Baeus acuminatus 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 : 829-831

publication ID

https://doi.org/ 10.1080/00222933.2020.1770885

publication LSID

lsid:zoobank.org:pub:878C5BFB-C2CB-4163-A08B-C761B4C6F087

persistent identifier

https://treatment.plazi.org/id/03B5091F-6617-FFEA-4B71-FF1DD0E3956B

treatment provided by

Carolina

scientific name

Baeus acuminatus Veenakumari
status

sp. nov.

Baeus acuminatus Veenakumari , sp. n. ( Figure 1 View Figure 1 (a–e))

http://www. zoobank.org/ urn:lsid:zoobank.org:act:4229DB10-EA24-4099-B79B-42060EF815B3

Holotype. Female; body length = 0.76 (0.64–0.89) mm; n = 8

Colour ( Figure 1 View Figure 1 (a)). Head and mesosoma brownish black, metasoma darker than mesosoma; hyperoccipital carina black; A1 brown with extremities yellowish brown, A2 dark brown, A3–A6 yellowish brown, clava dark brown; legs yellowish brown.

Head ( Figure 1 View Figure 1 (a–e)). Head 1.14 (1.1–1.21)× as wide as high; IOS 0.58 (0.54–0.62)× width of head, 1.6 (1.54–1.71)× eye length; eye (L: W = 11.2:10.71) setose, not touching hyperoccipital carina posteriorly; head height 2.41 (2.21–2.60)× eye length; POL>LOL in ratio of 17.8:9.2; lateral ocellus away from orbits, OOL 0.30 (0.29–0.31)× MOD; distance between posterior margin of lateral ocellus from hyperoccipital carina 1.40 (1.38–1.42)× MOD; pilosity of moderate density, setae of medium length, shorter than those on mesonotum and metasoma; interantennal process triangular, weakly rugose; central keel short, raised, reaching 0.30 (0.28–0.36)× distance to median ocellus; facial striae extending 0.55 (0.51–- 0.58)× the length from mandibular end to lower orbit; malar striae weak; lower frons adjacent to central keel smooth, followed by a reticulate patch; vertex smooth; gena smooth, 3.30 (3.12–3.4)× as long as wide; anterior margin of gena in contact with 0.71 (0.68–0.74)× length of ventral margin of eye; length of A1 subequal to that of clava; length of A2 0.45 (0.41–0.48)× that of A1.

Mesosoma ( Figure 1 View Figure 1 (a,c,e)). Mesoscutum and mesoscutellum 0.50 (0.42–0.58)× and 0.13 (0.11–0.21)× as long as wide, respectively; mesoscutum smooth except for a anterolateral coriaceous reticulate patch ( Figure 1 View Figure 1 (c)); mesoscutellum smooth; metascutellum narrow, smooth; propodeum smooth dorsally, 0.62 (0.55–0.64)× length of mesoscutellum medially; pilosity of moderate density, setae long; lateral pronotal area dorsally imbricate, densely setose, remainder predominantly smooth except for sparse weak transverse striae posterad; dorso-lateral pronotum extending laterally as a broad prominent spine ( Figure 1 View Figure 1 (c)); ventral margin of lateral pronotal area extending as a short blunt projection; transverse carinae on dorsal mesopleuron extend up to level of dorsal metapleuron; mesopleuron ventrally weakly sculptured, remainder smooth; mesopleuron extending as a narrow, sharp, projection ventrally; mesopleural pit small; metapleuron smooth except for sparse shallow foveae ventrally; posterior suture of metapleuron almost straight and bending towards mesopleuron dorsally, but not touching the posterior mesopleural suture; dorsal level of posterior metapleural suture almost level with antero-lateral margin of T 2; metapleuron antero-ventrally extending as a blunt projection; sculpturing of propodeum anterior to propodeal spiracle with two short transverse carinae, region posterior to spiracle smooth; region ventral to spiracle with two transverse carinae with setae on them; remainder of lateral propodeum smooth with sparse transverse carinae; propodeal spiracle opening tear-drop shaped.

Metasoma ( Figure 1 View Figure 1 (a,c,e)). Metasoma 0.94 (0.85–0.98)× as long as wide; pilosity of medium density, setae long; T 2 smooth; remaining tergites also smooth.

Material examined. Holotype: Female ( ICAR / NBAIR / P2721 ), INDIA: Rajasthan: Udaipur, Badagaon , Krishi Vigyan Kendra ( KVK), 24 ° 38 ʹ 11 ʹ ’ N 73 ° 40 ʹ 48 ʹ ’ E, 178 m, YPT, 24.IX.2016 ; Paratypes: 14 females ( ICAR / NBAIR / P2722 P2735 ), same as holotype; 1 female ( ICAR / NBAIR / P2736 ), Rajasthan: Udaipur, Maharana Pratap University of Agriculture and Technology ( MPUAT), 24 ° 36 ʹ 02 ʹ ’ N 73 ° 44 ʹ 21 ʹ ’E, 583 m, YPT, 23 .IX .2016; 29 females ( ICAR / NBAIR / P2737 P2765 ), Arunachal Pradesh: Pasighat, College of Horticulture and Forestry (CHF), 28 ° 04 ʹ 28 ʹ ’ N 95 ° 19 ʹ 28 ʹ ’E, 173 m, YPT, 03–10 . V .2014; 4 females ( ICAR / NBAIR / P2766 P2769 ), same as P2737, 10–14 .XI .2014; 1 female ( ICAR / NBAIR / P2770 ), Andaman Islands: South Andaman, Garacharma, Central Island Agricultural Research Institute , ( CIARI), 11 ° 61 ʹ 29 ʹ ’N 92 ° 71 ʹ 54 ʹ ’E, 63 m, YPT, 26 .I .2013; 1 female ( ICAR / NBAIR / P2771 ), same as P2770, 22 .II .2012; 2 females ( ICAR / NBAIR / P2722 P2723 ), Tamil Nadu: Dharmapuri, Hosur , Uddanapalli, 12 ° 37 ʹ 28 ʹ ’ N 77 ° 55 ʹ 29 ʹ ’E, 758 m, MT, 11 . VI .2015; 3 females ( ICAR / NBAIR / P2774 P2776 , P2778 ), Goa: Old Goa, Ela, Central Coastal Agricultural Research Institute ( CCARI), 15 ° 29 ʹ 52 ʹ ’ N 73 ° 55 ʹ 00 ʹ ’E, 15 m, YPT, 17 .VII .2015; 1 female ( ICAR / NBAIR / P2777 ), Goa: Carambolim, KVK, CCARI, 15 ° 29 ʹ 53 ʹ ’ N 73 ° 55 ʹ 25 ʹ ’E, 15 m, YPT, 14 .VII .2015; 11 females ( ICAR / NBAIR / P2779 P2789 ), Tamil Nadu: Vellore, Yelagiri , 12 ° 34 ʹ 43 ʹ ’ N 78 ° 39 ʹ 46 ʹ ’E, 969 m, YPT, 15–18 . VI .2016; 4 females ( ICAR / NBAIR / P2790 P2793 ), Odisha: Bhubaneswar, Orissa University of Agriculture and Technology ( OUAT), 20 ° 15 ʹ 52 ʹ ’ N 85 ° 48 ʹ 50 ʹ ’E, 45 m, YPT, 29 .I .2016; 8 females ( ICAR / NBAIR / P2794 P2801 ), Tamil Nadu: Dharmapuri, Hosur , Uddanapalli, 12 ° 37 ʹ 28 ʹ ’ N 77 ° 55 ʹ 29 ʹ ’E, 758 m, MT, 18 . V .2015; 10 females ( ICAR / NBAIR / P2802 P2811 ), same as P2794, YPT, 29 .XI .2014; 6 females ( ICAR / NBAIR / P2812 P2817 ), same as P2802, 02 .XII .2014; 1 female ( ICAR / NBAIR / P2818 ), same as P2794, 17 .I .2015; 4 females ( ICAR / NBAIR / P2819 P2822 ), Tamil Nadu: Dharmapuri, Kelamangalam, Jakkeri , 12 ° 42 ʹ 17 ʹ ’ N 77 ° 48 ʹ 37 ʹ ’E, 899 m, YPT, 03–16 . III .2015; 3 females ( ICAR / NBAIR / P2823 P2825 ), same as P2794, YPT, 31 .I .2015; 1 female ( ICAR / NBAIR / P2826 ), same as P2794, MT, 27 .IV .2015; 1 female ( ICAR / NBAIR / P2827 ), same as P2794, YPT, 03 .II .2016; 13 females ( ICAR / NBAIR / P2828 P2840 ), Tamil Nadu: Yercaud, HRS, 11 ° 47 ʹ 44 ʹ ’ N 78 ° 12 ʹ 42 ʹ ’E, 1399 m, YPT, 04 .VIII .2014; 5 females ( ICAR / NBAIR / P2841 P2843 , P2845 , P2846 ), same as P2828, 04–06 .VIII .2016; 2 females ( ICAR / NBAIR / P2844 , P2853 ), Assam: Jorhat, Assam Agriculture University , 26 ° 43 ʹ 20 ʹ ’ N 94 ° 11 ʹ 33 ʹ ’E, 98 m, YPT, 24 .II .2017; 4 females ( ICAR / NBAIR / P2847 P2850 ), 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 / P2851 ), Tamil Nadu: Kodaikanal, Shenbaganur , 10 ° 14 ʹ 01 ʹ ’ N 77 ° 30 ʹ 47 ʹ ’E, 1865 m, YPT, 02 .IV .2014; 1 female ( ICAR / NBAIR / P2852 ), Tamil Nadu: Udagamandalam, IISWC, 11 ° 24 ʹ 00 ʹ ’ N 76 ° 40 ʹ 13 ʹ ’E, 2224 m, YPT, 06 . VI .2015; 1 female ( ICAR / NBAIR / P2854 ), Assam: Dibrugarh , Krishi Vigyana Kendra ( KVK), 27 ° 47 ʹ 28 ʹ ’N 94 ° 91 ʹ 19 ʹ ’E, 109 m, YPT, 07 .XI .2014; 1 female ( ICAR / NBAIR / P2855 ), Tripura: Agartala , Tripura University ( TU), 23 ° 76 ʹ 28 ʹ ’ N 91 ° 26 ʹ 33 ʹ ’E, 17 m, YPT, 03 .III .2016; 1 female ( ICAR / NBAIR / P2856 ), Karnataka: Bengaluru, Hessaraghatta , 13 ° 08 ʹ 01 ʹ ’ N 77 ° 29 ʹ 27 ʹ ’E, 859 m, SN, 22 .VIII .2013; 1 female ( ICAR / NBAIR / P2857 ), Karnataka: Chikkaballapur, Nandi Hills , 13 ° 37 ʹ 02 ʹ ’N 77 ° 68 ʹ 34 ʹ ’E, 1448 m, YPT, 01 . XI .2013; 1 female ( ICAR / NBAIR / P2858 ), Karnataka: Bengaluru, Attur , 13 ° 05 ʹ 48 ʹ ’ N 77 ° 33 ʹ 59 ʹ ’E, 936 m, YPT, 23 .VIII .2013; 1 female ( ICAR / NBAIR / P2859 ), same as P2858, 05 . XI .2013; 1 female ( ICAR / NBAIR / P2860 ), Karnataka: Bengaluru, Jarakabande Kaval , 13 ° 05 ʹ 41 ʹ ’ N 77 ° 32 ʹ 35 ʹ ’E, 921 m, MT, 22 . V .2015; 1 female ( ICAR / NBAIR / P2861 ), Karnataka: Mudigere, College of Horticulture , 13 ° 06 ʹ 54 ʹ ’ N 75 ° 37 ʹ 57 ʹ ’E, 976 m, YPT, 30 .IX .2015; 2 females ( ICAR / NBAIR / P2862 , P2866 ), Tamil Nadu: Yercaud, HRS, 11 ° 47 ʹ 44 ʹ ’ N 78 ° 12 ʹ 42 ʹ ’E, 1399 m, YPT, 05 .VIII .2014; 1 female ( ICAR / NBAIR / P2863 ), Karnataka: Bengaluru, Hessaraghatta , 13 ° 08 ʹ 01 ʹ ’ N 77 ° 29 ʹ 27 ʹ ’E, 859 m, YPT, 17 .IX .2016; 1 female ( ICAR / NBAIR / P2864 ), Meghalaya, Umiam, ICAR Research Complex for NEH Region , 25 ° 40 ʹ 52 ʹ ’ N 91 ° 54 ʹ 56 ʹ ’E, 970 m, YPT, 08 . VI .2013; 1 female ( ICAR / NBAIR / P2865 ), Assam: Guwahati, Rani, NRC for Pigs , 26 ° 01 ʹ 51 ʹ ’ N 91 ° 34 ʹ 24 ʹ ’E, 59 m, YPT, 06 .XI .2017; 1 female ( ICAR / NBAIR / P3402 ), Karnataka: Kanakapura , 12 ° 32 ʹ 46 ʹ ’ N 77 ° 25 ʹ 11 ʹ ’E, 640 m, YPT, 22 .IV .2015; 1 female ( ICAR / NBAIR / P3403 ), Tamil Nadu: Udagamandalam, near Emerald Lake , 11 ° 19 ʹ 56 ʹ ’ N 76 ° 37 ʹ 10 ʹ ’E, 1982 m, YPT, 19 .II .2016; 1 female ( ICAR / NBAIR / P3404 ), Tamil Nadu: Dharmapuri, Hosur, Uddanapalli , 12 ° 37 ʹ 28 ʹ ’ N 77 ° 55 ʹ 29 ʹ ’E, 758 m, MT, 11 . VI.2015.

Etymology. The epithet ‘acuminatus’ refers to the sharp spine on dorso-lateral pronotum. The name is treated as an adjective.

Diagnosis. Baeus acuminatus sp. n. is different from all other Oriental species of Baeus because of the presence of following combination of character states: head, mesonotum and metasoma smooth except for the antero-lateral coriaceous reticulate patch on mesoscutum, dorso-lateral pronotum extending as a prominent spine and presence of long setae on mesoscutum and metasoma.

IOS

Institute of Oceanographic Sciences

MOD

University of Modena and Reggio Emilia, Department of Biology

T

Tavera, Department of Geology and Geophysics

V

Royal British Columbia Museum - Herbarium

MT

Mus. Tinro, Vladyvostok

VI

Mykotektet, National Veterinary Institute

HRS

Southwestern Adventist University

TNAU

Tamil Nadu Agricultural University

TU

Tulane University, Museum of Natural History

NRC

Division of Biological Sciences, National Research Council of Canada

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Scelionidae

Genus

Baeus

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