Trigastrotheca carinata Ranjith, 2024
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publication ID |
https://doi.org/ 10.3897/zookeys.1205.125014 |
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publication LSID |
lsid:zoobank.org:pub:CB5CEA6F-6527-4F21-9957-5A32B7179AB5 |
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DOI |
https://doi.org/10.5281/zenodo.12210539 |
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persistent identifier |
https://treatment.plazi.org/id/F747A595-E9F5-4EE3-A958-CE3EBD047B2A |
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taxon LSID |
lsid:zoobank.org:act:F747A595-E9F5-4EE3-A958-CE3EBD047B2A |
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treatment provided by |
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scientific name |
Trigastrotheca carinata Ranjith |
| status |
sp. nov. |
Trigastrotheca carinata Ranjith sp. nov.
Figs 5 View Figure 5 , 6 View Figure 6
Type material.
Holotype ♀, India: Kerala, Palakkad, Silent Valley , 17. iv. 2018, Malaise trap, coll. Sinu P. A. ( AIMB).
Diagnosis.
Similar to T. braeti sp. nov. from Africa, in having the body including stemmaticum entirely ochreous yellow, but differs in the shape of the head with the eye only 2.1 × as long as temple in dorsal view. In addition, fore wing vein C + SC + R brown-yellow, fore wing veins r-rs and rs-m are not wavy, and the T 5 is relatively broader with deeper posterior emarginations and a more acute medio-posterior projection. Similar also to T. freidbergi sp. nov. but stemmaticum yellow and T 5 relatively far longer (Fig. 6 C View Figure 6 cf. Fig. 16 A View Figure 16 ).
Description.
Holotype female. Length of body 4.0 mm, fore wing 3.0 mm. Head. Antenna with 42 flagellomeres. Terminal flagellomere, short, sub-triangular, acuminate. First flagellomere 1.0 × longer than 2 nd and 3 rd, the latter 1.3 × longer than wide. Width of head: width of face: height of eye = 2.5: 1.4: 1.0. Face transversely striate-rugose; with weak mid-longitudinal ridge. Inter-tentorial distance 1.4 × longer than tentorio-ocular distance. Malar suture impressed. Malar space 2.1 × as long as basal width of mandible. Antennal sockets strongly produced. Frons strongly impressed behind antennal sockets, with mid-longitudinal carina. Shortest distance between posterior ocelli: transverse diameter of posterior ocellus: shortest distance between posterior ocellus and eye = 1.0: 1.0: 2.1. Mesosoma 1.4 × longer than high. Mesoscutum rugose; notauli not impressed except very short anterior part with few weak crenulations. Scutellar sulcus shallow, narrow, finely crenulate, very shallow posteriorly. Scutellum sparsely punctate, setose without small pit medially behind sulcus. Median area of metanotum with complete mid-longitudinal carina. Propodeum faintly rugose; mid-longitudinal carina complete, lamelliform, bordered narrowly by fine crenulations; posteriorly propodeum with short longitudinal carinae associated with longitudinal wrinkles. Wings. Fore wing. Lengths of fore wing veins r-rs: 3 RSa: 3 RSb = 1.0: 1.3: 4.5. Lengths of vein 2 RS: 3 RSa: rs-m = 1.0: 1.1: 1.0. Base of hind wing with sparse setae. Legs. Lengths of fore femur: fore tibia: fore tarsus = 1.1: 1.2: 1.0. Lengths of hind femur: hind tibia: hind tarsus = 2.0: 2.3: 1.0. Claws with small acutely pointed basal lobe. Metasoma. T 1 2.8 × wider than long. T 2 1.1 × as long as T 3. T 1 coriaceous. TT 1–5 with coarse reticulate sculpture. Second metasomal suture and basal grooves of TT 4 and 5 deep, strigose. T 5 with postero-lateral margin of convex, unevenly denticulate; medial protuberance acutely rounded posteriorly. Coloration. Body mostly yellow except antenna, apex of mandible, tarsi, ovipositor sheath brown.
Male. Unknown.
Distribution.
Oriental ( India).
Host.
Unknown.
Etymology.
The species is named after the presence of mid-longitudinal carina of frons which will separate the species from other Indian species.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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