Revaya, Prozorov & Prozorova & Yakovlev & Volkova & Saldaitis & Sulak & Revay & Müller, 2023

Prozorov, Alexey M., Prozorova, Tatiana A., Yakovlev, Roman V., Volkova, Julia S., Saldaitis, Aidas, Sulak, Harald, Revay, Edita E. & Müller, Günter C., 2023, A new genus of Afrotropical Lasiocampini: Revaya gen. n. (Lepidoptera, Lasiocampidae, Lasiocampinae), Zootaxa 5369 (2), pp. 207-222 : 209-217

Revaya gen. n.

urn:lsid:zoobank.org:act:CF63C50A-3C97-4846-B310-172D5FF421E4

( Figs 1–11 , 20–27 , 31–32 , 39 )

Type-species: Revaya yahya sp. n., by present designation.

Description. Male ( Figs 1–3, 6–11 ). Flagellum covered with cream-colored and greyish scales, rami orangish. Head and thorax greyish or purplish and cream-colored. Abdomen cream-colored. Forewing. Forewing length: 18–22 mm. Elongated with blunt apex. Background cream-colored with brown speckles. Pattern consists of blurred medial lines with somewhat darker medial field and external wavy line. Fringe with brown and cream-colored speckles. Hindwing. Somewhat rhomboid with convex external margin. Background cream-colored. Fringe consist of brown and cream-colored scales. Genitalia ( Figs 20–27 ). Tegumen a narrow band, medially widened; laterally bears a pair of socii. Socii papilla-shaped, covered with setae. Vinculum ventrally almost rectangle, distally bears cubile (sensu Lajonquière, 1968) with large proximal apodeme. Cubile divided medially into a pair of somewhat finger shaped processes. Cucullus elongated, claw shaped. Sacculus with its wide base about the length of cucullus, finger shaped, medially membranous. Juxta a tiny plate, fused with aedeagus. Aedeagus straight with short basal apodemes, ventrocaudally bears minute dents. Vesica elongated, caudally bears a cluster of cornuti. Eighth sternite somewhat semi-oval, has caudal sclerotized extension with small medial and long lateral spurs. Eighth tergite elongated, somewhat pentagonal, medially membranous, basally has a pair of lateral apodemes. Female ( Figs 4–5 ). Similar to male in pattern but larger in size, antenna pectinations much shorter, has well pronounced dark spot in external line. Head and thorax with brown or purplish and cream-colored speckles. Abdomen cream-colored. Forewing. Forewing length: 27–28 mm. Oviform, elongated with blunt apex. Background cream-colored. Pattern consists of blurred medial lines and purplish or greyish and cream-colored speckled field. Fringe brown. Hindwing. Oviform with convex external margin. Background cream-colored with brown speckles in medial field. Fringe brown. Genitalia ( Figs 31–32 ). Papillae anales semi-spherical. Posterior and anterior apophyses of the same length. Antevaginal plate small, semi-round; postvaginal plate larger, somewhat trapezoid. Ostium wide, somewhat round. Ductus bursae wide with lateroproximal fields of wrinkled sclerotizations. Corpus bursae large, spherical.

Diagnosis. The following three genera are morphologically close to Revaya gen. n. and, thus, compared with its members: 1) Catalebeda ; 2) Ptyssophlebia ; and 3) Oplometa .

1) Catalebeda contains five valid species ( De Prins & De Prins, 2011 –2023), the type species is Catalebeda (= Lebeda ) producta Walker, 1855 ( Figs 15–17 ). Adults of Revaya gen. n. have narrower forewings with blurred medial lines and contrasting fields ( Figs 1–11 ), whilst the ones of Catalebeda have wider forewings with numerous antemedial and postmedial wavy lines ( Figs 15–17 ). In male genitalia of Revaya gen. n. the valvae are bilobed, the aedeagus has apical dents, the vesica bears apical cluster of cornuti, the vinculum forms an almost rectangular caudal extension, the eighth sternite has sclerotized caudal extensions with short mediocaudal and long lateral spurs ( Figs 20–27 ), whilst in Catalebeda the valvae are of one piece, the aedeagus has one apical dent, the vesica bears no cornutus, the vinculum forms a somewhat heart-shaped extension, and the eighth sternite is not modified ( Fig. 28 ). In female genitalia of Revaya gen. n. the antevaginal plate is a semi-round sclerotized plate, the ductus is wide with lateroproximal fields of wrinkled sclerotizations ( Figs 31–32 ), whilst in Catalebeda the antevaginal plate is a relatively large sclerotized plate and the ductus is not well pronounced ( Figs 35–36 ).

2) Ptyssophlebia contains two valid species ( Prozorov & Zolotuhin, 2013 a, 2013b), the type species is Ptyssophlebia avis Berio, 1937 —a junior synonym of P. discocellularis ( Figs 12–14 ). Adults of Revaya gen. n. have narrower forewings with blurred medial lines and contrasting fields ( Figs 1–11 ), whilst the ones of Ptyssophlebia have wider forewings with better pronounced medial line ( Figs 12–14 ). In male genitalia of Revaya gen. n. the tegumen is widened medially, the valvae are bilobed, the aedeagus is cylindrical with apical dents, the vesica bears apical cluster of cornuti, the vinculum forms an almost rectangular caudal extension, the processes of the cubile are less sclerotized with an even surface, and the mediocaudal dents of the eighth sternite are small ( Figs 20–27 ), whilst in Ptyssophlebia the tegumen is medially membranous, the valvae not bilobed, the aedeagus is of a bird head shape apically, the vesica is tiny with no cornutus, the vinculum is V-shaped, the processes of the cubile are wellsclerotized with wrinkled surface, the eighth sternite has a pair of elongated mediocaudal extensions ( Fig. 30 ). In female genitalia of Revaya gen. n. the antevaginal plate is fully sclerotized, the postvaginal plate has no outgrowth, and the ductus is wide with lateroproximal fields of wrinkled sclerotizations ( Figs 31–32 ), whilst in Ptyssophlebia the antevaginal plate a semi-ring, the postvaginal plate has medial dents, and the ductus is not pronounced ( Figs 33–34 ).

3) Oplometa contains one valid species ( Zolotuhin & Gurkovich, 2009b), the type species is O. cassandra ( Druce, 1887) ( Figs 18–19 ). Female of Oplometa remains unknown. Adult males of Revaya gen. n. have convex hindwings ( Figs 1–3, 6–11 ), whilst those of Oplometa have straight or slightly concave external margin of hindwings ( Figs 18–19 ). In male genitalia of Revaya gen. n. valvae are bilobed, aedeagus has apical dents, vesica bears apical cluster of cornuti, vinculum forms almost rectangular caudal extension, the eighth sternite has caudal sclerotized extension with short mediocaudal and long lateral spurs ( Figs 20–27 ), whilst in Oplometa the valvae are in one piece, the aedeagus has one apical dent, the vesica bears no cornutus, the vinculum forms somewhat heart-shaped extensions, and the eighth sternite is not modified ( Fig. 29 ).

DNA comparison ( Fig. 39 ). One species of the genus, Revaya yahya sp. n., has been barcoded and showed p -distance of 10% from C. producta , 12% from P. discocellularis , and 15.4% from the outgroup, Chondrostegoides magna Zolotuhin, 2007 . Numbers are comparable with earlier shown intergeneric p -distances between:

1. two species of the genus Pachypasa Walker, 1855 and Macrothylacia rubi ( Linnaeus, 1758) —14.6–15.5% ( Prozorov et al., 2022b);

2. three species of the genus Streblote and Pachygastria editae ( Speidel et al., 2015) —13.7–15.2% ( Prozorov et al., 2022a);

3. some species of the genera Braura Walker, 1865 ; Cheligium Zolotuhin & Gurkovich, 2009 ; Cleopatrina Zolotuhin & Gurkovich, 2009 ; Eutricha Ḩbner, 1814; Grellada Zolotuhin & Gurkovich, 2009 ; Lasiocesa Koçak, 2013 ; Muzunguja Zolotuhin & Gurkovich, 2009 ; Pachytrina Zolotuhin & Gurkovich, 2009 ; Pallastica Zolotuhin & Gurkovich, 2009 ; and Vavizola Prozorov et al., 2023 —4.7–12% ( Prozorov et al., 2023a);

4. some species of the genera Bombycopsis ; Pallastica ; and Chionopsyche montana Aurivillius, 1909 —11.1– 13.5% ( Prozorov et al., 2023b);

5. some species of the genera Dollmania Tams, 1930 ; Mallocampa leighi Aurivillius, 1922 ; and Ch. montana — 8.8–13.2% ( Prozorov et al., 2023b);

6. two species of the genus Odontopacha Aurivillius, 1909 ; two species of Philotherma Möschler, 1887 ; and Ch. montana —9.6–15.2% ( Prozorov et al., 2023b).

Included species: Revaya yahya sp. n. and Revaya edita sp. n.

Etymology. The genus is named after a noble Hungarian family Révay originating from the 13 th century.

Figures

FIGURES 1–11. Adults of Revaya spp. 1–6. R. yahya. 1. HT ♁, NE RSA, Ben Lavin Natural Reserve, GS 1271 (CGM). 2. PT ♁, NE RSA, Klaserie River, GS 1270 (CGM). 3. PT ♁, E Zimbabwe, Marondera, GS Las-47 (NHMZ). 4. PT ♀, NE Botwana, Pandamatenga, Las-69 (DMNH). 5. PT ♀, SW Mozambique, Massangena, Las-48 (DMNH). 6. PT ♁, SW Zimbabwe, Khami, Las-46 (NHMZ). 7–11. R. edita, ♁. 7. HT, NE Tanzania, Ushongo Beach, GS 0097 (CGM). 8. PT, SE Kenya, South Ukambani, GS 10-037 (CGM). 9–10. PT, N Malawi, Nkhorongo, GS 1269, 0098 (CGM). 11. PT, C Zambia, Chiawa, GS Las-57 (DMNH). Scale bar—1 cm.

FIGURES 20–23. ♁ genitalia of Revaya yahya. 20. PT, SW Zimbabwe, Khami, Las-46 (NHMZ). 21. PT, E Zimbabwe, Marondera, GS Las-47 (NHMZ). 22. HT, NE RSA, Ben Lavin Natural Reserve, GS 1271 (CGM). 23. PT, NE RSA, Klaserie River, GS 1270 (CGM). Scale bar—1 mm.

FIGURES 24–27. ♁ genitalia of Revaya edita. 24–25. PT, N Malawi, Nkhorongo, GS 1269, 0098 (CGM). 26. HT, NE Tanzania, Ushongo Beach, GS 0097 (CGM). 27. PT, C Zambia, Chiawa, GS Las-57 (DMNH). Scale bar—1 mm.

FIGURES 31–32. PT ♀ genitalia of Revaya yahya. 31. SW Mozambique, Massangena, Las-48 (DMNH). 32. NE Botwana, Pandamatenga, Las-69 (DMNH). Sale bar—1 mm.

FIGURES 37–39. Collecting sites of Revaya yahya (37) and R. edita (38; for details visit bit.ly/revayamap) and NJ tree (39; COI 658 bp, K2P, bootstrap 1000, built with MEGA X) with pairwise distances (%) between R. yahya, Catalebeda producta, Ptyssophlebia discocellularis and Chondrostegoides magna as an outgroup. Circles with stars are for the collecting localities of primary types, other tags are for the additional material.

FIGURES 12–19. Adults. 12–14. Ptyssophlebia discocellularis. 12–13. ♁, N DRC, Isiro, GS 2011-125 (RMCA). 14. ♀, SW Cameroon, 15 km on the road Edela—Douala, GS 2011-126 (RMCA). 15–17. Catalebeda producta, 2♁ and ♀, C DRC, Ekongo camp (CGM). 15. GS 1224. 16. GS 1226. 17. GS 1119. 18–19. Oplometa cassandra, ♁. 18. C DRC, Ekongo camp, GS 0960 (CGM). 19. W DRC, Eala (RMCA). Scale bar—1 cm.

FIGURES 28–30. ♁ genitalia. 28. Catalebeda producta, SE Ghana, Biakpa, GS 2017-110 (MfNB). 29. Oplometa cassandra, C DRC, Ekongo camp, GS 0960 (CGM). 30. Ptyssophlebia discocellularis, S Cameroon, Yaoundé, GS 1494 (NHML). Scale bar for figures 28–29—1 mm.

FIGURES 33–36. ♀ genitalia. 33–34. Ptyssophlebia discocellularis. 33. SW Cameroon, 15 km on the road Edea—Douala, GS 2011-126 (RMCA). 34. N DRC, Masako Field Station, GS 17474 (CGM). 35–36. Catalebeda spp., C DRC, Ekongo camp (CGM). 35. Catalebeda producta, GS 1119. 36. Catalebeda sp., GS 1118. Scale bars—1 mm.