New species of Afrotropical Muscidae (Diptera: Muscoidea)
Author
Couri, Márcia
Author
Pont, Adrian C.
text
Zootaxa
2014
3852
3
301
320
journal article
10.11646/zootaxa.3852.3.1
957e5d0f-c452-4d45-85cf-24f138ab2359
1175-5326
229938
13B15A57-576A-4617-9D8A-7F27D970315A
Helina harrisorum
sp. nov.
Figs 3
,
13–17
.
Type
material
.
Holotype
♂,
REPUBLIC OF SOUTH AFRICA
: Free State, Harrismith, Mooihoekkop, 28°10′50.0′S, 29°10′51.1′E,
ca
.
1800 m
, Malaise traps,
Leucosedea
-dominated scrub,
14–16.ix.2009
(A.H. Kirk- Spriggs),
BMSA
(D)08761 (
BMSA
).
Paratypes
,
56♂
41♀.
REPUBLIC OF SOUTH AFRICA
:
48♂
33♀, same data as
holotype
, except:
BMSA
(D)08760, 0 8763, 0 8764, 0 8782, 0 8788, 0 8797, 0 8799, 0 8800, 0 8806, 0 8808, 0 8818, 0 8819, 08821–08824, 0 8828, 0 8832, 0 8834, 0 8839, 0 8863, 0 8865, 0 8866, 0 8868, 0 8871, 0 8883, 0 8887, 0 8922, 0 8981, 0 9101, 0 9105, 0 9106, 0 9109, 0 9110, 0 9113, 0 9135, 0 9138, 0 9139, 0 9141, 0 9145, 0 9151, 0 9156, 09158–09165, 0 9167, 09169–09176, 0 9178, 0 9179, 09181–09183, 0 9189, 0 9190, 0 9195, 0 9201, 0 9202, 0 9206, 0 9208, 0 9215, 09225–09229, 10026, 10044, 10057, 10066” (all
BMSA
);
1♂
, 2♀, same, except:
BMSA
(D)08762, 0 9111, 0 9180 (all
MNRJ
);
1♂
, same, except:
BMSA
(D)10265 (
BMNH
);
RSA
: Free State, Harrismith, Nesshurst farm, 28°26′53.3′S, 29°09′14.2′E, Malaise traps,
Leucosedea
-scrub & stream bed,
17–18.ix.2009
(A.H. Kirk-Spriggs),
2♂
, 2♀,
BMSA
(D)10739, 10760, 10795, 10849 (all
BMSA
);
RSA
: Free State, Harrismith,
Scotland
farm at: 27°58′59.5′S, 29°37′09.8′E, Malaise traps, dense
Leucosedea
-dominated scrub,
10–12.xi.2009
(A.H. Kirk- Spriggs),
4♂
, 5♀,
BMSA
(D)11453, 11504, 11542, 11561, 11607, 11616, 11660, 11687, 11740 (all
BMSA
); same, except:
BMSA
(D)11648,
1♂
(
MNRJ
);
RSA
: Free State, Harrismith, Geluksdal farm at: 27°54′7.05′S,29°23′31.9′E, Malaise traps, sparse
Leucosedea
-dominated scrub,
9–10.xi.2009
(A.H. Kirk-Spriggs),
1♂
,
BMSA
(D)13230 (
BMSA
);
RSA
: Eastern Cape, Tsitsikamma N.P., below Sleepkloof hut at:
33°56.974′S
,
23°54.926′E
, Malaise trap, indigenous forest,
20–22.i.2009
(A. Kirk-Spriggs & S. Otto), 1♀,
BMSA
(D)03159 (
BMSA
).
Diagnosis.
Distinguishable by the colour patterning of the notum, the bare meron and presence of 2 postsutural intra-alars. Morphologically similar to
H
.
icterica
(Séguy, 1937)
and
H
.
scutellaris
Zielke, 1971
, but
H
.
icterica
has virtually clear crossveins and the dark abdominal maculae obsolescent, whilst
H
.
scutellaris
differs from the new species, according to Zielke’s (1971) description, by the wings having a strong yellowish brown tinge.
Description.
General colouration
. Ground colour brown and yellow, with grey to whitish grey pruinosity; head with frons black; fronto-orbital plate, parafacial and face silvery pruinose; gena grey; antenna brown, scape with yellow areas, arista brown; palpus yellow; notum with patterning as in
Fig. 3
; pleura mostly yellow, with large grey-brown areas on anepisternum, anepimeron and meron; spiracles yellow; wing with black infuscations over
r–m
and
dm–cu
crossveins, the latter more intense at its ends; bifurcation of veins
R2+3
and
R4+5
dark brown; veins otherwise yellow; calypters white; haltere light yellow, knob white; legs yellow, tarsi brown; abdomen brown, with grey pruinosity and some yellow marks, especially in female; syntergite 1 + 2 of male mostly yellow; syntergite 1 + 2 and tergites 3–4 with light brown lateral infuscations; tergite 5 with median fascia, not reaching the posterior margin, bases of setae in female with small brown round marks.
♂.
Measurements
. Body length: 6.0 mm; wing length:
5.6 mm
.
Head
. Eye bare; eyes separated at level of anterior ocellus by distance equal to ¼ head-width; frons narrowed medially; 3 pairs of frontal setae close to lunule; medial vertical seta long, lateral vertical short; ocellar setae short; antenna inserted at mid-level of eye, postpedicel
ca
. 3 × length of pedicel; arista long-plumose, the longest combined plumosity equal to length of postpedicel; palpus filiform.
FIGURES 13–19.
Helina harrisorum
sp. nov.
:
13
. cercal plate and surstyli, dorsal view;
14
. epandrium, cercal plate and surstylus, lateral view;
15
. aedeagus, lateral view;
16
. ovipositor, dorsal view;
17
. ovipositor, ventral view and spermathecae.
Helina ferfriniorum
sp. nov.
:
18
. ovipositor, lateral view;
19
. egg.
Thorax
. Dorsocentrals 2 + 3; acrostichal setulae in 3–4 irregular rows presuturally, arranged in 5–6 irregular rows postsuturally, prescutellar pair fine; 2 postpronotals; 1 presutural and 2 postsutural intra-alars; 1 presutural and 2 postsutural supra-alars, posterior one short; 2 postalars; prealar present, but short, barely 3 × as long as ground-setulae; notopleuron with 2 setae, the posterior slightly shorter than anterior, otherwise bare; anepisternum with series of 4 long setae, with finer one between third and fourth, and setula in upper anterior corner; katepisternals 1 + 2 (some specimens with short, but distinct, lower anterior seta). Scutellum with 1 long basal and 1 long apical pair of setae, similar in length; margins and ventral surface bare.
Legs
. Fore femur with rows of posteroventral, posterior and posterodorsal setae; fore tibia with posterior median seta and dorsal preapical seta; apical posteroventral long; mid femur with series of anterodorsal setae in basal ½ and 1 preapical, 3 posteroventral setae in basal ⅓, but no anteroventrals; 3 posterior preapicals, 1 short; mid tibia with 2–3 posterodorsal setae, without anterodorsals; anterior, anteroventral, ventral and posteroventral apical setae, the ventral one longer; hind femur with complete row of anterodorsal setae and well-spaced row of 4–6 anteroventrals, anterodorsal, dorsal and posterodorsal surfaces with preapical setae; hind tibia with 1–2 anterodorsal setae on median ⅓, 1 submedian anteroventral, 1 dorsal and 1 anterodorsal preapical, and 1 long ventral apical.
Wing
. Veins bare; veins
R4+5
and
M
parallel at wing-tip; costal spine developed; lower calypter large,
ca
. 2 × length of upper calypter.
Abdomen
. Syntergite 1 + 2 and tergite 3 with lateral setae; tergites 4–5 each with marginal and discal row of setae; sternite 1 bare.
Terminalia
. Cercal plate virtually as high as wide; surstylus large (
Figs 13–14
); aedeagus as in
Fig. 15
.
♀.
Measurements
. Body length:
6.2 mm
; wing length:
5.9 mm
.
Similar to male, differing in the following respects: frons with 5 pairs of setae (frontals and orbitals) along entire length (not confined to area close to lunule as in males); ovipositor long, with microtrichia on both sides (
Figs 16–17
); spermathecae round, as in
Fig. 17
.
Distribution
.
Republic of South Africa
(Free State, Eastern Cape).
Etymology
. The species is dedicated to Sandra and John Harris and is a Latinized noun in the genitive plural.