Molecular and morphological analyses disclose the existence of three species of Dolichopoda (Orthoptera: Rhaphidophoridae) in the Calabria region (Italy)
Author
Di Russo, Claudio
Author
Allegrucci, Giuliana
Author
Rampini, Mauro
text
Journal of Natural History
2023
2023-03-30
57
5 - 8
372
394
http://dx.doi.org/10.1080/00222933.2023.2186277
journal article
10.1080/00222933.2023.2186277
de172f67-df51-4222-8e40-9db98d821740
1464-5262
7799738
AB64936E-EAEF-4730-A517-4F0C11226A94
Dolichopoda apollinea
Di Russo and Rampini
sp. nov.
(
Figure 8
)
Type material
Holotype
J:
Calabria
,
Pollino Massif
,
Cassano
allo
Ionio
,
Sant
̍
Angelo cave
complex,
260 m
asl
.,
14 December 2021
,
Di Russo
and
Rampini
leg. (
MZUR
).
Figure 5.
Dolichopoda palpata
(male). (a) X tergum, dorsal view; (b) subgenital plate, lateral view; (c) epiphallus, dorsal view; (d) epiphallus, lateral view; (e) plica dorsalis.
Dolichopoda calabra
(male). (f) X tergum, dorsal view; (g) subgenital plate, lateral view; (h) plica dorsalis; (i) epiphallus, dorsal view; (l) epiphallus, lateral view. The arrows highlight differences in the main diagnostic characters as described in the text. Scale bars: 1 mm.
Figure 6.
Dolichopoda palpata
(female). (a) Subgenital plate; (b) ovipositor lateral view.
Dolichopoda calabra
(female). (c) Subgenital plate; (d) ovipositor. Scale bars: 1 mm.
Other material examined
Same locality, date and collector as the
holotype
: 4J,
3♀
, 1 nymph.
Calabria
,
Pollino Massif
,
Cerchiara
Calabra, Serra
del
Gufo cave
,
15.06
.2019 F
.
Larocca
leg
. 2 nymphs; Pollino Massif, S.
Lorenzo Bellizzi
,
Conoide cave
,
04.07
.2019 F
.
Larocca
leg
. 1J;
Pollino Massif
, Francavilla Marittima,
Caprio cave
,
20.10
.2019 F
.
Larocca
leg
.
1♀
, 2 nymphs.
Type locality
The Sant̍ Angelo cave complex is a group of 16 more or less developed caves located at the base of the karst hill named ′il muraglione̍. Two of these, situated at
260 m
asl, are more than
1000 m
long (
Larocca 2003
).
Figure 7.
Correlation between body and hind femur lengths in a subsample of Calabrian
Dolichopoda
. Squares and circles refer to
D. palpata
and
D. calabra
, respectively, whereas triangles indicate
D. apollinea
sp. nov.
Measurements are in mm.
Etymology
The name of the new taxon refers to the ancient appellation of the Pollino Massif as Apollo Mountain.
Diagnosis
The new taxon is different from the other Calabrian species in the smaller size of the males, the more squared lobes of the tenth tergum that are strongly haired, and the median process of the epiphallus characterised by a prominent carina extending from the base for more than half its length. On the contrary, the females appear quite similar to
D. palpata
and
D. calabra
in the shape of the subgenital plate and the denticulation of the inner valvae of the ovipositor.
Description
Male.
Relatively small in size; not uniform in body colour, thorax and abdomen brownish dorsally while paler ventrally. Legs long, uniformly yellowish, with the posterior edge darker. Femora unarmed. Fore tibia armed with 5–6 spines on sides of the lower edge, 3/5 spines on the upper edge. Mid tibia with 5/7 short spines on both sides of the upper edge and 3/4 spines on the lower edge. The hind tibia is longer, with 19/21 spines of varying length on both sides of the upper edge and 3 homogeneous spines on the lower external edge.
Figure 8.
Dolichopoda apollinea
sp. nov.
Male habitus.
Tenth tergum with two almost squared lateral lobes, strongly haired (
Figure 9
(a)). The lobes are separated by a large median depression holding two pronounced conical tubercles. The subgenital plate is globular and deeply incised in the middle; lateral lobes are triangular with two prominent cylindrical styli (
Figures 9
(b,c)). The median process of the epiphallus is almost slender, with a triangular basis. In the middle, a prominent carina occurs from the basis to almost the second half of the total length. In lateral view it is uniformly curved. Narrow basal process with the anterior lobes more developed than the posterior ones (
Figures 9
(d,e)). Plica dorsalis membrane semicircular in shape.
Length (mm): body 15.00; pronotum 4.00; fore femur 15.00; mid femur 15.00; hind femur 24.00; fore tibia 17.00; mid tibia 18.00; hind tibia 30.00; hind tarsus 11.00; 1st article of hind tarsus 6.00.
Female.
Relatively larger than male (
16–24 mm
). Sternites VII, VIII and IX are well developed, showing a prominent posterior edge. Subgenital plate sclerotised, globular and semicircular (
Figure 9
(f)). Ovipositor uniformly curved (
12 mm
) with the apex of the external valvae strongly acuminated and curved upward. The inferior valvae, with the base almost round, have 17–20 denticles (
Figure 9
(g)).