The species of Pandeleteius Schoenherr of coastal Chile and Peru (Coleoptera, Curculionidae)
Author
Howden, Anne T.
text
Zootaxa
2008
1773
55
62
journal article
10.5281/zenodo.182167
7b5790f3-723d-4e32-8012-e558984bba75
1175-5326
182167
Pandeleteius peruvianus
Voss
(
Fig. 20
)
Pandeleteius peruvianus
Voss 1954
: 230
.
Diagnosis
(based on Voss’s description). Length
3.5–4.7 mm
. Scales predominantly gray, head and thorax medially with wide brown vitta, elytra beside suture with brown spots, apical third with narrow, C-shaped oblique band; brown color in part somewhat “copperglazed”. Setae very short, curved. Frons twice as wide as length of eyes, eyes slightly convex. Antennal club twice as long as wide, as long as segments 2 to 7 of funicle. Thorax almost as long as wide, greatest width anteriorly of middle, sides moderately strongly rounded; basal and apical constrictions cylindrical, of equal width; disc finely and not densely punctured among the scales. Elytral declivity in one sex in profile slightly concave and apex more attenuate; sutural interval at summit of declivity with setae longer, scales paler; intervals much wider than striae. Fore femur much more enlarged than the others, easily half as enlarged as width of thorax. Tibiae straight, fore tibia slightly curved inwards at apex and drawn out in a spine, inner edge sharply dentate.
Remarks.
Voss compared
P. peruvianus
with
P. variegatus
, the only
Pandeleteius
species known from coastal
Peru
at that time, but apparently did not see a specimen of
P. variegatus
(“...
P. variegatus
MIGHT possess an even wider head.., ...the peculiar curved elytral apices in one sex MAY be missing in this species...”,
Voss 1954
: 231). Because his knowledge of
P. v a r i e g a t u s
was limited to the illustration and description, his comment on its wider head is understandable (see
P. variegatus
).
The characteristics of
P. peruvianus
that suggest that its description may apply to
baccharis
are: 1) elytral declivity slightly concave, apex more attenuate “in one sex”, 2) the longer setae on the sutural interval at the summit of the declivity with longer setae and paler scales IN BOTH SEXES, and 3) the brown color in part somewhat “copperglazed”. Descriptors that do not seem to apply to
P. baccharis
are: 1) thorax with sides moderately strongly rounded, and 2) fore tibia drawn out in a spine.
Because of the Second World War, the publication of Voss’s (1954) work on the Curculilonidae of
Peru
was delayed for years after it was written and after the
types
were destroyed. Thus,
P. baccharis
Kuschel
was published earlier and its name has priority over
peruvianus
and
distinctus
, whether or not these are synonymous with
baccharis
. Specimens of
Pandeleteius
from southwestern
Peru
are needed to determine the status of
P. peruvianus
. The
type
series was also “destroyed in the war” (Voss, in litt.,
22 May 1963
:
Weidner 1976
:129); the label dates are “Südperu: Hac.[Hacienda?] (
28.3.1936
, Hamb. Südperu-Expedition)”; Viscas- Tal, “in 1000 Höhe (
5.4.1936
, Hamb. Südperu-Expedition)”.