Descriptions of two new genera and six new species of ghost-moths (Lepidoptera Hepialoidea: Hepialidae) from south-eastern and southern Brazil Mielke, Carlos G. C. Grehan, John R. Koike, Ricardo M. Zootaxa 2021 2021-08-13 5020 3 561 580 Mielke & Grehan & Koike, 2021 Mielke & Grehan & Koike 2021 [151,373,151,178] Insecta Hepialidae Mutipialus Animalia Lepidoptera 8 569 Arthropoda species dilatus sp. nov.  ( Figs 8–12, 16, 24, 27–28, 30, 34, 38, 41, 45, 49, 54, 56)   Type material.   Holotype ♀( Figs 8a–b): [ Brazil],  7.IX.1998, Vossoroca, Tijucas do Sul, PR. [ Paraná]  850 m, C. Mielkeleg./ 5.801 Col. C. Mielke/  HOLOTYPUS,  Mutipialus dilatusC. Mielke, Grehan & Koike, 2021/ ( DZUP).    Paratypes( 5♂, 2♀).  BRAZIL.  Minas Gerais:  1♂, Conceiçãodos Ouros,  800 m,  10.XI.1993. E. Pereira leg. ( CGCM 27.435( MGCL)).   Rio de Janeiro: 1♂, Itatiaia, Itatiaia Nat. Park, Maromba, Pto. Escada,  1170 m,  6.XI.2012, 22°25’45’’ S 44°37’08’’ W, Lepidoptera Lab.expedition ( MZSP).   São Paulo: 1♂, Campos do Jordão, Lavrinhas,  31.X.1990, R. Koike leg. ( CGCM 41.733( CGCM));  1♂, Santo André, Vila Paranapiacaba, ParqueMu- nicipal Nascentes de Paranapiacaba,  1100 m,  14.XI.2020, R. Koike leg. ( DZUP).   Paraná: 1♂, Ponta Grossa, Vila Estrela,  900 m,  6.X.1989, C. Mielke leg. ( CGCM 23.689( CGCM)).   Santa Catarina: 1♀, São Bento do Sul, Rio Natal,  700 m,  20.X.1994, O. Rank leg. ( CGCM 18.103( CGCM));  1♀, São Bento do Sul, Rio Vermelho,  800 m,  4.XI.1990( CGCM 7.584( CGCM)).   Diagnosis. Readily distinguished from congeneric species, described below, by (i) the contrasting mottled forewing ornamentation ( Figs 8–12), (ii) ♂triangular sternite VIII ( Fig. 45), (iii) greatly expanded dorso-posterior plate of tergal lobe and pseudotegumen ( Fig. 49), (iv) deeply concave fultura superior ( Fig. 49c), (v) subtriangular valva and (vi) shorter corpus bursae that is only twice as long as the ductus bursae ( Fig. 56).   Description. Male( Figs 11–12, 16, 24, 27, 30, 41, 45, 49).  Head. Antenna with ~38 antennomeres. Mesal and distal labial palpomere two and a half times longer than distal palpomere, respectively.  Thorax. Forewing length: 15–18 mm, wingspan: 28–35 mm. Wing ornamentation as shown in Figs 11–12.  Genitalia( Fig. 49). Tegumen oblique, rectangular, slightly curved, well distinguished from pseudotegumen by its stronger sclerotisation. Saccus U-shaped, posterior arms strongly sclerotised, anterior projection forming bag-like cavity. Tergal lobes and dorsal pseudotegumen fused and forming robust subtriangular wall, dorso-posteriorly projecting on each side, expanded and connected mesally by thicker membrane, antero-ventrally bifid; ridge emerges from digitiform antero-dorsal projection finely fused, posteriorly expanded as lateral shelf on each side. Fultura inferior trapezoidal. Fultura superior subtriangular and deeply concave (in ventral view). Valva subtriangular, lobated and curved distally with expanded costa.  Female( Figs 8–10, 28, 34, 38, 54, 56).  Head. Antenna with 40 antennomeres. Mesal and distal palpomere five times the length of the basal palpomere.  Thorax. Forewing length: 19–22 mm, wingspan: 38–45 mm. Wing ornamentation as shown in Figs 8–10.  Genitalia( Figs 54, 56). Dorsal plates narrow, slightly projected posteriorly. Lamella antevaginalis U-shaped, narrow, mesally setose, bilobed and slightly projecting posteriorly (narrowed in Fig. 54a). Subanal sclerites slightly sclerotised, subrectangular, oblique. Corpus bursae narrowing to junction with ductus bursae that is twice as long as the corpus bursae.  Geographical distribution. Known from southeastern Minas Gerais and Rio de Janeiroto northeastern Santa Catarina, at altitudes ranging from 700 to 1900 m( Figs 58, 60).   Host plants. Unknown.   Etymology. The proposed specific name  dilatus(Latin)alludes to the species’ broad geographic range. It is treated as an adjective in the nominative singular. 1998-09-07 C. Mielke & Col. C. Mielke Brazil 850 Tijucas do Sul Vossoroca 8 569 1 1 Para holotype [545,1430,295,321] DZUP Brazil 8 569 1 Para holotype [199,745,331,358] Brazil Minas Gerais 8 569 7 2 5 Minas Gerais paratype 1993-11-10 MGCL E. Pereira Brazil 800 Ouros Conceicao 8 569 CGCM 27.435 1 1 Minas Gerais paratype 2012-11-06 MZSP Brazil Itatiaia 1170 -22.429167 Maromba 21 -44.61889 Itatiaia Nat. Park 8 569 1 1 Rio de Janeiro paratype 1990-10-31 CGCM R. Koike Brazil Lavrinhas Campos do Jordao 8 569 CGCM 41.733 1 1 Sao Paulo paratype 2020-11-14 DZUP R. Koike Brazil Santo Andre 1100 Parque Vila Paranapiacaba 8 569 1 1 Sao Paulo paratype 1989-10-06 CGCM C. Mielke Brazil 900 Vila Estrela Ponta Grossa 8 569 CGCM 23.689 1 1 Parana paratype 1994-10-20 CGCM O. Rank Brazil 700 Rio Natal Sao Bento do Sul 8 569 CGCM 18.103 1 1 Santa Catarina paratype 1990-11-04 CGCM Brazil 800 Rio Vermelho Sao Bento do Sul 8 569 CGCM 7.584 1 1 Santa Catarina paratype