A taxonomic revision of the genus Baldorhynchus (Di Marco & Osella, 2002) stat. n. (Coleoptera, Curculionidae, Entiminae)
Author
Bello, Cesare
Author
Osella, Giuseppe
Author
Baviera, Cosimo
text
Zootaxa
2016
2016-01-27
4070
1
1
101
journal article
31380
10.11646/zootaxa.4070.1.1
058a8983-7310-4a2a-ade4-66ed90de8a06
1175-5326
1054428
75CBEFC1-FFC8-4D35-857B-55DD2596BC8C
Baldorhynchus baldensis
(
Czwalina, 1875
)
(
Figures 1, 1a, 1b, 1c, 1d, 1e, 1f
,
40
, 1’, 1’a, 1’b, 1’c, 1’d, 1’e, 1’f, 60, 92)
Troglorhynchus baldensis
Czwalina, 1875
: 121
;
Bertolini, 1872
(!): 167;
Stierlin, 1883
: 581
;
Bertolini, 1893
: 229
;
Halbherr, 1896
: 15
;
Bertolini 1899a
: 108
;
Bertolini, 1899b
: 89
;
Daniel, 1903
: 260
;
Holdhaus, 1903
: 257
;
Ganglbauer 1906
: 35
;
Solari A. & Solari F., 1907
: 471
;
Reitter, 1912
: 1
-23;
Luigioni, 1929
: 1
-1159;
Porta, 1932
: 56
;
Lona, 1937
: 1431
;
Holdhaus, 1954
: 161
;
Solari, 1955
: 78
; Osella, 1966: 389-390; Osella, 1968: 141-156; Osella, 1983: 95-123;
Abbazzi & Osella, 1992
: 301
; Abbazzi
et all.
, 1994: 21; Caoduro
et all.
, 1994:74.
Otiorhynchus
(
Troglorhynchus
)
baldensis
:
Magnano, 1998
: 71
;
Monguzzi, 1999
: 233
-234.
Otiorhynchus
(
Baldorhynchus
)
baldensis
:
Di Marco & Osella, 2002
: 258
;
Colonnelli, 2003
: 39
;
Abbazzi & Maggini, 2009
: 53
; Magnano & Alonso Zarazaga, 2013: 309.
Type
locality.
“Monte Baldo,
Bocca
di Navene
,
1425 m
, Trento” (
Fig. 142
).
Diagnosis.
A
Baldorhynchus
of medium size belonging to the
B. baldensis
group with elytra elongate-oval. This species is recognisable by the short funicle and leg, the flattened disc of pronotum (sub-hexagonal with subparallel lateral margins). Punctation of pronotum small, irregularly arranged, sparse and shallow. Punctation of the elytra small, misaligned and shallow. Total length:
4.10–4.60 mm
. Elytra with length/width ratio 1.85–2.00. Pronotum length 1.00–
1.15 mm
with length/width ratio 1.16–1.25.
Redescription.
As we have established a neotype, we provide a redescription of the species. The neotype specimen, here designated, is labelled as follows: [label with genitalia] // “ / ♂" [white, printed] // “M.[on]te Baldo, Bocca di Navene,
2-VI-1966
, Osella” [white, handwritten] // “
Troglorhynchus baldensis
Czw.
, det. Osella, 1978” [white, handwritten] // “disegnato edeago + spic.[ulum] gastrale” [white, handwritten] // “Plesiotypus” [red, handwritten] // “
Baldorhynchus baldensis
Czwalina, 1875
, Neotype, det. Bellò & Osella, 2015" [red, printed] (MSNV).
Neotype
.
Male. Total length:
4.55 mm
. Scape length: 1.00 mm; funicle length:
1.10 mm
. Scape length/funicle length ratio: 0.91. Funicle with club ratios: 12: 6: 4: 5: 4: 5: 4: 28 (club). Vestigial eyes present, barely visible. Vertex width/mesorostrum width: ratio 1.83. Pronotum ratio: 1.16 (length:
1.10 mm
, width:
0.95 mm
). Elytra ratio: 1.92 (length:
2.40 mm
, width:
1.25 mm
. Rostrum short and partially covered by dense yellowish pubescence; twice as long as the head; dorsum convex; mesorostrum slightly gibbous with short central keel; a dozen epistomal setae thin, curved, semi-erect. Antenna slender and little elongate with long, semi-erect, thin setae, scape little clavate and as robust as funicle; fusiform club with first segment flat, long as last six funicle segments, at least twice wider than funicle. Head smooth on disc, short, conical. Supraorbital area not covered by yellowish pubescence. Vertex width / mesorostrum width: ratio 1.83. Vestigial eyes visible, strongly partially covered by yellowish pubescence. Pronotum (length:
1.10 mm
, width:
0.95 mm
, ratio: 1.16, little sub-exagonal, not gibbous, little sinuate at the base, wider in the middle; short golden erect seta inserted in center of hole; punctation small, isodiametric but of different widths, irregularly arranged, sparse and shallow; smooth little central area on disc. Scutellum not visible. Elytra convex, elongate-oval with flat suture (length:
2.40 mm
, width:
1.25 mm
, ratio: 1.92), strongly rounded on sides, wider on the middle and ogive-shaped at declivity. Punctation of striae small, misaligned, shallow but isodiametric; interspaces between strial punctation not regular and less wide than punctures. Interstriae wider than striae, flat, smooth with sparse, long and erect setae. Legs robust and short, with rather long golden setae. Femora clubbed and edentate. Tibiae with five/six tooth-like tubercles on inner edge; protibia slightly curved in side view, mesotibia and metatibia straight. Penis lengthened, sub-parallel seen from above and regularly and moderately curved in lateral view; tegmen sclerotized; small genital armature; penis as in
Fig.
1f
.
Material.
The
material mentioned in
Osella
(1983) was examined.
Other
material
: “M[on]
te Baldo
,
Süd-Tirol
// ex
Origin. Samlg. J.
Breit,
Wien
” [red, printed] (
NHMB
): two males and two females; “M[on]
te Baldo
,
Süd-Tirol
//
Sammlung Stöcklein
” [white, printed] (
NHMB
): one male; “M[on]
te Baldo
//
Sammlung Stöcklein
” [white, hand-written] (
NHMB
): one female; "
Monte Baldo
,
Grotta
Val Parol
,
1600 m
,
6 VII 1984
,
leg.
Caoduro
" (
GOS
): one female; “
Trentino Alto Adige
, M [onte]
Altissimo di Nago
(TN),
1300 m
,
11.IV.2011
,
leg.
A. Benelli
” (
GOS
): one male topotype; “
Trentino Alto Adige
, M [on]te
Baldo
(TN), S.
Valentino
,
1250 m
,
22.
VI.2012
,
leg.
Aless. Paladini
” (APA): one male; "I,
Veneto
(VR),
Ferrara
m.[on]
te Baldo
,
Novezzina
,
Fontana della Teja
, vaglio bosco
Fagus
sp., ricerche WBA 2012
,
leg.
Caoduro
” (
GOS
,
CBE
): one male and one female; "M[onte]
Baldo
(VR),
Prada
,
900 m
,
30.IV.
[19]87,
R. Monguzzi
” (
RMO
), one female (abdomen); "
Veneto
(VR),
Prada
,
910 m
,
San Zeno di Montagna
,
26 XII 2014
,
leg.
Aless. Paladini
” (APA), one female; "
Veneto
(VR),
Prada
,
910 m
,
San Zeno di Montagna
,
5 I 2015
,
leg.
Aless. Paladini
” (
CBE
), one male; “M.[onte]
Baldo
” (
MTSN
), one male ex coll.
Bertolini. Genitalia
of seven specimens (four males and three females) were examined.
Distribution.
See Fig.128. Italian endemic. Only known from Mount Baldo and Lessini.
Ecology/Phenology.
See Osella (1966, 1968). We collected the species while sifting in deep moist litter in a beech forest near the fountain of Teja.
Reproduction
. Amphigonic.
Systematic notes.
Seidlitz (1894)
wrote that after the death of Czwalina, his collection was forwarded to the Zoological Museum in Königsberg (now Kaliningrad, Russia). This Museum unfortunately was destroyed during World War II and all collections were relocated or lost (
Solodovnikov 2001
). Despite various attempts, the type has not been found. It is not in the collection of the Naturhistorisches Museum in Wien, Austria (Harald Schillammer, pers. comm.), nor in the Museum of Natural History in Berlin, Germany (Johannes Frisch, pers. comm.) and also not traceable in the collections of other museums controlled by us (MSNM, MSNV, MTSN, NHMB, TLMF). The original description (
Czwalina 1875
) allows the unambiguous recognition the species, and according to the rules art. 75 of the International Code (ICZN, 1999) we here select and designate a neotype.