Leucania chejela ( Schaus, 1921 ),

Dolibaina, Diego Rodrigo, Casagrande, Mirna Martins, Specht, Alexandre, Mielke, Olaf Hermann Hendrik, Legrain, Albert, Zilli, Al, 2019, Taxonomy of the rivorum species-group of Leucania Ochsenheimer, 1816 (Lepidoptera: Noctuidae), Zootaxa 4711 (3), pp. 545-560: 553-557

publication ID

https://doi.org/10.11646/zootaxa.4711.3.6

publication LSID

lsid:zoobank.org:pub:6DB0732B-7F4C-4CD6-9702-F739FB657D57

persistent identifier

http://treatment.plazi.org/id/03823E5C-2964-253B-FF16-D403FAA6FCCE

treatment provided by

Plazi

scientific name

Leucania chejela ( Schaus, 1921 )
status

 

Leucania chejela ( Schaus, 1921) 

( Figs 13–16View FIGURES 1–16, 20, 24View FIGURES 17–24, 28View FIGURES 25–28, 32View FIGURES 29–32, 36, 40View FIGURES 33–40, 42View FIGURE 42)

Cirphis chejela Schaus, 1921: 360  .— Draudt 1924: 163.— Schaus 1940: 185.

Cirphis rivorum  [misidentification] (in part); Draudt 1924: 165.

Leucania chejela (Schaus)  ; Poole 1989: 577.— Adams 2001: 194, figs 2A (female, dorsal), 6A (male genitalia), 13F (female genitalia).— Schmidt et al. 2018: 244, 249.

Diagnosis. Leucania chejela  has a color pattern similar to that of species in the rivorum  group. It can be distinguished by its slightly longer and wider forewing, paler ground color, and the postdiscal row of minute black dots restricted to M 2 and CuA 2. Moreover, L. chejela  is easily identified by the longer and more triangular cucullus, broadly fused with main section of valva; costal sensory plate P-shaped; digitus straight; reduced clasper; very short ampulla; and a very long and densely setose claval projection on the sacculus. The female genitalia are also distinctive with an appendix bursae that is shorter and membranous than congeners.

Redescription. Forewing: Length 15.8–17.2 mm in males (n = 6), 16.6–17.8 mm in females (n = 5).

Male genitalia: Tegumen and saccus as in L. rivorum  . Valva roughly ovoid, twice as long as widest (medial) portion; editum thumb-like, very short; clasper reduced to a small plate; ampulla a small protuberance; digitus straight, as long as width of cucullus at its base, pointed apically; superior margin of sacculus with conspicuous claval projection, longer than cucullus and narrow, with dense, short setae; costal sensory plate P-shaped, with conspicuous, ventrally oriented costal process almost reaching ventral margin of valva; cucullus sub-triangular, roughly one third length and half width of valva, broadly fused to main section of valva, differentiated by a short ventral indentation, and edged distally and ventrally with dense, long and robust setae. Poma similar in shape and size to that of L. multistria  . Uncus slender, bent sharply in basal fifth, curving gradually towards the apex, distal half setose, laterally expanded and rugose in distal third, narrowing apically to appear hook-like. Fultura inferior as in L. pampa  . Aedeagus similar to that of L. rivorum  , but distally without right lateral stripe; vesica simple tubular, twisted to right, with a sclerotized and corrugated mid-dorsal irregular plate near base, and about 40 narrow, scale-like and pointed cornuti, decreasing in size in a row along vesica towards the gonopore. Subscaphium joined to tegumen by narrow sclerotized arms.

Female genitalia: As in L. rivorum  , but sternum VIII more membranous medially, ostium bursae leading into long sub-rectangular antrum. Ductus bursae completely membranous dorsally, moderately sclerotized ventral ridges not extending into appendix bursae; appendix bursae short dome-shaped, about one fifth length of corpus bursae, completely membranous; corpus bursae slender, as long as ductus bursae and antrum altogether.

Geographical distribution and phenology. This is a widespread species, occurring from the Florida Keys, Florida, USA to the Antilles and in Central America ( Schaus 1921, 1940; Draudt 1924; Adams 2001; Schmidt et al. 2018). The data compiled here extend the species distribution to South America, as far south as the Rio Grande do Sul state, Brazil ( Fig. 42View FIGURE 42). The record of L. rivorum  from Cuba in Draudt (1924) probably refers to L. chejela  . This species is recorded throughout the year.

Comments. Leucania chejela  is another poorly known species of American Leucania  , described from Guatemala and thought to be restricted to Central America and the Antilles ( Schaus 1921, 1940; Draudt 1924; Adams 2001). Recently, it was recorded from the Florida Keys ( Schmidt et al. 2018). In the present study, this species is confirmed from South America for the first time, occurring in all regions and in most of the Brazilian biomes. Leucania chejela  occurs in sympatry with other species of the rivorum  group although, as far we know, they may only coexist in a narrow zone of southern Brazil, in the Paraná state, as noted above.

Schaus (1921) mentioned in his original description of L. chejela  its close relationship to L. multilinea Walker, 1856  . However, forewing pattern and male genitalia suggest that these two species belong to separate species groups. Regarding the forewing pattern, L. chejela  is similar to members of the rivorum  species-group with respect to ground color, white-lined wing veins, dark brown midline along intervenular spaces, beige diagonal line at the apex and below discal cell, and the reduced postdiscal black dots. Despite the many distinctive characters in the male genitalia of L. chejela  , the broad fusion of the cucullus with the main section of valva is also found in L. rivorum  , L. multistria  , and L. pampa  . The particular configuration of the cucullus present in these species is found in few other American Leucania  , such as L. cinereicollis Walker, 1858  , L. seteci ( Dyar, 1914)  , L. incognita ( Barnes & McDunnough, 1918)  , L. eyre  , and L. steniptera ( Hampson, 1905)  . However, the female genitalia of L. chejela  , with their short and unsclerotized appendix bursae, are not particularly similar to those in the rivorum  group. The distinct male and female genitalia of L. chejela  led Adams (2001) to suspect its affinities with Old World Leucania  , and further studies are necessary to clarify the phylogenetic relationships within and outside the rivorum  group.

Type material. The description of Cirphis chejela  was based on the male holotype from Chejel, Guatemala, deposited at the USNM under number 23381. This specimen bears the following labels: / Chejel Guat[emala] / Aug.[ust] / Schaus and Barnes coll / Type No. 23381 U.S. N.M. / Cirphis chejela  type Sch[au]s /.

Examined Material. 97♂, 61♀ and 16 additional specimens. MEXICO: Veracruz : Jalapa  , 1♂ ( USNM). GUA- TEMALA: Alta Verapaz : Chejel  , 1♀, VII, 1♂, holotype cited above, and 1♀ VIII, Schaus & Barnes leg. ( USNM). Izabal : Cayuga  , 1♂, V, Schaus & Barnes leg. ( USNM). BRAZIL: Roraíma : Alto Alegre  , 1♂ and 1♀, 19.VI.2015, E. G. Fidelis leg., preserved in alcohol ( CPAC). Acre : Rio Branco, 121m  , 2♂, 23.VI.2015, M. Fazolin leg., 2726, 3962 ( CPAC); and the following specimens are preserved in alcohol, 1♀, 14.VI.2015, 1♂, 11.XII.2015, M. Fazolin leg. ( CPAC). Pará   : 1♀, VI.1935, G. V. Vredenburg leg., 010915084 ( NHMUK). Santo Antônio do Tauá   , 1♂, 17‒ 24.VII.2007, A. Moser leg. ( CLAM). Maranhão : Feira Nova do Maranhão (Fazenda Forquilha dos Brejos), 480m  , 2♂, 1‒3.XII.2011, V. O. Becker leg., 148142 ( VOB). Rondônia : Cacaulândia, 350m  , 1♀, 1‒20.XI.1999, H. Thöny leg. ( CHB). Mato Grosso : Chapada dos Guimarães, 800m  , 1♀, 7‒8.IV.1996, V. O. Becker leg., 106413 ( VOB). Conquista D’Oeste   , 1♂ and 1♀, 2.I.2017, J. P. Santos & L. Queiroz-Santos leg., DZ 40.067, DZ 40.516 ( DZUP). Sinop , 121m  , 1♂ and 1♀, 10.VI.2015, 1♂, 12.VI.2015, 1♀, 4.IV.2016, L. Filipiake, S. M. M. Rodrigues & R. Pitta leg., 3966, 3983, 2728, 3955 ( CPAC); and the following specimens are preserved in alcohol, 2♀, 14.VI.2015, 1♂ and 1♀, 14.VII.2015, 1♀, 16.VII.2015, 1♀, 17.VII.2015, 1♀, 2.II.2016, 1♂, 3.II.2016, 1♂, 2.III.2016, 1♂ and 1♀, 4.IV.2016, 1♀, 13.VIII.2016, L. Filipiake, S. M. M. Rodrigues & R. Pitta leg. ( CPAC). Mato Grosso do Sul : Chapadão do Sul  , 1♀, 10.VI.2015, 1♀, 14.VI.2015, 1♂, 12.VII.2015, 2♂, 2.V.2016, 1♀, 3.V.2016, 1♂ and 1♀, 6.V.2016, T. Taira leg., 3578, 4505, 4506, 4507, 3572, 4508, 4509, 4510 ( CPAC); and the following specimens are preserved in alcohol, 3♂, 6.IV.2016, 8♂ and 7♀, 2.V.2016, 7♂ and 2♀, 3.V.2016, 14♂, 4.V.2016, 10♂ and 2♀, 5.V.2016, 1♀, 6.V.2016, T. Taira leg. ( CPAC). Miranda , 122m  , 1♂, 12.VI.2015, 3952, 6♂ and 2♀, 13.VI.2015, 3963, 3978, 3992, 3996, 4010, 4030, 3958, 6♂ and 4♀, 11.VII.2015, 3944, 3954, 3961, 3865, 3977, 3982, 3946, 3950, 3959, 3975, 2♂, 12.VII.2015, 3853, 3947, 1♂, 3.II.2016, 3951, 2♂, 1.VI.2016, 3956, 3964, 1♂ and 1♀, 2.VI.2016, 3957, 3960 A. Specht, W. R. Carmargo & H. V. B. Concone leg. ( CPAC); and the following specimens are preserved in alcohol, 1 specimen, 13.VI.2015, 9 specimens, 11.VII.2015, 1 specimen, 12.VII.2015, 1♂ and 3 specimens, 13.VII.2015, 1♀, 2.II.2016, 2 specimens, 3.II.2016, A. Specht, W. Carmargo & Concone leg. ( CPAC). Goiás : Formosa, 800m  , 1♀, 19.III.1977, V. O. Becker leg., 20281( VOB). Distrito Federal : Planaltina, 1000m  , 1♀, 28.VI.1976, 1♀, 15.XII.1976, V. O. Becker leg., 18823, 18953 ( VOB), ( CPAC), 1007m  , 1♀, 4.V.2013, 1♀, 9.VIII.2013, 1♀, 29.XII.2013, 1♀, 31.XII.2013, 1♀, 28.I.2014, 1♀, 19.III.2015, 1♂, 20.IV.2015, A. Specht leg., 840, 484, 849, 838, 572, 549, 597 ( CPAC). Minas Gerais : Poté, 500m  , 3♀, 15.XI.1995, 15.VIII.1996, 15.V.1997, H. Thöny leg. ( CHT). Uberaba , 819m, 19.VI.2015  , 1♂, B. Moreira leg., 3968 ( CPAC), and the following specimens are preserved in alcohol  , 1♂, 16.VI.2015, 1♂ and 1♀, 12.III.2016, 1♂, 17.IV.2016, B. Moreira leg. ( CPAC). Bahia : Angical, 442m  , 1♀, 17.VI.2015, M. R. O. Serpa leg., 2742 ( CPAC). Correntina , 943m  , 1♂, 15.IX.2015, A. Specht leg., 3970 ( CPAC). Espírito Santo : Alegre, 120m  , 1♀, 16.VI.2015, D. Pratissoli leg., preserved in alcohol ( CPAC). Domingos Martins , 950m  , 1♀, 16.VI.2015, 1♂, 3.V.2016, 1♂, 5.V.2016, J. S. Zanuncio Jr. leg., 2724, 4503, 4504 ( CPAC). Santa Leopoldina (Tirol)  , 650m  , 1♂, 10.VI‒10.VII.1997, H. Thöny leg. ( CHT). Rio de Janeiro : Itaguai (Km 47)  , 1♀, 29.VI.1959, D. Mendes leg. ( MNRJ). São Paulo : Cajati (Parque Estadual Rio Turvo, mirante do Aleixo), 1018m  , 1♂, 1‒3.XII.2013, Quinteiro & Silva leg. ( MZUSP). Paraná : Londrina, 600m  , 1♀, 14.VII.2015, D. R. Sosa-Gomez leg., 4511 ( CPAC). Ponta Grossa   , 2♂, 25.IX.1975, V. O. Becker leg., 3292 ( VOB, USNM). Tibagi (Parque Estadual do Guartelá), 1000m  , 2♂, 25-27.VII.2017, Dantas, Dias, Dolibaina & Queiroz-Santos leg., DD 361, DZ 40.326* ( DD, DZUP). Rio Grande do Sul : Iraí  , 1♂, 15.IV.1998, M. F. Teston leg., 11196 ( MCTP).

USNM

Smithsonian Institution, National Museum of Natural History

CPAC

Centro de Pesquisas Agropecuarias do Cerrado

NHMUK

Natural History Museum, London

DZUP

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

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

MCTP

Museu de Ciencias

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Noctuidae

Genus

Leucania

Loc

Leucania chejela ( Schaus, 1921 )

Dolibaina, Diego Rodrigo, Casagrande, Mirna Martins, Specht, Alexandre, Mielke, Olaf Hermann Hendrik, Legrain, Albert, Zilli, Al 2019
2019
Loc

Cirphis chejela

Schaus, W. 1940: 185
Draudt, M. 1924: 163
Schaus, W. 1921: 360
Loc

Cirphis rivorum

Draudt, M. 1924: 165
Loc

Leucania chejela

Schmidt, B. C. & Lafontaine, J. D. & Troubridge, J. T. 2018: 244
Adams, M. S. 2001: 194
Poole, R. W. 1989: 577