Description of three new species of Encyrtidae Walker (Hymenoptera: Chalcidoidea) from India
Author
Krishnachaitanya, T.
Author
Manickavasagam, S.
text
Zootaxa
2016
2016-03-02
4085
2
285
295
journal article
31432
10.11646/zootaxa.4085.2.9
716afd95-102f-4e64-b2ba-b320501eeae6
1175-5326
1052631
43700E6D-A03A-45C0-82ED-01D9C2213DDF
Pseudectroma annamalaicus
Chaitanya & Manickavasagam
sp. nov.
(
Figs 1−6
)
Diagnosis.
Female body (
Fig. 1
) yellowish brown; eye in frontal view 1.6× as high as wide; scape slightly flattened, 2.7× as long as wide; pedicel 1.9× as long as wide; F1 smallest funicular, 1.5× as wide as long; F5 1.8× as wide as long; clava 1.7× as long as broad. Fore wing 2.9× as long as wide; costal cell 15.6× as long as wide; hind wing 5.8× as long as wide; legs with all trochanters, femora and tibiae flat; ovipositor 3.6× as long as mid tibia.
Female
.
Holotype
. Length,
1.9 mm
. Female body yellowish brown; head light brownish yellow; antenna dusky brown except clava basally brown; mesosoma with brown setae; forewing infuscate as in (
Fig. 5
); gaster with venter yellow, dorsum of TI brown across base and TII–TVI each with a distinct brown cross-band; ovipositor sheath brownish yellow.
Head (
Fig. 2
) in frontal view, 1.1× as wide as high and subprognathous; mandible with two acute teeth; posterior ocellus separated from eye by less than its own diameter; antennal torulus situated below lower margin of eye and 2× as long as wide; eye in frontal view1.6× as high as wide; frontovertex 0.4× head width. Antenna (
Fig. 3
) with scape slightly flattened, 2.7× as long as wide; pedicel 1.9× as long as wide; funicle segments all transverse, width and length gradually increasing, F1 smallest, 1.5× as wide as long; F5 1.8× as wide as long; clava 1.7× as long as broad; apically more or less round and longer than F1−F5 combined.
Relative measurements
: (slide mounted @ 400×)—head height:width, 86:99; antennal toruli length:width, 20:10; eye height:width, 37:23; frontovertex width 40; POL 26; OOL 3; OCL 3; AOL 11; scape length:width, 35:13; pedicel length:width, 19:10; funicle length:width, F1, 4:6; F2, 4:7; F3, 4:8; F4, 5:10; F5, 7:13; clava length:width, 35:21.
Mesosoma (
Fig. 4
) imbricate, 1.6× as long as wide; mesoscutum 1.4× as long as wide, with 35−38 setae; each axilla with 7 setae; scutellum as long as wide, with 28−35 setae. Propodeum with 6−8 setae on each side distad spiracles. Fore wing (
Fig. 5
) 2.6× as long as wide; costal cell 15.6× as long as wide; stigmal vein long, postmarginal vein absent; hind wing 5.8× as long as wide; legs with all trochanters, femora and tibiae flat.
Relative measurements
: (card mounted @ 80×)—mesosoma length:width, 18:11; mesoscutum length:width, 15:11; scutellum length:width, 10:10; (slide mounted @ 400×)—fore wing length:width, 225:85; costal cell length:width, 78:5; stigmal vein length 15; hind wing length:width, 151:26; (slide mounted @ 100×)—mid tibia length 15; mid basitarsus length 4; mid tibial spur length 3.
Metasoma longer than mesosoma (24:18); hypopygium extending to apex of gaster; ovipositor (
Fig. 6
) originating from about level of posterior margin of TI, and ovipositor 3.6× as long as mid tibia.
Relative measurements
: (card mounted @ 80×)—gaster length 24; (slide mounted @ 100×)—ovipositor length 55.
Material
examined
.
Holotype
female (on slide under 5 cover slips) labeled “
INDIA
:
Tamil Nadu
,
Chidambaram
,
Annamalainagar
(
N11 23
;
E079 43
),
18.vii.2014
,
Coll. T. Krishnachaitanya
& S.
Manickavasagam
,
through yellow pan traps
.” (
EDAU
,
Registration. No. Enc
/013/2015).
FIGURES 1−3.
Pseudectroma annamalaicus
sp. nov.
, ♀ holotype: 1, lateral habitus; 2, head, frontal view (paratype); 3, antenna (paratype).
FIGURES 4−6.
Pseudectroma annamalaicus
sp. nov.
, ♀ holotype: 4, dorsolateral view of nota; 5, fore wing; 6, ovipositor.
Paratypes
(
9 females
):
1♀
with same data as holotype (dissected, head and antenna on slide under 2 cover slips, remainder on card);
1♀
with same data as
holotype
(dissected antenna on slide under 1 cover slip, remainder on card);
7♀
on card, labeled “
INDIA
:
Tamil Nadu
,
Vellore
(N12 92;
E079 13
),
05.v.2011
,
Coll. S. Manickavasagam
& A.
Rameshkumar
,
through yellow pan traps
” (
8 females
in
EDAU
,
Registration No. Enc
/013/ 2015;
1 female
, on card to be deposited in
NBAIR
)
.
Host
. Unknown.
Male
. Unknown.
Comments
. Females of this species can be easily separated from those of the two other known species,
P
.
samare
and
P
.
indicum
by the characters given in the key.
Etymology
. The species epithet is derived after the
type
locality, Annamalainagar of Chidambaram.