Ramya megatrium Rajgopal, 2025

Ramya megatrium Rajgopal gen. et sp. nov.

urn:lsid:zoobank.org:act:266FECF0-768B-4EC2-A8F7-D0729D0B8515

Figs 3F–J View Fig , 4 View Fig

Differential diagnosis

The coloration closely resembles that of R. longiprocessus Rajgopal gen. et sp. nov. but it is less pronounced, with paler markings on the crown, thoracic dorsum, mesonotum, and scutellum in R. megatrium Rajgopal gen. et sp. nov., the male genitalia characters readily separate R. megatrium from R. longiprocessus , the male pygofer ventral process is curved dorsally and recurved ventrally, the aedeagal shaft without flanges, atrium greatly enlarged, segment X short and sclerotized, while in R. longiprocessus the pygofer ventral process is straight, the aedeagal shaft with lateral and dorsal flanges, atrium not enlarged, segment X long, tubular, lateral and dorsal anterior band sclerotized.

Etymology

The specific name ‘ megatrium ’, a compound from Greek ‘mega’ (large) and Latin ‘ atrium ’ (atrium), which refers to the greatly enlarged atrium. It is a noun in apposition.

Material examined

Holotype

INDIA – Himachal Pradesh • ♂; Kinnaur, Sharbu ; 31.5372° N 78.2758° E; 14 Aug. 2017; Rajgopal N.N. leg.; Hg light; NPC. GoogleMaps

Description

HEAD AND THORAX. Small to medium-sized (4.62 mm) leafhoppers. Crown flat, 2 × as wide as long. Pronotum 2.3 × as wide as long medially ( Fig. 4A–B View Fig ). Crown, thoracic dorsum, mesonotum, and scutellum with paler markings, crown with short outwardly curved stripe on either side of median line broken into spots. Forewing outer ante-apical cells with accessory cross veins. Profemur row AV with 14 short, stout peg-like setae, intercalary row (IC) with 13 hair-like setae ( Fig. 3F–I View Fig ).

Male

MEASUREMENTS. 4.62 mm long, 1.16 mm wide across eyes, 1.18 mm wide across lateral margins of pronotum and 0.96 mm wide across posterolateral angles of pronotum.

GENITALIA. Pygofer 1.6 × as long as wide, with elongated blade-like ventral process curved dorsally and recurved ventrally ( Fig. 4E–F View Fig ). Subgenital plate 2.5× as long as wide, outer margin concave, apex rounded ( Fig. 4G View Fig ). Style 2.5× as long as wide, apophysis apex pointed ( Fig. 4H View Fig ). Connective stem 1.5× as long as lateral arms ( Fig. 4K View Fig ). Aedeagus short, stout, curved dorsally, shaft very small, apex hood-like ( Fig. 4I, K View Fig ), pre-atrium reduced; atrium greatly enlarged, about as long as shaft in lateral view ( Fig. 4I View Fig ). Segment X short, sclerotized.

Female

Unknown.

Distribution

India: Himachal Pradesh.