.
Typelocality
.
Matopos N. P. (
20
o
33’S-
28
o
30’E
),
Zimbabwe
.
Type repository.
Zoologisches Museum, Humboldt Universität.
Berlin
(
paratype
examined).
Redescription.
Length
2.5-3.5 mm
; oblong, convex, moderately shiny, elytra very shortly pubescent. Reddish brown; epistome, pronotal disc, lateral margins of scutellum, elytral suture and sometimes also elytral disc, darkened; legs reddish brown with tarsi somewhat paler; antennal club pale testaceous. Headwith epistome gibbous, simply, rather denselyregularly andmoderately coarsely punctured; clypeus distinctly sinuate at middle, round at sides, thinly bordered, edge glabrous, somewhat reflexed anteriorly, lateral margins almost straight; genae obtusely round, glabrous, feebly protruding from the eyes; frontal suture finely impressed, not tuberculate; front evenly, almost coarsely, not closely punctured. Pronotum transverse, convex, simply, rather densely regularly andmoderately coarsely punctured; punctationsomewhat denser on sides; lateral margins subparallel toward the base, thinly bordered, edge glabrous; hind angles obliquely subtruncate; base feebly bisinuate, distinctly bordered, edge sometimes with few short hairs at scutellum level. Scutellum narrow with lateral margins arcuate, sparsely coarsely punctured. Elytra oval elongate, subdenticulate at shoulder; epiplerural carina shortly bristled toward shoulder; striae rather fine, feebly crenulate, wider toward apex; interstriae strongly convex, almost roof-shaped, finely serially punctured laterally; each puncture shortly recumbently pubescent. Hind tibiae superior apical spur shorter than first tarsal segment; latter as long as following three combined. Male: pronotum somewhat more transverse, less convex and somewhat more sparsely punctured; apical spur of foretibiae stouter and abruptly downward bent; metasternal plate distinctly excavate; aedeagus
Fig. 4-5
. Female: pronotum somewhat narrowed anteriorly, somewhat more convex, and somewhat more densely punctured; apical spur of fore tibiae rather slender and moderately curved downward; metasternal plate almost flat.
Material examined.
ZIMBABWE
:
Matopos N. P.,
20
o
33’S-
28
o
30’E
,
28.XI-01.XII.1993
, leg. M. Uhlig (lux) (
1 male
,
paratype
,
DCGI
).
Distribution.
Zimbabwe
.
Bionomics.
Specimens of the
type
series were collected at light in November, December, and March.