New Species And Records Of Hypselothyrea De Meijere (Diptera, Drosophilidae)
Author
Papp, L.
text
Acta Zoologica Academiae Scientiarum Hungaricae
2003
2004-06-30
49
4
271
294
journal article
10.5281/zenodo.12586958
2064-2474
12586958
Hypselothyrea (Deplanothyrea) longimana
sp. n.
(
Figs 29–30
)
Holotype
male (
MHNG
):
INDIA
:
Meghalaya
,
Khasi Hills
,
Nongpoh
,
700 m
,
5. XI. 1978
, leg.
CLAUDE
BESUCHET
et
IVAN
LÖBL
, No. 42b (left fore tarsi lost, some setae broken but otherwise in good condition; when described in alcohol, later prepared with critical point drier).
Paratypes
:
1 male
(
MHNG
, base of abdomen and scutellar area damaged)
,
1 male
(
HNHM
, a faint, immature specimen, genitalia prep., in a microvial): data same as for holotype
.
Measurements in mm: body length 1.86 (
holotype
, with abdomen downcurved), 2.14, 2.145 (
paratypes
).
Bodybrown,ventralpartsofpleuradarkerbrown.Structureofbody,particularlysofortheabdomen, similar to
H
. (
D
.)
subaptera
sp. n.
Anterior fronto-orbital thick but definitely shorter than posterior one. Palpal seta
0.105 mm
long. Vibrissa
0.065 mm
, posterior genal seta
0.07 mm
long. Carina distinct, angular, but reaches middle of facial plate only. Arista with 5 dorsal and 2 ventral rays behind apical fork.
No postpronotal seta, notopleural small, both supra-alar pairs strong and upright, 1 strong pair of dorsocentral setae (
0.34 mm
long), postalar weak (
0.083 mm
). Acrostichal microchaetae minute, in 2 row, intra-alar microchaetae rather scattered, in more or less distinct 2*2 rows. Subscutellum distinct (as that of the
Tachinidae
), scutellum only
0.12 mm
long (
paratype
). Apical scutellar seta perpendicular,
0.33 mm
long, no basal scutellars.
Legs, incl. basitarsi, dark brown. Bases of femora lighter and tarsomeres 2–5 light yellow. Fore femur with 6 minute anteroventral thornlets, no posteroventral row of setae but only a subapical long posteroventral seta.
Completely wingless and without halteres.
Tergite 2 and 3 with 2 pairs each of extremely long thick, perpendicular submarginal setae (longest
0.275 mm
), other (discal and marginal) abdominal setae also rather strong.
Male epandrium subventrally with 3 long thick setae (similarly to
H
. (
D
.)
amputata
sp. n.
) (
Fig. 29
). Strong thick thorn emerge almost evenly on medial surface of surstylus (
Fig. 29
). Inner genitalia (
Fig. 30
) similar to those of
H
. (
D
.)
amputata
,
but both medial and lateral parameral setae are shorter.
Female unknown.
Based on similarities in male genitalia, I think, this new species is related to
H
. (
D
.)
amputata
(although it has only 1 pair of dorsocentrals); they are probably derivatives of the same stem species. The very distant occurrence of these two species makes us to think of several other unknown wingless or reduced-winged species of this group in soils of SE Asia.