Megatrigon nivalis, (Hull, 1964) (Hull, 1964) Doczkal & Radenković & Lyneborg & Pape, 2016
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publication ID |
https://doi.org/ 10.5852/ejt.2016.238 |
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DOI |
https://doi.org/10.5281/zenodo.14510418 |
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persistent identifier |
https://treatment.plazi.org/id/03EA327E-FFE5-EC13-FD53-EBE2FD7CFB6D |
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treatment provided by |
Valdenar |
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scientific name |
Megatrigon nivalis |
| status |
comb. nov. |
nivalis group
Diagnosis
Katepisternum posteriorly setose on full width (♂) or with a small gap above the ventral pile patch (♀). Anepisternal setae thick, glistening, without serration. Base of wing extensively bare of microtrichia, including parts of cells c, r 1, br, bm, cup, and narrow stripes along the longitudinal veins. The bare flat posterior margin of tergite 1 extensively microtrichiose. ♂: Sternite 4 with flat caudal lobes, entirely microtrichiose. Genital pouch about half as wide as abdominal segment 4 at anterior margin. Male genitalia ( Figs 10M View Fig , 11 View Fig M–N, 12L): posterior surstyle lobe directed caudally, fused with median surstyle lobe for most of its length, with a sharp ridge at the border with median lobe, apex of posterior lobe with a small hook. Median surstyle lobe setose on about the posterior 0.67 of outer and ventral surface, on median surface covered by microtrichia on most part and with a sharp longitudinal ridge near dorsal border on about posterior half. Cerci with blunt apex, ventral surface membraneous and without setae. Subepandrial sclerite strongly curved (in lateral view), and its anterior end sclerotized at the sides only, sclerotized but translucent in the middle, the posterior part microtrichiose on nearly full length, without trichiose pillow-like structure. Hypandrium with a moderately wide base in ventral view and narrow in lateral view, with a transverse bulge immediately anterior to the attachment of the phallus, without ‘shoulders’ between wide base and narrower distal half, apex slightly produced beyond ctenidium and blunt. Ejaculatory apodeme small. ♀: tergite 5 ( Fig. 8A, B View Fig :x) and sternite 5 with anteriorly directed setae, ovipositor with thick blunt setae and a dorsal subapical tooth ( Fig. 8C View Fig :y).
The nivalis group contains a single 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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Kingdom |
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Phylum |
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Class |
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Order |
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Family |
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SubFamily |
Eristalinae |
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Tribe |
Merodontini |
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Genus |