Mutipialus dilatus, Mielke & Grehan & Koike, 2021

Mielke, Carlos G. C., Grehan, John R. & Koike, Ricardo M., 2021, Descriptions of two new genera and six new species of ghost-moths (Lepidoptera Hepialoidea: Hepialidae) from south-eastern and southern Brazil, Zootaxa 5020 (3), pp. 561-580: 569

publication ID

https://doi.org/10.11646/zootaxa.5020.3.7

publication LSID

lsid:zoobank.org:pub:CCF5FB8C-2552-4299-B0AF-8673230E7609

persistent identifier

http://treatment.plazi.org/id/F17187DF-EE34-FFA8-FF10-EFF127E9F982

treatment provided by

Plazi

scientific name

Mutipialus dilatus
status

sp. n.

Mutipialus dilatus   sp. n.

( Figs 8–12 View FIGURES 8−12 , 16, 24 View FIGURES 16−24 , 27–28, 30 View FIGURES 25−30 , 34 View FIGURES 31−35 , 38, 41, 45 View FIGURES 36−46 , 49 View FIGURES 47−50 , 54, 56 View FIGURES 51−57 )

Type material. Holotype ♀ ( Figs 8a–b View FIGURES 8−12 ): [ Brazil], 7.IX.1998, Vossoroca, Tijucas do Sul , PR. [Paraná] 850 m, C. Mielke leg./ 5.801 Col. C. Mielke   / HOLOTYPUS, Mutipialus dilatus C. Mielke, Grehan & Koike, 2021   / ( DZUP)   .

Paratypes (5♂, 2♀). BRAZIL. Minas Gerais   : 1♂, Conceição dos 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) GoogleMaps   . São Paulo: 1♂, Campos do Jordão, Lavrinhas , 31.X.1990, R. Koike leg. ( CGCM 41.733 ( CGCM))   ; 1♂, Santo André, Vila Paranapiacaba, Parque Mu- 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 View FIGURES 8−12 ), (ii) ♂ triangular sternite VIII ( Fig. 45 View FIGURES 36−46 ), (iii) greatly expanded dorso-posterior plate of tergal lobe and pseudotegumen ( Fig. 49 View FIGURES 47−50 ), (iv) deeply concave fultura superior ( Fig. 49c View FIGURES 47−50 ), (v) subtriangular valva and (vi) shorter corpus bursae that is only twice as long as the ductus bursae ( Fig. 56 View FIGURES 51−57 ).

Description. Male ( Figs 11–12 View FIGURES 8−12 , 16, 24 View FIGURES 16−24 , 27, 30 View FIGURES 25−30 , 41, 45 View FIGURES 36−46 , 49 View FIGURES 47−50 ).

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 View FIGURES 8−12 .

Genitalia ( Fig. 49 View FIGURES 47−50 ). 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 View FIGURES 8−12 , 28 View FIGURES 25−30 , 34 View FIGURES 31−35 , 38 View FIGURES 36−46 , 54, 56 View FIGURES 51−57 ).

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 View FIGURES 8−12 .

Genitalia ( Figs 54, 56 View FIGURES 51−57 ). Dorsal plates narrow, slightly projected posteriorly. Lamella antevaginalis U-shaped, narrow, mesally setose, bilobed and slightly projecting posteriorly (narrowed in Fig. 54a View FIGURES 51−57 ). 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 Janeiro to northeastern Santa Catarina, at altitudes ranging from 700 to 1900 m ( Figs 58 View FIGURE 58 , 60 View FIGURES 59−62 ).

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.

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo