Xiphocentron (Antillotrichia) maracanan Vilarino, Cavalcante, Dumas & Nessimian 2018

Vilarino, Albane & Bispo, Pitágoras C., 2020, New records and two new species of Xiphocentron Brauer 1870 (Trichoptera Xiphocentronidae) from southern Atlantic Forest, Brazil, Zootaxa 4851 (2), pp. 386-400 : 396-397

publication ID

https://doi.org/10.11646/zootaxa.4851.2.11

publication LSID

lsid:zoobank.org:pub:3F1C604F-22B1-43AD-8520-0A1B47E25843

DOI

https://doi.org/10.5281/zenodo.4407921

persistent identifier

https://treatment.plazi.org/id/038B87C4-9D60-FFFD-3094-BE5CCB9E5D24

treatment provided by

Plazi

scientific name

Xiphocentron (Antillotrichia) maracanan Vilarino, Cavalcante, Dumas & Nessimian 2018
status

 

Xiphocentron (Antillotrichia) maracanan Vilarino, Cavalcante, Dumas & Nessimian 2018  

Figs 27–31 View FIGURES 27–31 , 32–38 View FIGURES 32–38 , 39 View FIGURE 39

Material examined. BRAZIL— Bahia: 1♂ ( UFBA) Varzedo: Faz. Baixa da Areia ; Malaise trap; 9.iv.2015; ES Dias   & R Campos leg. 10♂♂ ( UFBA) Camacan: Serra Bonita ; 15°23′2″S, 39°33′56″W; 820 m; Malaise I;. iv.2011. Espírito Santo GoogleMaps   : 1♂, 1♀ ( DZRJ) Pinheiros: Reserva Biológica Córrego dos Veados, Riacho Água Limpa ; 10.ii.2009; APM Santos leg.   1♂ ( DZRJ) Domingos Martins: Pedra Azul, Rota do Lagarto ; 20º23′36″S, 41º01′01.2″W, 1170 m; 31.iii.2011; LL Dumas GoogleMaps   , CA Jardim leg. Minas Gerais: 6 ♂♂, 13♀♀ ( UFMG) Nova Lima: Mata , 19°58′7.4″S, 43°51′22.7″W, 29.xi–13.xii.2015; Malaise trap; AR Lima leg. GoogleMaps   Rio de Janeiro: 1♂ ( DZRJ) Itatiaia: Penedo , afluente do rio das pedras; S22º25′02″, W44º32′50″, 689 m; 06.iii.2008; LL Dumas, MR de Souza, RB Braga, JL Nessimian leg.   1♂ ( DZRJ) Rio de Janeiro: Parque Nacional da Tijuca ; S22°56′48.9″, W43°17′32.3″; 11.x.2014; BM Silva, LL Dumas, JL Nessimian , KA Estevão & F Quintarelli leg.  

Distribution. Brazil (Bahia [new record], Espírito Santo [new record], Minas Gerais [new record] and Rio de Janeiro states) ( Fig. 39 View FIGURE 39 ).

Remarks. Xiphocentron maracanan   can be differentiated from its congeners by the posterior margin of tergum IX, which has acute lobes separated by a deep V-shaped incision ( Figs 32, 35, 37 View FIGURES 32–38 ); and the inferior appendage with an angulate, elbow-shaped region covered with small spines on the inner face, and bearing a small mesal sclerite ( Figs 33, 34, 36, 38 View FIGURES 32–38 ).

Some variations were found in the specimens studied. The morphotypes from Bahia state (forewing length 3.6–3.7 mm) have a slightly broader preanal appendage than the morphotypes collected in other states ( Figs 32–34 View FIGURES 32–38 ). The morphotype from Espírito Santo state (forewing length 3.7 mm) has the inferior appendage slightly shorter ( Fig. 36 View FIGURES 32–38 ). Some specimens from Espírito Santo and Minas Gerais states have a narrowing region immediately beyond the nygma in forewing fork II ( Figs 29–30 View FIGURES 27–31 ), in Minas Gerais state (forewing length 3.4–3.5 mm), in the same location, specimens with and without the narrowing region in fork II were found, showing that there is a variation in this character. This narrowing region forming a small cell enclosing the nygma on the forewing was described for X. acqualume   , X. jaguare   , X. steffeni   , and X. ilionea   and is also present in some Oriental species of Cnodocentron   ( C. brogimarus Malicky & Chantaramongkol 1992   , C. tchaturbhuja Schmid 1982   , and C. vrisaparvan Schmid 1982   ).

R

Departamento de Geologia, Universidad de Chile

CA

Chicago Academy of Sciences

UFMG

Universidade Federal de Minas Gerais

BM

Bristol Museum