Review of the genus Scaeosopha Meyrick, 1914 (Lepidoptera, Cosmopterigidae, Scaeosophinae) in the world, with descriptions of sixteen new species
Author
Li, Houhun
College of Life Sciences, Nankai University, Tianjin 300071, China
lihouhun@nankai.edu.cn
Author
Zhang, Zhiwei
College of Life Sciences, Nankai University, Tianjin 300071, China & College of Forestry, Shanxi Agricultural University, Taigu, Shanxi 030801, China
Author
Sinev, Sergey Yu.
Zoological Institute of Russian Academy of Sciences, St. Petersburg, Russia
text
Zootaxa
2012
2012-05-23
3322
1
34
journal article
1175-5326
Scaeosopha gibbosa
Li
et
Zhang
sp. nov.
(
Figs. 24
,
48
,
60
)
Description.
Adult (
Fig. 24
): Wingspan 16.5–19.0 mm. Head with frons white, vertex deep-yellow, scale tuft behind compound eye yellow except black posteriorly. Antenna whitish-yellow except scape black and flagellum ringed with black dorsally. Labial palpus grayish-white, third segment dark-brown in distal half. Thorax whitishyellow, yellow along margin. Tegula grayish-yellow, with black scales on outer and inner margins. Forewing whitish-yellow, overlaid with brown spots and patches, yellow along fold, predominantly brown posteriad of fold; rounded black spot at end of cell; large black patches at base of costal margin and dorsad of fold to tornus; several longitudinal pale-brown streaks along veins from before anterodistal corner to ventrodistal corner along outer margin of cell; terminal line dark-brown; cilia whitish-yellow, mottled black scales on termen. Hindwing and cilia yellowish-brown. Legs dirty whitish-yellow.
Male genitalia (
Fig. 48
): Brachia of uncus broad at base, narrowed to 3/5 where it curved slightly inward; distal 2/5 narrow, elongate elliptical. Valva broad and short, elliptical, with numerous commalike processes on ventral half, ventral margin with fine setae; valvella strong, longer than valva, sparsely setose, dilated distally, apex round, with a setose process from base reaching 2/3 length. Phallus very long, more than three times length of uncus brachium, evenly wide, weakly sclerotized; cornutus absent.
Female genitalia (
Fig. 60
): Posterior apophysis about twice as long as anterior apophysis. Sterigma tubular, parallel sided laterally, posterior margin obliquely truncate. Ductus bursae longer than twice length of anterior apophysis; ductus seminalis arising from about middle of ductus bursae. Corpus bursae large, elongate oval, slightly shorter than ductus bursae; signa a pair of longitudinal sclerotized leaf-shaped plates, about 1/5 length of corpus bursae.
FIGURES 47–52.
Male genitalia of
Scaeosopha
spp.
47,
S. dentivalvula
sp. nov.
, holotype, BMNH Microlep. slide no. 31018; 48,
S. gibbosa
sp. nov.
, holotype, BMNH Microlep. slide no. 31000; 49,
S. grandannulata
sp. nov.
, holotype, BMNH Microlep. slide no. 31010; 50,
S. rarimaculata
sp. nov.
, holotype, BMNH Microlep. slide no. 31004; 51,
S. trigonia
sp. nov.
, holotype, BMNH Microlep. slide no. 30999; 52,
S. triocellata
(Stainton)
, BMNH Microlep. slide no. 32351.
Type material.
Holotype
♂
,
BRUNEI
:
Rampayoh R.
[
4°29' N
,
114°29' E
], LP 291B, GR 951801, Lowland dipterocarp forest,
150 ft.
,
11–15.iv.1988
, coll.
G. S. Robinson
, BM 1988-160, BMNH
Microlep.
slide no. 31000,
Houhun Li
(
BMNH
, London).
Paratypes
:
4 ♂
,
1 ♀
, same data as for holotype, BMNH Microlep. slide no. 31001 (
♀
), Houhun Li (
BMNH
, London)
.
Distribution.
Brunei
.
Diagnosis.
This new species is similar to
S
.
chionoscia
Meyrick
in the male genitalia, but can be separated from it by the valva having numerous commalike processes on ventral half and the valvella with a setose process arising from base in the male genitalia; the tubular sterigma obliquely truncate on posterior margin and the signa being a pair of sclerotized longitudinal leaf-shaped plates in the female genitalia. In
S. chionoscia
Meyrick
, the valva has commalike processes throughout the ventral surface and the valvella lacks the process (
Fig. 43
); the sterigma is cone-shaped and the signa are a pair of fan-shaped plates (
Fig. 56
). The new species is also similar to
S. incantata
Meyrick
, but can be distinguished by the tegumen being slightly concave on the anterior margin, whereas
S. incantata
has the margin deeply concave and trianglar (
Fig. 44
).
Etymology.
The specific epithet is derived from the Latin
gibbosus
= gibbous, in reference to the valvella with a setose process in the male genitalia.