Partial revision of the genus Robinsonia Grote 1866: description of five new species for the Neotropical fauna (Lepidoptera, Erebidae, Arctiinae, Phaegopterina) Laguerre, Michel Zootaxa 2021 2021-06-18 4990 1 65 80 Laguerre Laguerrre 2021 [327,690,1846,1873] Insecta Arctiidae Robinsonia Animalia Lepidoptera 7 72 Arthropoda species drechseli sp. nov.  (BIN = BOLD:AAQ3214) Fig. 11.     Holotype. ♂, PARAGUAY, Cordillera, Salto Pirareta,  15–17-VI- 2010, 170 m, 25°29’ S– 56°56’ W, U. Drechselleg.— Sample IDMILA 1694 (yellow printed label)—BOLD Process IDARCTD569-12. Willbe deposited in MNHN.   Paratypes. 9 ♂ 32 ♀.  2 ♂, PARAGUAY, Paraguari, Sapucay,  14-VII-1902& XI-1904, W. Foster leg., the second is dissected, slide reference AW2546, both in NHMUK.  2 ♂, PARAGUAY, Alto Parana, Estancia Dimas,  6–7-V- 2011, 200 m, 25°33’ S– 55°13’ W, U. Drechsel leg., one is dissected Gen. ML3207 (light-blue manuscript label).  1 ♀, same data but  11–16-XI-2011.  1 ♀, PARAGUAY, Caazapa, Colonia Neufeld,  24-X- 2008, 150 m, 26°28’ S– 55°55’ W, U. Drechsel leg. Gen. ML3206 (light-blue manuscript label). Sample IDMILA 1395 (yellow printed label)—BOLD ProcessID ARCTC933-11.  2 ♂, PARAGUAY, Caazapa, Tavaï, Est Olmedo,  26-IX- 2008, 160 m, 26°13’ S– 55°36’ W, U. Drechsel leg. One with Gen. ML2126 (white manuscript label) and SampleID MILA 1396 (yellow printed label)—BOLD ProcessID ARCTC934-11.  2 ♂, PARAGUAY, Amambay, Laguna Ciervo,  24–27- VI- 2016, 320 m, 22°20’ S– 56°11’ W, U. Drechsel leg. All in MLC.  1 ♂ 1 ♀, PARAGUAY, Sapucay,  XI-1904& 14-VII-1902, W. Foster leg., the male has been dissected, slide reference 2546. All in NHMUK.   Holotypemale description( Fig. 11A–B). Head and thorax. Antennae bipectinate, shaft and rami light greyish, pure white at base, scape pure white. Frons and vertex pure white. Patagia, tegulae and thorax, white. Palpi pure white underside, dark greyish upper side, third segment very short.   FIGURE 11.  Robinsonia drechseliLaguerrre  sp. nov., A–B:male holotype, Adorsal view, Bventral view; C–D:female paratype, Cdorsal view, Dventral view. Labels not to scale. Scale = 10 mm.  Legs. Anterior coxae white. First pair of legs white above and dark brownish grey below. Second and third pairs dirty white.  Forewing. Wings rounded entirely silky white. The costa up to the apex is narrowly highlighted with light grey, the part between costa and cell creamy yellow. The grey line can be absent. Below similar to upper side but the costa very narrowly grey at base then widening slightly toward apex, bordered internally by dirty white until the cell.  Hindwing. Triangular, entirely silky white. Underside identical to upper side. No androconial structures on both wings.  Abdomen. Light creamy yellow, underside dirty creamy yellow. Forewing length: 14–15 mm(n = 6).  Male genitalia( Fig. 12A–E). Coremata absent. Uncus cylindrical, widened in middle with a largely bifid and pointed extremity and a slight dorsal median carina. Tegumen rectangular near the junction to uncus. Valvae reaching the middle of uncus, the base almost square with a narrow and elongated dorsal expansion with a blunt extremity. Just below this expansion and half its length, a rounded translucent lobe covered with long hairs. Juxta ovoid. Saccus as a pointed triangle, slightly constricted in the middle. Aedeagus short and cylindrical, caecum penis bulbous. Vesica smooth with a single lobe perpendicular to the main axis of the aedeagus, almost symetrical on each side, with a slightly scobinated area in the middle.  Female( Fig. 11C–D). Similar to male with the following differences: antennae ciliate, wings entirely white and more rounded. Forewing length: 14–16 mm(n = 3).   FIGURE 12. A–E: male genitalia of  Robinsonia drechseliLaguerre  sp. nov., Aventral view, Bdorsal view, Clateral view, Dvalva view from inside, Eaedeagus with everted vesica  Female genitalia( Fig. 13A–C). Papilles anales convex in middle. Apophyses anteriores slightly shorter than the posteriores. Pheromone glands straight and tubular, prominent. Antrum very slightly sclerotized. Ductus bursae as a flat ribbon, short and strongly curved. Bursa copulatrix small and pyriform, with circular wrinkles and two signa shaped as a fold in the center of a circular spiculate area. An accessory hemispherical wrinkled bursa, slightly smaller than the main bursa. The two bursae joined by a slightly scobinated tubular connection.   FIGURE 13. A–C: female genitalia of  Robinsonia drechseliLaguerre  sp. nov., Aventral view, Bdorsal view, Cdetail of the antrum, ductus bursae and papillae anales.  Early stages. Unknown.  Etymology.Named in honor of its collector Ulf Drechsel for his large contribution to the Paraguayfauna knowledge.  Distribution.Presently only known from Paraguayessentially in the Alto Parana, Caazapa, Cordilleraand Amambaydepartments, i.e.,in the East of the country. During a visit to the MWM in München, we found a strange, large  Robinsoniaspecimen close to  Robinsonia mera( Schaus, 1910)from Costa Ricabut collected in Perunear Pozuzo ( Pasco Province). The sequence of this specimen confirmed the vicinity of the two species but the distance of 7.06 % implies that we had in hand a new species. After a close examination of the de Toulgoët’s Collection housed in MNHN we found five additional specimens, including the only known female and we describe this species below under the name  Robinsonia inexpectataLaguerre  sp. nov. 3325437327 2010-06-15 2010-06-17 2010-06-15 MNHN U. Drechsel Paraguay -25.483334 Salto Pirareta 1246 -56.933334 7 72 1 1 Cordillera holotype 3325437316 14 - VII- 1902 & XI- 1904 NHMUK W. Foster Paraguay Sapucay 8 73 2 2 Paraguari paratype 3325437312 2011-05-06 2011-05-07 2011-05-06 U. Drechsel & Gen. ML Paraguay -25.55 Estancia Dimas 1246 -55.216667 8 73 2 2 Alto Parana paratype 3325437325 [228,615,258,285] 2011-11-11 2011-11-16 2011-11-11 U. Drechsel & Gen. ML Paraguay -25.55 Estancia Dimas 1246 -55.216667 8 73 1 1 Alto Parana paratype 3325437311 2008-10-24 U. Drechsel Paraguay -26.466667 Colonia Neufeld 1241 -55.916668 8 73 1 1 Caazapa paratype 3325437326 2008-09-26 U. Drechsel Paraguay -26.216667 Est Olmedo 1243 -55.6 Tavai 8 73 2 2 Caazapa paratype 3325437318 2016-06-24 2016-06-27 2016-06-24 U. Drechsel Paraguay -22.333334 Laguna Ciervo 1260 -56.183334 8 73 2 2 Amambay paratype 3325437308 XI- 1904 & 14 - VII- 1902 NHMUK W. Foster & All Paraguay Sapucay 8 73 2 1 1 paratype