Revision of Indian species of Baeus Haliday (Hymenoptera: Platygastroidea: Scelionidae)
Author
Kamalanathan, Veenakumari
Author
Mohanraj, Prashanth
Author
Samuel, D. K.
Author
Reddy, M. Krishna
text
Journal of Natural History
2020
2020-09-30
54
13 - 14
813
917
http://dx.doi.org/10.1080/00222933.2020.1770885
journal article
10.1080/00222933.2020.1770885
1464-5262
5020678
878C5BFB-C2CB-4163-A08B-C761B4C6F087
Baeus menaka
Veenakumari
,
sp. n
.
(
Figure 21
(a–e))
http: //www.zoobank. org/
urn:lsid:zoobank.org:act:
C4C919F0-AC51-466A-BF54-BD6B3D602988
Holotype
.
Female; body length = 0.65 (0.61–0.69) mm; n = 2
Colour
(
Figure 21
(a)).
Head, mesonotum and metasoma honey brown, propodeum paler than rest; hyperoccipital carina black; posterior margins of mesoscutum and mesoscutellum with a black band followed by a yellow line; A1, A2 dark brown, remaining antennomeres yellowish brown; clava ventrally dark brown, dorsally yellow; legs yellowish brown to dark brown
Head
(
Figure 21
(a–e)).
Head 1.17 (1.15–1.19)× as wide as high;
IOS
0.48 (0.46–0.50)× width of head and 1.33 (1.28–1.37)× eye length; eye (L: W = 9.1:7.6) setose, not touching hyperoccipital carina posteriorly; head height 2.37 (2.34–2.40)× eye length; POL>LOL in ratio of 14.9:10.1; lateral ocellus away from orbits by 0.72 (0.69–0.75)×
MOD
; pilosity dense, setae of medium length, shorter than those on mesonotum and metasoma; distance from posterior margin of lateral ocellus to hyperoccipital carina 0.50 (0.47–0.52)×
MOD
; interantennal process triangular, pointed, weakly rugose; central keel not distinct (very short, consisting of a few vertical weak reticulations); facial striae prominent, extending up to 0.76 (0.70–0.82)× length from base of mandible to lower orbit; malar striae absent; frons adjacent to central keel smooth, followed by weak reticulations, with scutes longer than wide; upper frons and vertex weakly reticulate; gena smooth, 3.23 (3.20–3.26)× as long as wide; anterior margin of gena in contact with 0.63 (0.61–0.65)× length of ventral margin of eye; length of A1 0.84 (0.79–0.88)× that of clava; length of A2 0.32 (0.29–0.34)× that of A1.
Figure 21.
Baeus menaka
sp. n.
(a) Habitus (colour); (b) Frons; (c) Habitus; (d) Antenna; (e) Habitus (lateral view).
Mesosoma
(
Figure 21
(a,c,e)).
Mesoscutum and mesoscutellum 0.51 (0.48–0.53)× and 0.17 (0.15–0.19)× as long as wide, respectively; mesoscutum and mesoscutellum weakly coriaceous reticulate; metascutellum not visible; propodeum smooth dorsally, subequal in length to that of mesoscutellum; pilosity dense, setae of medium length; lateral pronotal area dorsally imbricate, reticulations elongate anteriorly, remainder smooth; ventral margin of lateral pronotal area extending as a short blunt projection; transverse carinae on dorsal mesopleuron terminate above the dorsal level of metapleuron; mesopleuron ventrally with a small reticulate patch, remainder smooth; mesopleuron extending as a short narrow projection ventrally; mesopleural pit elongate; metapleuron smooth; posterior metapleural suture straight, except for a gentle curve medially; dorsal level of posterior metapleural suture ventral to level of antero-lateral margin of
T
2; propodeal spiracle closer to anterior margin of lateral propodeum; region posterior to propodeal spiracle smooth with three transverse carinae extending towards posterior margin of lateral propodeum; region ventral to spiracle with two oblique carinae; remainder of propodeum smooth; propodeal spiracular opening tear-drop shaped.
Metasoma
(
Figure 21
(a,c,e)).
Metasoma as long as wide; pilosity dense, setae of medium length;
T
2 anteriorly finely imbricate, posteriorly smooth; remaining tergites smooth.
Host.
Reared from eggs of unidentified spider.
Material examined.
Holotype
:
Female
(
ICAR
/
NBAIR
/
P3270
),
INDIA
:
Karnataka
:
Mandya
,
Madduru
, 12
°
35
ʹ
02
ʹ
’
N 77
°
04
ʹ
34
ʹ
’E,
646 m
, reared from spider eggs on sugarcane,
15.I.2009
;
Paratypes
:
4 females
(
ICAR
/
NBAIR
/P3271–P3274) same data as
holotype
.
Etymology.
This species is named after Menaka, an enchanting Apsara or celestial female spirit of the clouds and waters in Hindu and Buddhist mythology. The name is treated as a noun in apposition.
Diagnosis.
B. menaka
sp. n.
is closer to
B. densipilosus
sp. n.
and the diagnosis is mentioned under the latter.
B. menaka
sp. n
is also closer to
B. sreedeviae
sp. n.
but differs from it in having sculptured A1 and mesoscutellum while both are smooth in
B. sreedeviae
sp. n.