Pipunculidae (Diptera) from southern Iran, including two new species of the genus Tomosvaryella Aczél
Author
Majnon-Jahromi, Bahareh
Author
Gheibi, Mehdi
Author
Fallahzadeh, Majid
Author
Kehlmaier, Christian
Author
Hesami, Shahram
text
Zootaxa
2017
4273
4
488
500
journal article
32892
10.11646/zootaxa.4273.4.2
316e1968-2a32-462e-a554-99165078f1fc
1175-5326
803688
77091F8E-2A3C-4A9B-81C2-656B5BF72C22
Tomosvaryella angulata
Kehlmaier & Majnon-Jahromi
sp. nov.
Figs 3–8
Type material.
HOLOTYPE: 1♂, loc. 7,
9–16.v.2014
(SMTD); PARATYPES: 1♂ (DNA CK831,
LT671787
), loc. 7,
9–16.v.2014
(SMTD); 1♂, loc. 4,
18–28.vi.2015
(SHIAU); 1♀ (DNA CK804,
LT671786
), loc. 3,
5–15.iv.2012
(SMTD).
Description. MALE
. Body length
2.9–3.3 mm
; wing length
3.5–3.8 mm
; eyes meeting for a distance slightly more than twice the length of ocellar triangle, i.e., for approximately six to nine ommatidia; pedicellus with two minute bristles dorsally and one ventrally; flagellum pointed, tawny, tip may be paler; thorax dark brown except postpronotal lobe yellow; dorsal bristles hardly discernible, black; wing membrane with a faint brownish tinge; wing membrane covered in microtrichia except for the base, including the anal lobe basally; third costal segment 1/ 3 the length of fourth costal segment; crossvein r-m reaching cell dm at or shortly after the middle; crossvein bm-cu interrupted right before reaching cell br on both wings; halter with dark base, whitish stem and light brown knob; leg dark brown except for the narrowly yellow apex of femora, basal 1/3 and apex of tibia and tarsal segments except distitarsus; hind trochanter ventrally smooth, without spines or projection; fore femora with posteroventral row of minute black spines in apical half; mid femora with antero- and posteroventral row of minute black spines for more than apical half; hind femora with anteroventral row of minute black spines in apical half; pulvilli slightly shorter than distitarsus; abdomen dark brown; tergite 1 with lateral patch of about ten short black setae on each side, slightly shorter than width of tarsal segments; dorsal setae of abdomen black, hardly discernible; sclerites dark brown, apparently evenly sclerotised; genitalia, in dorsal view, with short epandrium, broader than long, slightly less sclerotised in the central part; surstyli almost symmetrical, gradually tapering towards apices, which are distinctly knobbed; left surstylus slightly protruding the right one; membrane of syntergosternite 8 large, almost reaching epandrium, caudally occupying 1/3 of syntergosternite 8; in lateral view, apical half of surstyli bent towards venter by 90° (see inner margin); phallus trifid, with two longer and one shorter upright and wavy ejaculatory ducts, the longest one carrying about six scale-like projections at its base (see at high magnification, i.e., 100x); phallic guide small and inconspicuous, tip pointing towards epandrium.
FEMALE
. Body length
2.7 mm
; wing length
3.2 mm
, differing from male by dichoptic eyes; frontal ommatidial facets distinctly enlarged; frons widened in its middle, twice the width of the ocellar triangle or equal to the length of four enlarged ommatidial facets; flagellum with paler apical half; crossvein r-m reaching cell dm shortly after the middle; pulvilli of fore and mid legs as long as distitarsi; ovipositor with dark base and yellow piercer; in lateral view, base of ovipositor with a distinct ventral protuberance; piercer gently undulating; in dorsal view, base of ovipositor rather trapezoid and piercer with weak lateral flanges in the middle of its length.
Differential diagnosis.
To the best of our knowledge,
T. angulata
sp
.
nov
.
is a unique species among the Palaearctic
Pipunculidae
, due to its distinctly apically-knobbed and laterally-bent surstyli in the male, and due to the weakly undulating ovipositor that bears a distinct ventral protuberance in the female (
Figs 3–8
). For further remarks, see under
T. pistacia
sp
.
nov
.
Etymology.
The Latin adjective
angulata
(English: angular) refers to the angled surstyli of male genitalia.