The Phortica Sensu Stricto (Insecta: Diptera: Drosophilidae) From Malaysia
Author
Chen, Hong-Wei
Author
Toda, Masanori J.
Author
Lakim, Maklarin B.
Author
Mohamed, Maryati B.
text
Raffles Bulletin of Zoology
2007
2007-02-28
55
1
23
41
journal article
10.5281/zenodo.5333042
2345-7600
5333042
Phortica
(
Phortica
)
zeta
Chen & Toda
,
new species
(
Figs. 30–35
)
Diagnosis.
–
Paramere medially much expanded, pubescent on submedial small part, distally with 2 processes: apical process with 1 sensillum and 3 small teeth apically; subapical process longer than apical one, with spine-shaped projection apically (
Figs. 33, 34
); aedeagal median rod subapically expanded and asymmetrical, with 1 pair of small acute projections submedially (
Figs. 33, 35
); aedeagal basal bridges asymmetric, tripartite, strongly sclerotized, but without small teeth except for triangular tip of anterior process (
Fig. 33
).
Material examined
. –
Holotype
male (terminalia dissected),
MALAYSIA
: Ulu Senagang, Crocker Range,
Sabah
, coll.
M. J. Toda
,
18 Oct.1999
(
KPSP
).
Decription.
–
Male. Thorax: orange yellow. Scutellum with trifurcate brown patch, pale yellow on tip. Anepisternum with several setulae.
Wing: Hyaline.
Legs: All femora lacking patches. Midleg tibia subapically with 3–4 longer setae on anterior surface.
Abdomen: First to fifth tergites yellow; second tergite with brownish black patches submedially; third to fifth tergites each with medially nearly interrupted, laterally protruded, black band on posterior margin and 1 pair of yellow patches laterally; sixth tergite nearly entirely black, narrowed on lateral margins, with a few long strong setae on posterolateral margins.
Male terminalia: Epandrium pubescent anteroventrally and dorsomedially, with 8 setae on dorsal to posterolateral portion per side (
Fig. 30
). Surstylus pubescent, with dense setae medially and apically rounded prensisetae on inner margin (
Fig. 31
). Additional plate between cerci and 10th sternite pubescent, medially connected to 10th sternite (
Fig. 32
). Posterolateral lobe of hypandrium undeveloped. Aedeagus with 1 pair of bridges (
Fig. 33
).
Figs. 30–35.
Phortica
(
Phortica
)
zeta
Chen & Toda
,
new species
, male: 30, epandrium and cercus in lateral view; 31, surstylus in frontal view; 32, tenth sternite and additional plate in frontal view; 33, hypandrium, gonopod, paramere and aedeagus in lateral view; 34, paramere in frontal view; 35, tip of aedeagal median rod in ventral view.
Female: Unknown.
Measurements: BL =
3.78 mm
in
holotype
; ThL =
1.94 mm
; WL = 3.00 mm; WW =
1.28 mm
.
Indices: arb = 6/3, avd = 0.83, adf = 2.20, flw = 1.60, FW/ HW = 0.40, ch/o = 0.08, prorb = 1.15, rcorb = 0.50, vb = 0.35, dcl = 0.60, presctl = 0.80, sctl = 1.10, sterno = 0.95, orbito = 1.60, dcp = 0.24, sctlp = 1.10, C = 2.21, 4c = 1.36, 4v = 2.43, 5x = 0.88, ac = 3.80, M = 0.50, C3F = 0.74.
Etymology.
–
In reference to the paramere looking like Greek letter ‘zeta’ in lateral view.
Distribution
.
–
Malaysia
(
Sabah
).
Remarks
.
–
This species is very similar to
P
.
(
P
.)
eparmata
(
Okada, 1977
)
from
Taiwan
in the shape of paramere, but can be distinguished from it by the aedeagal median rod and the aedeagal basal bridge (in
P
.
eparmata
: aedeagal median rod much expanded apically, without submedial projections; aedeagal basal bridge with a few acute teeth).