Ten new species of the Stegana (Steganina) shirozui species group (Diptera, Drosophilidae) from ChinaAuthorChen, Xi-PengAuthorChen, Hong-WeitextZootaxa201233332437journal article10.5281/zenodo.215439f63d615a-0fba-4117-9c9e-d221666c92121175-5326215439Stegana
(
Steganina
)
protuberanssp. nov.
(
Figs 51–57
)
Diagnosis.
This species and
S. oligochaetasp. nov.
differ
from the
other species in having the
clypeus nearly
entirely black; dorsomedial
projection of gonopods with
serrated,
minute processes distally;
aedeagus with
scalelike, minute processes.
Description.
Male terminalia: Epandrium strongly protruded ventrally, not broadened on posterior margins, approximately twice as high as wide (
Fig. 51
). Cercus with sparse pubescence (
Fig. 51
). Surstylus with 8 prensisetae submedially (
Fig. 52
). Tenth sternite sclerotized and deeply separated basally, protruded apically (
Fig. 53
). Paramere with ca. 3 sensilla (
Figs 54, 55
). Aedeagus with scalelike, minute processes dorsally, slightly semilunar on opening in ventral view (
Figs 54, 55
). Dorsomedial projection of gonopods with serrated, minute processes distally (
Fig. 57
).
FIGURES 51–57.Stegana
(
Steganina
)
protuberanssp. nov.
, male terminalia: 51. Epandrium, cercus and surstylus; 52. surstylus; 53. 10th sternite; 54, 55. hypandrium, aedeagus and aedeagal apodeme; 56, 57. gonopods. Scale bars: 0.1 mm.
Measurements.
BL =
2.75 mm
in
holotype
(range in 3Ƥ
paratypes
:
2.22–2.80 mm
), ThL =
1.40 mm
(
1.70– 1.84 mm
), WL =
2.84 mm
(
3.55–3.95 mm
), WW =
1.24 mm
(
1.48–1.54 mm
), arb = 7/5 (7/5–9/5), avd = 0.82 (0.75–0.87), adf = 1.57 (1.50–1.50), flw = 1.71 (1.63–1.75), FW/HW = 0.48 (0.46–0.48), ch/o = 0.27 (0.21–0.28), prorb = 1.25 (1.25–1.26), rcorb = 0.75 (0.67–0.73), vb = 0.36 (0.40–0.47), dcl = 0.47 (0.46–0.49), presctl = damaged (0.54–0.59), sctl = 1.39 (1.40), sterno = 0.80 (0.83–1.00), orbito = 2.00 (1.80–2.00), dcp = 0.21 (0.18– 0.22), sctlp = 1.70 (1.69–2.00), C = 2.00 (1.98–2.23), 4c = 1.17 (1.00–1.07),
4v
= 1.57 (1.70–1.80),
5x
= 1.45 (1.20–1.38), ac = 11.67 (11.00–13.00), M = 0.53 (0.45–0.47), C3F = 0.57 (0.64–0.69).
Type
material.
Holotype
3 (
SCAU
, No.
120778
,
CHINA
: Mt. Wulian, Nanjian, Yunnan,
2200 m
,
25– 27.vii.2006
, HL Cao.
Paratypes
:
CHINA
: 3Ƥ (
SCAU
, Nos
120779
-81), same data as
holotype
.
Distribution.China
(Yunnan).
Etymology.
From the Latin word:
protuberans
(= protruding), referring to the gonopods with 1 projection dorsomedially.