Integrative taxonomic review of the genus Rhodostrophia Hübner, 1823 and its allied genus Tanaotrichia Warren, 1893 (Lepidoptera: Geometridae) from the Western Himalaya Author Kumari, Shabnam Wildlife Institute of India, Chandrabani, Dehradun- 248001, Uttarakhand, India. Author Bandyopadhyay, Uttaran Wildlife Institute of India, Chandrabani, Dehradun- 248001, Uttarakhand, India. Author Uniyal, Virendra Prasad Wildlife Institute of India, Chandrabani, Dehradun- 248001, Uttarakhand, India. & Graphic Era (Deemed to be) University, Bell Road Clement Town, Dehradun- 248002, Uttarakhand, India. Author Chandra, Kailash Zoological Survey of India, M-Block, New Alipore, Kolkata- 700053, West Bengal, India. Author Hausmann, Axel Staatliche Naturwissenschaftliche Sammlungen Bayerns (SNSB) - Zoologische Staatssammlung München (ZSM), Münchhausenstrasse 21, D- 81247 Munich, Germany. text Zootaxa 2024 2024-10-07 5519 1 59 89 http://dx.doi.org/10.11646/zootaxa.5519.1.3 journal article 304540 10.11646/zootaxa.5519.1.3 5f7ee7e6-9230-4051-92ef-208e26e13652 1175-5326 13915528 5F625E12-7F89-46BC-A7DF-2111180CEB87 Genus Rhodostrophia Hübner, 1823 Rhodostrophia Hübner, 1823 , Verzeichnis bekannter Schmetterlinge : 300. Type species: Phalaena calabra Petagna, 1786 . Pellonia Duponchel, 1829 , in Godart & Duponchel, Histoire naturelle des Lépidoptères ou Papillons de France , 7 (2): 109. Type species: Phalaena vibicaria Clerck, 1759 . Delocharis Butler, 1883 , Proceedings of the Zoological Society of London : 172. Type species: Delocharis herbicolens Butler, 1883 . Apostates Warren, 1897 , Novitates zoologicae , 4: 214. Leptosidia Hampson, 1903 , Journal of the Bombay Natural History Society , 14: 653. Type species: Leptosidia araearia Hampson, 1903 . Genus description ( Prout 1913 ; Hausmann 2004 ; Cui et al. 2019 ; Rajaei et al. 2022a ) Adults are medium to large sized with 20–40 mm wingspan; antennae filiform in female, quadripectinate in male with long branches gradually decreasing in length towards the tips [ Fig. 3a : (i)]. Frons slightly convex or protruded. Labial palpi short, stout, forwardly or upwardly directed and hardly reaching the frons. Proboscis well developed. Foretibia with or without median epiphyses [ Fig. 3a : (iv)]. Midtibia with paired terminal spurs. Hindtibia [ Fig. 3a : (v)] with or without hair pencil (variable in length) at the femoro-tibial joint; a pair of terminal tibial spur and either a single or paired median spur in male while all the four spurs present in female; a single ‘pseudospur’ (of unknown function) is often present as a densely scaled, club or rod-shaped projection with rounded tip. Forewing with two areoles [except R. solitaria (Christoph, 1887) ], vein R1 originating from the apex of 1 st areole at its junction with the 2 nd areole, veins R2–R4 stalked, arising from the apex of the 2 nd areole just above the origin of R5 ( Rajaei et al. 2022a ); apex acute or falcate; outer margin obliquely straight or slightly curved; usually pale ochreous to yellow or ochreous-grey or brown with either darker, sometimes suffused or tinged with rose-red to deep rose-red transverse lines. Hindwing with Sc basally curved, Rs and M1 shortly stalked, M3 and CuA1 separate ( Rajaei et al. 2022a ). Apex round; outer margin rounded, sometimes slightly protruded at M3; mostly paler than the forewing with markings more or less similar as of forewing. Underside paler and with rose-red to reddish or ochreous-grey to brown suffusion or irrorations with markings mostly similar to the upper side. Male genitalia : Uncus elongated, slender, apically broader, setose, distal margin with a central concavity of varying depths, sometimes weekly sclerotised; the overall shape and characters diagnostic at the species level. Gnathos triangular, strongly sclerotised and medially elongated.Valva shape diagnostic, especially the characteristics of costal and distal margins; sacculus sclerotised, folded ventrad over the valva. Posterior margin of 8 th abdominal sternite bilobed and diagnostic. Aedeagus thin, elongated and curved; vesica membranous without cornuti or sometimes with small sclerotised patch having minute scobinations. Female genitalia : Papillae anales either rounded or ovally-elongated; ductus bursae sclerotised, sometimes strongly curved or bent, length (in comparison to corpus bursae) and shape diagnostic; corpus bursae rounded or oval, often with diagnostic signum; shape of the 7 th sternite variable and diagnostic. Immature stages: Larvae extremely long and slender; slightly tapered anteriorly with the face and sides of the head flattened; feed on low plants. Pupa slender, broadened anteriorly, and with elongated cremaster; a terminal pair of long and stout setae (D2) and three pairs of smaller and recurved setae before it ( Prout 1913 ; Patočka 2003 ). Distribution: Palearctic (chiefly), Oriental and Neotropical regions ( Prout 1913 ; Suludere 1988 ; Ramos-González et al. 2018; Cui et al. 2019 ; Sihvonen et al. 2020 ; Rajaei et al. 2022a ) Diagnosis: Adults of Rhodostrophia and Tanaotrichia are easily distinguishable from other genera in the tribe Cyllopodini Kirby, 1892 . Both genera possess quadripectinate antennae in males and filiform in females, and they share similar basic schemes of wing venation and markings ( Fig. 3b : FW, HW) ( Prout 1913 , 1938 ). Rhodostrophia has forewings with an acute or slightly falcate apex, vein R1 originating from the apex of 1 st areole; and hindtibia [ Fig. 3a : (v)] of male with either a single or paired median spur and a pair of terminal spurs. Whereas in Tanaotrichia , the forewing is comparatively broader, vein R1 originates before the apex of 2 nd areole [ Fig. 3b : FW]; hindtibia lacks median spurs altogether, bears a single functional terminal spur accompanied by a short, stout, scaly tuft and a long, well-developed hair pencil concealing all the spurs [ Fig. 3b : (ii)]. Male genitalia in Rhodostrophia are characterised by a long, membranous, sometimes slightly sclerotised, apically dilated and bilobed uncus; costal margin of valva curved, strongly sclerotised and ventro-distal regions distinctly modified. Corpus bursae in female genitalia with a sclerotised signum, often shaped as paired elongated sclerites. However, in Tanaotrichia , the uncus is sclerotised, somewhat flat, with a broad apex ( Fig. 40 ), signum in the corpus bursae of female genitalia as a double-ridged, longitudinal band-like with sclerotised scobination ( Fig. 62 ). FIGURE 3. Diagnostic features of the genus Rhodostrophia ( R. tristrigalis ) and Tanaotrichia ( T. prasonaria trilineata , type species of the genus). 3a. Head and leg features of the male of R. tristrigalis . i) Quadripectinate antennae, eye and labial palpi. ii) Lateral view of the antennae, ventral dentation. iii) Ventral view of the antenna. iv) Foretibia with an epiphysis. v) Hindtibia with a hair pencil arising from the femorotibial joint. 3b. T. prasonaria trilineata , type species of the genus Tanaotrichia . i) Foretibia with an epiphysis. ii) Hindtibial characteristics (hair pencil, a median ‘pseudo spur’ and terminal tibial spur accompanied with a small and compact hair tuft). FW) Forewing venation. HW) Hindwing venation. Species account