Baeus krumbiegeli Veenakumari, 2020

Kamalanathan, Veenakumari, Mohanraj, Prashanth, Samuel, D. K. & Reddy, M. Krishna, 2020, Revision of Indian species of Baeus Haliday (Hymenoptera: Platygastroidea: Scelionidae), Journal of Natural History 54 (13 - 14), pp. 813-917 : 861-863

Baeus krumbiegeli Veenakumari , sp. n. ( Figures 16 (a–d) and 39(c))

http://www.zoobank.org/ urn:lsid:zoobank.org:act:1801271D-41D0-4D90-BD2D-D5D69ECA5241

Holotype. Female; body length = 0.67 mm (0.61–0.72); n = 5

Colour ( Figure 16 (a)). Frons and vertex yellowish brown; mesoscutum and metasoma dark brown; mesoscutellum and propodeum paler than mesoscutum; hyperoccipital carina black; mesoscutum and mesoscutellum with a black band along posterior margin; A1 brown, apically yellow; A2–A6 dark brown; clava yellow with black tips; legs yellowish brown.

Head ( Figure 16 (a–d)). Head 1.14 (1.10–1.21)× as wide as high; IOS 0.42 (0.38–0.45)× width of head and 1.06 (0.98–1.11)× eye length; eye large (L: W = 13.0:15.5) not setose, touching hyperoccipital carina posteriorly; head height 2.04 (1.89–2.10)× eye length; POL>LOL in ratio of 18.0:10.6; lateral ocellus contiguous with orbit; distance between posterior margin of lateral ocellus from hyperoccipital carina 1.10 (1.05–1.13)× MOD; pilosity sparse, setae short; interantennal process triangular, rugose; central keel reaching 0.54 (0.51–0.58)× distance to median ocellus; facial striae long, extending 0.60 (0.56–0.63)× the length from mandibular end to lower orbit; malar striae weak; frons adjacent to central keel with longitudinal reticulations; upper frons and vertex weakly reticulate; gena smooth, with foveae on postero-ventral margin, 4.02 (3.9–4.05)× as long as wide; anterior margin of gena in contact with 0.50 (0.48–0.53)× length of ventral margin of eye; length of A1 subequal to that of clava; length of A2 0.39 (0.36–0.41)× that of A1.

Mesosoma ( Figures 16 (a,c,d) and 39(c)). Mesoscutum and mesoscutellum 0.34 (0.32–- 0.39)× and 0.18 (0.15–0.19)× as long as wide, respectively; mesoscutum and mesoscutellum finely imbricate, with postero-medial margin of mesoscutum and posterior margin of mesoscutellum smooth; scutes wider than long on mesoscutellum; metascutellum not visible; propodeum smooth dorsally, 0.60 (0.57–0.63)× length of mesoscutellum medially; pilosity sparse and setae short; antero-lateral margin of mesoscutellum with a fovea; lateral pronotal area dorsally coriaceous reticulate-striate, remainder smooth except for sparse weak transverse striae antero-medially; postero-dorsal margin of lateral pronotal area with two short, weak projections; ventral margin of lateral pronotal area extending as a blunt projection; transverse carinae on dorsal mesopleuron extend up to the level of dorsal metapleuron; mesopleuron ventrally with a coriaceous reticulate patch, followed by a semicircular carina, remainder smooth; mesopleuron extending as a long, narrow, smooth projection ventrally; mesopleural pit not distinct; metapleuron smooth with weak striae and shallow foveae ventrally; posterior suture of metapleuron almost straight; dorsal level of posterior metapleural suture dorsal to level of antero-lateral margin of T 2; sculpturing of propodeum anterior to spiracle transversely carinate, region posterior to spiracle smooth with a transverse carina ventrally; region ventral to spiracle with a transverse carina; remainder of lateral propodeum smooth with two weak transverse carinae anteroventrally; propodeal spiracular opening round.

Metasoma ( Figure 16 (a,c,d)). Metasoma 0.86 (0.80–0.98)× as long as wide; pilosity sparse and setae short; T 2 anteriorly finely reticulate, posteriorly smooth; remaining tergites smooth.

Material examined. Holotype: Female ( ICAR / NBAIR / P3065 ), INDIA: Karnataka: Bengaluru, Jarakabande Kaval , 13 ° 05 ʹ 41 ʹ ’ N 77 ° 32 ʹ 35 ʹ ’E, 921 m, MT, 17.XII.2013 ; Paratypes: 2 females ( ICAR / NBAIR / P3066 – P3067 ), Tamil Nadu: Dindugul, Thandikudi, RCRS, 10 ° 18 ʹ 34 ʹ ’ N 77 ° 38 ʹ 34 ʹ ’E, 1305 m, YPT, 26 . VI .2015; 2 females ( ICAR / NBAIR / P3068 – P3069 ), Tamil Nadu: Lower Pulney Hills , Thadiyankudisai, HRS, 10 ° 17 ʹ 58 ʹ ’ N 77 ° 42 ʹ 42 ʹ ’E, 990 m, YPT, 26 . VI . 2015; 4 females ( ICAR / NBAIR / P3070 – P3073 ), same as P3066, 27 .XI .2016; 1 female ( ICAR / NBAIR / P3074 ), Odisha: Bhubaneswar, OUAT, 20 ° 15 ʹ 52 ʹ ’ N 85 ° 48 ʹ 50 ʹ ’E, 45 m, YPT, 31 .I .2016; 2 females ( ICAR / NBAIR / P3075 – P3076 ), Tamil Nadu: Dharmapuri, Hosur , Uddanapalli, 12 ° 37 ʹ 28 ʹ ’ N 77 ° 55 ʹ 29 ʹ ’E, 758 m, MT, 17 .I .2015; 1 female ( ICAR / NBAIR / P3077 ), same as P3075, YPT, 02 .XII .2014; 1 female ( ICAR / NBAIR / P3078 ), Tamil Nadu: Dharmapuri, Kelamangalam, Jakkeri , 12 ° 42 ʹ 17 ʹ ’ N 77 ° 48 ʹ 37 ʹ ’E, 899 m, YPT, 02 .II .2015; 4 females ( ICAR / NBAIR / P3079 – P3082 ), same as P3075, 08 .XII .2014; 1 female ( ICAR / NBAIR / P3083 ), Tamil Nadu: Coimbatore, TNAU, 11 ° 00 ʹ 55 ʹ ’ N 76 ° 56 ʹ 12 ʹ ’E, 434 m, YPT, 03 . VI .2015; 1 female ( ICAR / NBAIR / P3084 ), Tamil Nadu: Periyakulam , 8 ° 59 ʹ 13 ʹ ’N 76 ° 82 ʹ 67 ʹ ’E, 53 m, YPT, 17 .VIII .2013; 1 female ( ICAR / NBAIR / P3085 ), Tamil Nadu: Chidambaram, Annamalai University , 11 ° 23 ʹ 30 ʹ ’ N 79 ° 42 ʹ 48 ʹ ’E, 7 m, YPT, 02 .VII .2016; 1 female ( ICAR / NBAIR / P3086 ), Tamil Nadu: Dharmapuri, Hosur, Uddanapalli , 12 ° 37 ʹ 28 ʹ ’ N 77 ° 55 ʹ 29 ʹ ’E, 758 m, MT, 03 .XI .2015; 1 female ( ICAR / NBAIR / P3087 ), Karnataka: Mudigere, College of Horticulture , 13 ° 06 ʹ 54 ʹ ’ N 75 ° 37 ʹ 57 ʹ ’E, 976 m, YPT, 02 .X .2015; 1 female ( ICAR / NBAIR / P3400 ), Karnataka: Bengaluru: Audogodi, National Institute of Animal Nutrition and Physiology ( NIANP), 12 ° 56 ʹ 51 ʹ ’ N 77 ° 36 ʹ 31 ʹ ’E, 890 m, YPT, 25 .I .2014; 1 female ( ICAR / NBAIR / P3401 ), Karnataka: Bengaluru, Attur , 13 ° 05 ʹ 48 ʹ ’ N 77 ° 33 ʹ 59 ʹ ’E, 936 m, PFT, 02 .XII .2010.

Etymology. This species is named after Gustav Hermann Krumbiegel the German botanist who designed and planned gardens and avenues in Bengaluru, the type locality of the specimens. The name is treated as a noun in the genitive case.

Diagnosis. B. krumbiegeli sp. n. is closer to B. mareecha sp. n. and B. arachnophagus sp. n. IOS is wider in B. krumbiegeli sp. n. than B. mareecha sp. n. and it is equal to eye length in the former while it is around half the eye length in the latter; upper frons weakly reticulate and gena smooth in B. krumbiegeli sp. n. whereas upper frons is coriaceous reticulate and gena reticulate in B. mareecha sp. n.; scutes are larger in B. krumbiegeli sp. n. than in B. mareecha sp. n. The differences between B. krumbiegeli sp. n. and B. arachnophagus sp. n. are mentioned under the latter.

Figures

Figure 16. Baeus krumbiegeli sp. n. (a) Habitus (colour); (b) Frons; (c) Habitus (lateral view) (d) Habitus.