Indosticta (Tol, Van 2016)
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Ordo: Odonata
Familia: Platystictidae
Name
Indosticta Tol, Van, 2016 – Wikispecies link – Pensoft Profile
- Indosticta Tol, Van, 2016, Zootaxa 4182: 77-77.
Materials Examined
Type species.Platysticta deccanensis Laidlaw, 1915, by present designation.
Description
Description. Large damselflies, with general characteristics of the family Platystictidae. Thorax dark brown to brick red on dorsum and sides, changing to golden yellow lower on sides and pale yellow beneath. In females only, thorax marked with narrow azure blue antehumeral stripes, convex inward and not extending to upper part of thorax, a second light blue stripe on mesepimeron. Anterior lobe of prothorax white in both sexes, only slightly brown distally. Paired bulges of median prothoracic lobe evenly rounded, posterior margin of posterior prothoracic lobe gently and evenly upturned, with a thickened dark brown margin. Abdomen dark brown to black dorsally, with azure blue markings on dorsum of S8 and S 9 in male and with a large oval pale blue lateral spot on each side of S 9 in female. Superior anal appendages of male broad at base, constricted at about the middle, with a robust obtuse spine dorsally on inner side, then broadened and somewhat spatulate in apical half, which is curled down and hollowed out. Inferior anal appendages nearly as long as superior pair, broad at base, then tapered as far as apex, which ends in an obtuse inward turned point. Terminal segment of genital ligula divided into a pair of horns apically, with cleft between them wide and straight. Ligula widened at base of horns. Horns short, less than half length of segment, ending in a short bifid structure. Wings closed when at rest, long, narrow, hyaline to palely enfumed in older animals and females, but never with distinct dark coloured apices. Forewings with 17 − 21 Px and hindwings with 16½ − 19 Px. Two Ax crossveins and one pcv vein. Y vein shortly stalked. Discoidal cell elongate, with costal border about four times as long as proximal border. Arculus distal to Ax2, R4+5 well proximal to subnodus. Vein IR3 markedly zigzagged in middle of wings, separates from R4+5 at level of first crossvein distal to arculus. Vein R3 originates in proximal half of wing at level of Px 4 − 5. Vein IR2 also markedly zigzagged. CuP reaching hind margin of forewing at level between Px 4 − 5, in hindwing approximately at level of Px 5 − 6. Number of cells between Arc and place where CuP meets hind margin of hindwing 9 − 10 in forewing and 11 − 12 in hindwing. Pterostigma dark red to blackish in colour, framed finely in light yellow and with heavy black veins, covering more than one cell.
Diagnosis
India Western Ghats
Etymology
Etymology.Indosticta a feminine noun, compounded from Indo -, reflecting the distribution of the only known species of the genus in the Western Ghats of India, and the suffix - sticta, meaning ‘spotted’, a common generic ending in the family.
Taxon Treatment
- Tol, Van; 2016: Taxonomy and molecular phylogeny of the Platystictidae of Sri Lanka (Insecta: Odonata), Zootaxa 4182: 77-77. doi
This treatment was originally uploaded by Plazi, compare this treatment on Plazi. Unless this treatment has been substantially changed on Species-ID, Plazi requests to maintain a link back to the original repository.
