Review of the genus Helcystogramma Zeller (Lepidoptera: Gelechiidae: Dichomeridinae) from China
Author
Li, H. H.
Author
Zhen, H.
text
Journal of Natural History
2011
2011-04-19
45
17 - 18
1035
1087
http://dx.doi.org/10.1080/00222933.2011.552798
journal article
10.1080/00222933.2011.552798
1464-5262
5203573
The
trijunctum
group
This group is defined by the following characters: the ocellus absent, the antenna ciliate, the labial palpus with (
Figure 4C
) or without (
Figure 4D
) long scales on dorsal surface, the third segment shorter than second, the forewing usually with scale tufts at about middle and end of cell as well as at fold; the eighth tergite nearly straight anteriorly, the uncus narrowed from base to apex, its anterior margin concave triangularly, the gnathos blunt apically, the vinculum with distal part of lobes directed obliquely inward, usually thumb-shaped and blunt apically, the saccus broad, often bluntly rounded anteriorly (
Figure 16E
), the aedeagus nearly equal to or slightly shorter than valva, narrow and with clusters of spines distally in the male genitalia; the eighth tergite straight posteriorly, the antrum spined, the ductus bursae sclerotized distally, the corpus bursae densely spined on inner surface, usually protruding posteriorly on one side, and the ductus seminalis arising from apex of protrusion in the female genitalia.
This species group occurs in
China
only, including eight species:
H
.
hassenzanensis
Park
et
Hodges, 1995
,
H
.
trijunctum
(
Meyrick, 1934
)
,
H
.
albilepidotum
sp. nov.
,
H. angustum
sp. nov.
,
H
.
flavistictum
sp. nov.
,
H. furvimaculare
sp. nov.
,
H. imagitrijunctum
sp. nov.
, and
H
.
rectangulum
sp. nov.
They belong to the Oriental Region, distributed mainly in the middle and southeast parts, ranging from south of Qinling Mountains to
Taiwan
(
Figure 3
).