Chelonus (Mirachelonus) melanogastrus, Ranjith & Priyadarsanan, 2023
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publication ID |
https://doi.org/ 10.11646/zootaxa.5278.3.3 |
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publication LSID |
lsid:zoobank.org:pub:1AAFCC5B-14BA-4E13-B25E-5C132CB9085A |
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DOI |
https://doi.org/10.5281/zenodo.7906583 |
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persistent identifier |
https://treatment.plazi.org/id/05808E2F-01E7-4340-8CD6-F3E365A8CF07 |
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taxon LSID |
lsid:zoobank.org:act:05808E2F-01E7-4340-8CD6-F3E365A8CF07 |
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treatment provided by |
Plazi |
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scientific name |
Chelonus (Mirachelonus) melanogastrus |
| status |
sp. nov. |
Chelonus (Mirachelonus) melanogastrus sp. nov.
( Figures 16–17 View FIGURE 16 View FIGURE 17 )
urn:lsid:zoobank.org:act:05808E2F-01E7-4340-8CD6-F3E365A8CF07
Material examined. Holotype, male, INDIA: Kerala, Kozhikode, Ambalappara , 11°32’46 N, 75°55’24 E, 726 m. a.s.l., 30.xii.2015, coll. A.P. Ranjith ( AIMB) GoogleMaps . Paratypes, 2 males with same data as holotype ( AIMB) GoogleMaps .
Description. Holotype, male, length of body 3.0 mm, of fore wing 2.2 mm.
Head. Antenna with 25 antennomeres, apical antennomeres not broadened, shorter than basal antennomeres; third antennomere 1.2 × longer than fourth; third, fourth and terminal antennomeres 2.3 ×, 1.9 × and 1.8 × longer than wide, respectively; head transverse ( Fig. 16B View FIGURE 16 ), in dorsal view roundly contracted behind eyes ( Fig. 16C View FIGURE 16 ); OOL: OD: POL= 2.3: 1.0: 1.4; longitudinal diameter of eye 1.5 × height of temples; vertex transversely striate ( Fig. 16C View FIGURE 16 ); frons distinctly concave, striate with a complete midlongitudinal carina ( Fig. 16C View FIGURE 16 ); occiput transversely striate ( Fig. 16C View FIGURE 16 ); temple longitudinally striate ( Fig. 16D View FIGURE 16 ); face longitudinally striate laterally, transversely striate anteriorly and posteriorly, rugose medially, densely setose in lateral view ( Fig. 16B View FIGURE 16 ); clypeus flat and sparsely punctate, smooth and shining ( Fig. 16B View FIGURE 16 ); length of malar space 2.3 × basal width of mandible.
Mesosoma. Length of mesosoma 1.3 × its height; pronotum rugose laterally ( Figs 16D–E View FIGURE 16 ); mesoscutum areolate-rugose, without longitudinal depressions medially ( Fig. 16F View FIGURE 16 ); notauli impressed as large pits ( Fig. 16F View FIGURE 16 ); transverse suture distinct, deep ( Fig. 16F View FIGURE 16 ); scutellar sulcus divided by three carinae ( Fig. 16F View FIGURE 16 ); scutellum reticulate-rugose with a midlongitudinal carina, sparsely setose, with crenulate groove laterally ( Fig. 16F View FIGURE 16 ); mesopleuron evenly convex, coarsely reticulate-rugose, setose ( Fig. 16E View FIGURE 16 ); metanotum crenulate with distinct midlongitudinal carina ( Fig. 17A View FIGURE 17 ); propodeum with medial and lateral tubercles, coarsely reticulate-rugose, transverse carina indistinct, but complete ( Fig. 17A View FIGURE 17 ).
Wings. Fore wing infuscate subapically ( Fig. 17E View FIGURE 17 ); length of fore wing 2.5 × its width; length of marginal cell 1.3 × pterostigma; vein 2-Rl present ( Fig. 17E View FIGURE 17 ); vein r shorter than 3-SR ( Fig. 17E View FIGURE 17 ); r: 3-SR: SRl = 1.0: 1.5: 6.1; SRl more or less curved ( Fig. 17E View FIGURE 17 ); parastigma distinctly swollen ( Fig. 17E View FIGURE 17 ); 1-CU1: 2-CU1= 1.0: 3.2; vein CUlb present ( Fig. 17E View FIGURE 17 ).
Legs. Hind coxa with transverse wrinkles, densely short setose ( Fig. 17B View FIGURE 17 ); hind femur robust ( Fig. 17B View FIGURE 17 ); length of hind femur, tibia and basitarsus 3.2 ×, 3.5 × and 4.0 × their maximum width, respectively; mid and hind tibia with numerous short, pointed spines apical half
Metasoma. Metasomal carapace elongate-oval in dorsal view, coarsely reticulate-rugose, with a pair of midlongitudinal carinae basally ( Fig. 17C View FIGURE 17 ); length of carapace 3.1 × its maximum width in dorsal view; carapace with lamella laterally ( Fig. 17B View FIGURE 17 ); ventral cavity closed apically ( Fig. 17D View FIGURE 17 ); carapace truncate apically with a rather small round aperture and narrow in dorsal view ( Fig. 17D View FIGURE 17 ), apex of carapace deeply incurved ventrally in lateral view ( Fig. 17B View FIGURE 17 ).
Colour. Black except eyes grey, antenna, ocelli, mandible, maxillary and labial palps, venation, pterostigma, legs brownish yellow to dark brown.
Female. Unknown.
Biology. Unknown.
Distribution. India (Kerala).
Etymology. The species is named after the black coloured metasoma.
Comparative diagnosis. This is the first distribution record of the subgenus from India. The new species differs from the type species of the subgenus ( C. (M.) miraventris ) in having carapace without yellow spot (with yellow spot in C. (M.) miraventris ), face irregularly sculptured medially (striate-rugose in C. (M.) miraventris ), third and fourth antennomeres 2.3, 1.9 × as long as wide respectively (3.2 × in C. (M.) miraventris ), OOL 1.6 × POL (1.1 in C. (M.) miraventris ), longitudinal diameter of eye 1.5 × height of temples (2.3 × in C. (M.) miraventris ), hind tibia 3.5 × as long as wide (4.5 × in C. (M.) miraventris ).
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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