Four new species of Estheria Robineau-Desvoidy (Diptera: Tachinidae) from China and Nepal, with a review of the East Palearctic and Oriental species
Author
Zhang, Chun-Tian
Author
Shima, Hiroshi
Author
Liang, Hou-Can
Author
Li, He-Nan
text
Zootaxa
2019
2019-05-08
4603
1
1
38
journal article
26817
10.11646/zootaxa.4603.1.1
8c3d903d-6d82-45d1-a1c0-b29f5b97d0c1
1175-5326
2841928
8A6746BE-616B-4FEC-AA37-E274F8508255
Estheria maculipennis
Herting, 1968
(
Figs 9
,
21
,
33
,
45
,
61
,
87
,
100
,
115
)
Estheria maculipennis
Herting, 1968
, 11: 61. Type locality:
Mongolia
,
Hentiy Aimag
[as “Chentej aimak”], Čandagan tal, Chentej aimak.
Holotype
♂
(HNHM) not examined. References:
Herting & Dely-Draskovits (1993
: 364; Palearctic catalog);
Zhang
et al.
(2013
: 139; as “
E. alticola
”, misidentification).
Diagnosis.
Prementum 6–7 times as long as wide, 3 presutural and 4 postsutural dorsocentral setae, postpronum and scutellum reddish-yellow at least apically, wing brown to dark clouded along crossvein r-m, tegula dark brown, basicosta brown, lower calypter with short fringe on outer margin, tergites 3 and 4 each with a pair of laterodiscal setae.
Redescription.
Body length: 8.0–12.0 mm.
Head. Pedicel, base of 1
st flagellomere
and palpus reddish-yellow. Frons 1/5–1/6 as wide as eye in male, 1.5 times as wide as eye in female; width of parafacial at antennal base about 1/2 of eye width in male and 3/
4 in
female; genal height about 1/2–3/5 of eye height in male and 4/
5 in
female. Antenna falling short of lower margin of face by more than 1
st flagellomere
length; 1
st flagellomere
1.2–1.5 times as long as pedicel; arista plumose, aristal hairs about as long as width 1
st flagellomere
; prementum 6–7 times as long as wide.
Thorax black in ground colour, with yellowish-gray or brownish pruinosity; postpronum and apex of scutellum reddish-yellow or yellow, dorsum with 4 longitudinal black vittae, inner vitta about 1/4 width of pruinose area between inner and outer vittae in male, narrower in female. Postpronotom with 3 setae arranged in a triangle and 1–2 weak inner setae; 2 presutural and 2 postsutural acrostichal setae, 3 presutural and 4 postsutural dorsocentral setae, 3 postsutural intra-alar setae; prealar setae weak; 3 katepisternal setae; scutellum with 3 pairs of strong marginal setae, apical scutellar setae crossed.
Wing
brown to dark clouded along crossvein r-m, portion beyond dM-Cu brownish. Tegula dark brown, basicosta and halter brown; calypters whitish, lower calypter with short fringe on outer margin. Costal spine weak, as long as crossvein r-m, relative lengths of 2nd, 3rd and 4th costal sectors approximately 1:2:1; base of R
4+5
with setulae dorsally and ventrally; section of M between crossveins r-m and dM-Cu about twice as long as section between dM-Cu and bend; vein M from dM-Cu crossvein to bend about as long as distance between bend and wing margin; M at bend with an appendage shorter than crossvein r-m; wing cell r
4+5
closed at margin or with a petiole at most 0.20 times as long as postangular section of M.
Legs
with all tibiae and ventral apices of femora reddish-yellow or yellow, femora brown to dark in male and entirely reddishyellow in female. Fore tibia with a row of anterodorsal setae and 2 posterior setae; mid femur with 3–4 anterior setae, mid tibia with 3 anterodorsal, 3 posterodorsal and 2 ventral setae; hind tibia with 3 anterodorsal, 5 posterodorsal and 3 ventral setae, 2 preapical dorsal setae. Male claws and pulvilli longer than 5th tarsomere.
Abdomen dark brown in ground colour in male, wholly covered with pruinosity, with irregular markings. Syntergite 1+2 excavated to posterior margin, without median marginal setae, with 1 lateral marginal seta, 2–3 lateral discal setae; tergites 3 and 4 each with 2 median discal setae and a pair of lateral discal setae.
Male terminalia
as in
Figs 9
,
21
,
33
,
45
.
Material examined.
China
,
Inner Mongolia
:
3 ♂♂
,
Wulagai
,
Dong Ujimqin Qi
,
22.VIII.1971
,
Y.-S. Shi
leg. (
IZCAS
)
.
Distribution.
China
(
Inner Mongolia
),
Mongolia
,
Russia
(E Siberia).
Remarks.
We identified this species based on
Herting’s (1968)
original description. It is similar to
E. acuta
(Portschinsky)
, but differs in having narrower frons, longer prementum, and abdomen dark brown in ground colour in male.