Revision of Indian species of Baeus Haliday (Hymenoptera: Platygastroidea: Scelionidae)
Kamalanathan, Veenakumari
Mohanraj, Prashanth
Samuel, D. K.
Reddy, M. Krishna
Journal of Natural History
2020
2020-09-30
54
13 - 14
813
917
Veenakumari
Veenakumari
2020
[324,718,1427,1452]
Insecta
Scelionidae
Baeus
Animalia
Hymenoptera
37
849
Arthropoda
species
flaviscapus
sp. nov.
Holotype.Female; body length = 0.68 mm; n = 1 Colour ( Figure 11(a)).Head, mesonotum and metasoma blackish brown; A1 yellow, A2– A6 dark brown, clava basal half yellow, remainder dark brown; legs yellow with dark brown patches. Head ( Figure 11(a–d)).Head 1.54× as wide as high; IOS0.32× width of head and 0.65× eye length; eye very large (L: W = 20.0:17.0), sparsely setose, not touching hyperoccipital carina posteriorly; head height 1.42× eye length; POL>LOL in ratio of 11.0:7.0; lateral ocellus away from orbit, OOL 0.55× MOD; pilosity of moderate density, setae of medium length; distance from posterior margin of lateral ocellus to hyperoccipital carina 1.45× MOD; interantennal process triangular, rugose; length of central keel 0.63× distance to median ocellus; facial striae very long extending up to lower orbit; malar striae sparse; frons adjacent to central keel reticulate to coriaceous reticulate; upper frons above central keel and vertex weakly reticulate, sparsely setose; gena smooth with foveae on posteroventral margin, 4.32× as long as wide; anterior margin of gena in contact with 0.77× length of ventral margin of eye; length of A1 0.91× that of clava; length of A2 0.42× that of A1. Mesosoma ( Figure 11(a,c)).Mesoscutum and mesoscutellum 0.42× and 0.19× as long as wide, respectively; mesoscutum coriaceous reticulate; mesoscutellum coriaceous reticulate in anterior half, remainder smooth; metascutellum not visible; propodeum smooth dorsally, 0.38× length of mesoscutellum medially; pilosity of moderate density, setae of medium length; antero-lateral margin of mesoscutellum with a fovea; lateral pronotal area predominantly transversely carinate except for coriaceous reticulations on anterior margin; ventral margin of lateral pronotal area extending as a short blunt projection; transverse carinae on dorsal mesopleuron extend much below the level of dorsal metapleuron; mesopleuron ventrally with a coriaceous patch, remainder smooth, extend ventrally as a short projection; mesopleural pit elongate; metapleuron dorsally weakly rugose, ventrally coriaceous reticulate, remainder smooth; posterior suture of metapleuron straight with a gentle curve medially; dorsal level of posterior metapleural suture ventral to level of antero-lateral margin of T2; sculpturing of propodeum anterior to spiracle with weak transverse carinae, region posterior to spiracle smooth; region ventral to spiracle with an oblique carina surrounded by confusedsculpture, and with transverse carinae antero-ventrally; remainder of lateral propodeum smooth; propodeal spiracular opening small and round. Metasoma ( Figure 11(a,c)).Metasoma 1.4× as long as wide; pilosity of moderate density, setae of medium length; T2 coriaceous reticulate, posteriorly smooth; remaining tergites smooth. Material examined. Holotype: Female( ICAR/ NBAIR/ P2968), INDIA: Tamil Nadu: Yercaud, HRS, 11 °47 ʹ44 ʹ’ N 78 °12 ʹ42 ʹ’E, 1399 m,YPT, 04.VIII.2016.
Etymology.The Latin epithet ‘flaviscapus’ refers to the unique yellow scape. The name is treated as a noun in apposition.
Diagnosis. B. flaviscapus sp. n.is closer to B. nicobarensis sp. n.and B. vichitra sp. n.In B. flaviscapus sp. n.pilosity not dense, mesoscutellum rectangular and metascutellum not visible; whereas in B. nicobarensis sp. n.pilosity dense, mesoscutellum semicircular and metascutellum visible; B. flaviscapus sp. n.differs from B. vichitra sp. n.in having the posterior ocellus away from hyperoccipital carina and orbit and a slender yellow A1 which Figure 12. Baeus gajakarna sp. n.(a) Habitus (colour); (b) Frons; (c) Habitus; (d) Antenna; (e) Habitus (lateral view). is 4.8× as long as wide; whereas in B. vichitra sp. n.posterior ocellus is contiguous with orbit and closer to hyperoccipital carina and a shorter A 1 inshades of brown.
2016-08-04
ICAR, NBAIR, HRS
India
1399
78.21166
Yercaud
Female
38
850
P2968
1
Tamil Nadu
holotype