A taxonomic study of Muscidifurax Girault & Sanders from China (Hymenoptera, Chalcidoidea, Pteromalidae)
Author
Xiao, Hui
Author
Zhou, Shi-yu
Author
Tong, Yan-feng
text
ZooKeys
2018
776
91
103
http://dx.doi.org/10.3897/zookeys.776.25030
journal article
http://dx.doi.org/10.3897/zookeys.776.25030
1313-2970-776-91
A0B96D8A85F74594B7A4110D215949B0
Muscidifurax similadanacus Xiao & Zhou
sp. n.
Figs 1-7
Diagnosis.
Fore wing without marginal fringe; each funicular segment longer than broad; head width 1.25
x
head height; Fu1 slightly longer than Fu2; Fu1 without sensilla; median area of propodeum with distinct costula; gaster 2.1
x
as long as broad, Gt1 1/4 length of gaster.
Description.
Holotype. Female. 3.4 mm (Fig. 1). Head and mesosoma dark green, with metallic reflections and white hairs; gaster brown with yellow spot. Antennal scape brown, flagellum dark brown; legs yellow except coxae concolorous with body, femora and pretarsi brown; fore wings hyaline, venation brown except marginal vein dark brown.
Figures 1-7.
Muscidifurax similadanacus
sp. n., 1-6 female holotype 1 Body in dorsal view 2 Head in frontal view 3 Head in lateral view 4 Head in dorsal view 5 Propodeum 6 Fore wing 7 Male, Body in lateral view.
Head in frontal view 1.25
x
as wide as high (Fig. 2); eyes with inner margins parallel, eye height 0.6
x
head height, eyes separated by 1.5
x
their height; antennal scrobes deep, reaching anterior ocellus. Antennal insertion on lower ocular line. Clypeal margin slightly protruded, straight; oral fossa 0.44
x
as wide as head; right mandible with four teeth, left mandible with three teeth. Head in lateral view with malar sulcus inconspicuous, eye height 1.74
x
malar space. Antennal scape length 1.44
x
eye height, exceeding vertex (Figs 2, 3); pedicel in lateral view 2.38
x
as long as broad; anellus transverse; Fu1 1.8
x
as long as broad, slightly longer than Fu2; each funicular segment with sensilla except Fu1; clava not clavate, 2.25
x
as long as broad. Head in dorsal view (Fig. 4), 1.82
x
as wide as long; vertex convex; eye length 2.86
x
temple length; POL 1.33
x
OOL.
Head as broad as mesosoma. Mesosoma not distinctly convex, 2.13
x
as long as broad. Pronotum 0.85
x
as broad as mesoscutum, anteriorly margined, posterior band smooth. Mesoscutum 1.74
x
as broad as long, anterior half weakly reticulate and posterior half with deep reticulation; notauli incomplete, only distinct basally. Scutellum 1.18
x
as broad as long, frenal line absent; reticulation shallow. Propodeum (Fig. 5) medially 0.6
x
as long as scutellum, reticulation irregular on median area, with short irregular carinae; plicae distinct and complete, separated by 1.2
x
medial length of propodeum; median carina complete, costula distinct; nucha short; propodeal spiracles oval, 1.5
x
as long as broad. Fore wing 2.53
x
as long as broad, without marginal fringe (Fig. 6); basal vein and basal cell bare; upper surface of costal cell bare, lower surface with scattered setae; submarginal vein 1.75
x
marginal vein, marginal vein 1.8
x
postmarginal vein, postmarginal vein longer than stigmal vein (1.33
x
); stigmal vein slightly capitate.
Gaster spindle-shaped (Fig. 1) with apex pointed, 2.1
x
as long as broad, 1.49
x
as wide as mesosoma; Gt1 covering 1/4 of gaster, each segment with hind margin entire except hind margin of Gt1 trilobed.
Male. As female, with the following differences. Body length 3.0-3.5 mm (Fig. 7). Antennal insertion above the lower ocular line, each funicular segment longer than broad, with 3-4 rows setae.
Variability.
Females: body length 2.9-3.5 mm, others same as holotype. Males: body length 2.6-3.0 mm.
Remarks.
This new species is similar to
M. raptor
and
M. sinesensilla
sp. n., but noticeably different by the absence of a marginal fringe on the fore wing. It is also very close with
M. adanacus
in having the fore wing without a fringe, but can be recognized with the characters listed in the key.
Material examined.
Holotype. ♀, China: Xinjiang: Urumqi,
43.45°N
87.36°E
, VII.2016, ex. Pupa of
Musca domestica
, leg. Hao-yuan Hu, IOZ(E)1812530 (2016-WJ-066). Paratypes. 7♂, IOZ(E)1812531-1812537 (2016-WJ-062), 7♀, IOZ(E)1812538-1812544(2016-WJ-066), same data to holotype.
Etymology.
The name refers to the similarity of this species with
M. adanacus
, and is to be treated as an adjective.
Hosts.
Pupa of
Musca domestica
.
Distribution.
China (Xinjiang).