Cremastobaeus suvarnadeha Veenakumari, 2017

Kamalanathan, Veenakumari & Mohanraj, Prashanth, 2017, The genus Cremastobaeus Ashmead (Hymenoptera: Scelionidae: Cremastobaeini) from India, Journal of Natural History 51 (33 - 34), pp. 1989-2056 : 2032-2034

Cremastobaeus suvarnadeha Veenakumari sp. nov.

( Figure 20 (a–h))

www.zoobank.org/ urn:lsid:zoobank.org:act:EAA57D3C-86D8-4125-B95F-475F99A4A2AA

Holotype: Female. Body length = 1.48 mm; (m = 1.41 (1.24–1.50) mm, SD = 0.07, n = 10)

Colour ( Figure 20 (a))

Head black; mesosoma and metasoma golden brown; A1–A5 yellow with patches of brown, A6–A8 darker than preceding antennomeres; clava dark brown; eyes black; mandibles yellow-brown; legs pale yellow.

Head ( Figure 20 (b,d,e))

FCI = 1.41; LCI = 0.96; IOS 0.41× width of head; POL>LOL in ratio of 6.9:5.1; lateral ocellus almost contiguous with inner orbit; eye large (L:W = 20.8:18.9), with not so dense white setae; frontal depression with short, weak, transverse striae; vertex and gena coriaceous reticulate; length and width of antennomeres A1–A 8 in ratio of 15.2:4.5, 6.3:3.7, 6.0:3.3, 5.0:2.6, 4.6:2.5, 3.7:3.2, 3.1:3.9, respectively; length and width of clava 18.0:8.8; radicle 0.19× as long as A1.

Mesosoma ( Figure 20 (d, f–h))

Mesoscutum (L:W = 23.3:24.5) finely reticulate, with long setae; lateral pronotal area weakly reticulate with sparse striae ventrally; netrion weakly reticulate, foveae on anterior margin very distinct; speculum with a single transverse stria, remainder smooth; mesepimeral sulcus foveate, foveae shallow; mesopleural depression predominantly smooth; ventral mesopleuron weakly reticulate; entire metapleuron predominantly smooth except for few sparse striae ventrally; paracoxal sulcus foveate, foveae shallow; mesoscutellum (L:W = 8.8:15.7) semicircular, reticulate, setose with black spots; posterior mesoscutellar sulcus foveate; metascutellum triangular (L:W = 4.4:8.1), smooth with no setae; metanotal trough foveate with a projection towards metascutellum; propodeum medially excavate accommodating posterior end of metascutellum; lateral propodeal area weakly reticulate, setose; propodeal spiracle very distinct; fore wing (L: W = 92.0:31.1) and hind wing (L:W = 77.6:11.1) hyaline with dense microtrichia; length of marginal cilia of fore wing and hind wing 0.12× and 0.43× width of their wings, respectively; length of submarginalis: marginalis: stigmalis: postmarginalis in ratio of 36.1:5.8:8.4:30.1, respectively.

Metasoma ( Figure 20 (c))

(L:W = 71.7:28.5); T1 costate; T2 with anterior margin smooth beneath which basal foveae present extending further as costae; T3 with a broad smooth upper margin with short basal foveae followed by striations extending three-quarters length of tergite; T3 postero-medially smooth; T4 same as T3; T5 anteriorly weakly costate, remainder weakly reticulate; remaining tergites reticulate; length and width of tergites T1–T 7 in ratio of 11.4:13.7, 13.8:21.8, 13.9:28.0, 13.5:27.0, 8.4:23.2, 6.4:16.2, 4.5:6.3, respectively; T3 longest of all tergites; T2 and T3 subequal in length.

Male

Unknown.

Material examined

Holotype: Female ( ICAR / NBAIR / P1062 ), INDIA: Andaman and Nicobar islands: Great Nicobar, Campbell Bay , 7.0077°N, 93.9147°E, 13 m, YPT, 22.III.2016, KV . Paratypes: 9 females, ( ICAR / NBAIR /P1063, P1064, P1065, P1066, P1067, P1068, P1069, P1070, P1071), same data as holotype, KV.

Etymology

This species is named ‘ suvarnadeha ’, which means ‘golden body’ in Sanskrit referring to the golden colour of the meso- and metasoma. The name is treated as a noun in apposition.

Diagnosis

This species is distinct from all others because of the combination of the following character states: smooth metascutellum, T1 shorter than either T2 or T3 and golden brown mesosoma and metasoma.

Figures

Figure 20. Bright field images of Cremastobaeus suvarnadeha sp. nov. (female) (a) Habitus (dorsal view); (b) frons; (c) metasoma; (d) head and mesosoma; (e) antennae; (f) pleuron; (g) wings; (h) meso- and metascutellum.