Description of four new species of brachypterous Encyrtidae (Hymenoptera: Chalcidoidea) from India
Author
Hayat, Mohammad
Author
Veenakumari, Kamalanathan
text
Zootaxa
2015
3990
2
259
271
journal article
10.11646/zootaxa.3990.2.6
1b3ab383-fe6c-4193-9b8b-357a15429940
1175-5326
240051
2F4BE150-C365-44EC-BC68-5C22B2A76A34
3.
Monstranusia brachyptera
Hayat
,
sp. nov.
(
Figs 18–23
)
Female.
Holotype
. Length,
1.11 mm
Brachypterous form (
Fig. 18
). Head yellow; vertex with a dark brown band behind each posterior ocellus, which meets with a brown band on each side of occipital foramen; frontovertex and face with two narrow brown to dark brown bands, each beginning above torulus and ending at posterior ocellus, and with a transverse band at posterior ocelli connecting these two longitudinal bands; from toruli to mouth margin and malar space dark brown (
Fig. 19
); occiput on each side of foramen with a brown band that extends ventrally; temple with a narrow brown band continuing behind eye and extending ventrally to three-fifths eye height (
Fig. 18
). Antenna brown, gradually becoming dark brown from F2 onwards, with only third segment of clava white in about apical half. Mesosoma dark brown, medially with a narrow, white longitudinal band from apex of pronotum to near apex of scutellum (
Fig. 20
), interrupted by a brown transverse band at level of scuto-scutellar suture; scutellum with a narrow yellow U-shaped band on sides and apex; tegula brown; mesopleuron brown; metapleuron dark brown. Fore wing rudiment infuscate, medially hyaline (
Fig. 22
); hind wing hyaline, lightly infuscate basally and apically (
Fig. 23
). Legs, including coxae, white, except as follows: fore and mid tarsal segments 1–4 yellow to pale brownish yellow, fifth segment dark brown; hind coxa in basal half brown, apical half white; hind femur whitish with base and apex slightly infuscate brown; hind tibia basally pale yellowish brown, becoming whitish apically; tarsal segments 1 and 2 yellow, 3 brownish yellow, 4 brown and 5 dark brown. Metasoma with petiole brownish yellow; gaster dark brown.
Head, subprognathous, higher than broad; head, in dorsal view, with frontovertex 0.43× head width; ocelli small; ocellar triangle with apical angle a right angle; POL:OOL:OCL:AOL, 5:1:2.5:4; head, in frontal view (
Fig. 19
), 1.34× as high as broad; eye height 3× malar space; head with silvery white setae. Antenna (
Fig. 21
) flattened; scape slightly longer than head width, 0.83× head height, and 2.46× as long as broad; pedicel triangular, short; F1 as long as broad, 2.72× as long as pedicel, and 1.36× as long as F2; F1–F5 subequal in width; F2–F5 gradually, but slightly decreasing in length; F6 distinctly shorter and narrower than F5; clava 1.52× as long as broad, and very slightly longer than F5 and F6 combined.
Relative measurements
(
holotype
, on card)—head dorsal width, 23; frontovertex width, 10; head frontal height, 31; eye height (head in profile), 24; malar space, 8; antennal scape length, 26.
Mesosoma (
Fig. 20
) slightly longer than metasoma (41:39); pronotum slightly longer than mesoscutum and 1.3× as broad as long; mesoscutum 1.58× as broad as long; scutellum 1.47× as long as broad; propodeum median length 0.24× scutellum length; setae on thorax short, pale brown; apical pair of scutellar setae detached. Fore wing (
Fig. 22
) 4.14× as long as broad; hind wing (
Fig. 23
) 5.14× as long as broad.
Relative measurements
(
holotype
)— pronotum length (width), 13 (17); mesoscutum length (width), 12 (19); scutellum length (width), 12.5 (8.5); propodeum median length, 3.
Metasoma (
Fig. 18
). Hypopygium extending to apex of gaster.
Male.
Unknown.
Material examined.
Holotype
, ♀ (on card, with right antenna and right wings on slide, No. EH.1780), labelled “
INDIA
: KARNATAKA: Hessaraghatta, Fisheries Div[ision].,
26.iii.2014
(YPT), Coll. K. Veenakumari” (
NBAIR
, registration No.
ICAR
/
NBAIR
/EN.42).
Distribution.
India
: Karnataka.
Etymology.
Greek,
brachys
= short,
pteron
= wing; refers to the short wings in this species.
FIGURES 17, 18.
(17)
Monstranusia antennata
(Narayanan)
. Female, Odisha specimen: body, dorsal. (18)
Monstranusia brachyptera
Hayat
,
sp. nov.
Female: holotype: body, lateral view.
Comments.
This is the first record of brachyptery in
Monstranusia
Trjapitzin. This
new species, excluding the short wings, is similar to the Indian species,
M. antennata
(Narayanan)
, but differs mainly as follows: two longitudinal brown to dark brown bands on frontovertex and face connected by a transverse band at level of posterior ocelli (
Fig. 19
); median longitudinal white band beginning at anterior end of pronotum and ending slightly anterior to apex of scutellum narrow throughout its length; scutellum with a narrow, U-shaped yellow band along margins (
Fig. 20
); median length of pronotum slightly greater than median length of mesoscutum. In
M. antennata
:
two longitudinal brown to dark brown bands on frontovertex and face connected at level of anterior ocellus by a transverse pale brown to dark brown band (
Fig. 17
); median longitudinal white band beginning at anterior end of pronotum and ending at apex of scutellum gradually becoming wider towards apex; scutellum without a U-shaped yellow band along margins (
Fig. 17
); median length of pronotum distinctly less than that of mesoscutum (median length of pronotum 0.76× mesoscutum length, in a slide-mounted mesosoma, and 0.86× mesoscutum length in a card-mounted specimen from Aligarh, Uttar Pradesh, not illustrated). See
Noyes & Hayat (1994)
for diagnosis and figures of this species.