Fourteen new species of the genus Thubdora Park, 2018 (Lepidoptera Gelechioidea: Lecithoceridae) from Uganda, and three new combinations in Ptilothyris Walsingham, 1897 from DR Congo
Author
Park, Kyu-Tek
Author
Mey, Wolfram
Author
Koo, Jun-Mo
Author
Prins, Jurate De
Author
Akite, Perpetra
Author
Cho, Soowon
text
Zootaxa
2020
2020-04-06
4759
4
451
487
journal article
10.11646/zootaxa.4759.4.1
4569c2ca-cbbb-49cb-8460-494916d5f3d8
1175-5326
3740949
131E86B0-BB4B-4D91-8F48-6F2A2207B424
5.
Thubdora trigonoides
Park
,
sp. nov.
(
Figs. 18
A–G)
Type specimens.
Holotype
: male,
Uganda
,
Kibale
Nat. Park,
Biol. Field Station
,
19–24 xi 2014
, LF, leg.
W. Mey
, gen. slide no. CIS-7252
.
Paratypes
:
1♂
, same data as the holotype, gen. slide no. CIS-7009, wing slide no. 7032, COI barcode CBNU062. All types in
MfN
.
Diagnosis
. This new species is externally similar to
T. ghesquierei
, but it is easily distinguished from the latter by the male genitalia: uncus slightly concave on caudal margin and directed outwardly, valva with triangularly elongated cucullus, juxta trapezoidal with short, acute latero-caudal lobes, and aedeagus stout, with a large sac containing numerous spinules medially.
FIGURE 18.
Thubdora trigonoides
Park
,
sp. nov.
:
A, adult, holotype; B, base of antenna, holotype; C, labial palpus, lateral view, holotype; D, venation; E, male genitalia, paratype, gen slide no. CIS- 7009; F, aedeagus, same paratype; G, abdominal segments VI–VIII, same paratype. Scale bar for genitalia and aedeagus: 1.0 mm.
Description.
Male (
Figs. 18
A–D). Forewing length 7.5–8.0 mm.
Head
: Dark brown dorsally, with pale-orange erect scales laterally. Antenna shorter than forewing; basal segment elongated, pale orange dorsally, dark brown on anterior and posterior surface; flagellum serrate, with fine cilia ventrally, pale orange gradually changing to creamy white towards apex, dark-brown annulations irregularly. Second segment of labial palpus thickened, yellowish brown on outer surface, pale orange on inner surface; 3
rd
segment slender, strongly upturned, shorter than 2
nd
segment, pale orange all around.
Thorax
: Notum and tegula dark brown; ventral surface of legs orange white. Forewing costa arched in basal 1/4, strongly oblique beyond 3/4; apex obtuse; termen slightly concave below apex; venation (
Fig. 18D
) with R
1
strongly bent outwardly near base, distance between R
1
and R
2
twice or longer than that between R
2
and R
3
; R
3
and R
4
stalked in proximal half; R
5
absent; M
1
close to R
3+4
at base; M
2
nearly parallel to M
3
; M
3
, CuA
1
and CuA
2
on a common stalk, 1A+2A shortly forked at base; cell closed; fringe black. Hind wing broader than forewing; apex obtuse; venation with M
2
absent; M
3
and CuA
1
short-stalked; cell closed about middle of the wing.
Abdomen
(
Fig. 18G
): No hair-pencils developed in abdominal segment VII-VIII; abdominal segment VIII with heavily sclerotized, crescent anterior margin, with several spines on dorsal surface, not specifically modified on ventral surface. Male genitalia (
Figs. 18E, F
): Uncus with large, latero-caudal processes; anterior margin concave medially. Basal plate of gnathos with round caudal margin; median process elongated, curved pre-apically. Tegumen with thumb-like lobes bearing setae in distal part, incised in inverted V-shape on anterior margin. Valva expanded near base on costa; ventral margin slightly concave before low corner of cucullus; cucullus narrowed toward apex, strongly upturned, densely setose; apex narrowly produced. Juxta trapezoidal, slightly broadened distally, with acute latero-caudal processes, slightly convex medially on caudal margin, with a narrow stalk anteriorly. Vinculum band-like, triangularly produced anteriorly. Aedeagus stout, broad at base, gradually narrowed towards apex; apex sharply produced; cornuti consisting of two different-sized bundles with numerous spines.
Female unknown.
Distribution
.
Uganda
(
Kabarole Distr.
).
Etymology.
This species name is derived from the Greek
trigono
(= triangular), referring to the triangularly elongated cucullus of the male genitalia, with a Greek superlative ending -
oides.