Amydetes marolae Campello, Vaz, Mermudes & Silveira, 2022

Campello, Lucas, Vaz, Stephanie, Mermudes, Jose R. M., Ferreira, Andre L. D. & Silveira, Luiz F. L., 2022, Comparative morphology and key to Amydetinae genera, with description of three new firefly species (Coleoptera, Lampyridae), ZooKeys 1114, pp. 131-166 : 131

publication ID

https://dx.doi.org/10.3897/zookeys.1114.77692

publication LSID

lsid:zoobank.org:pub:D865EE03-6617-4BA1-8064-BBEE3AC72758

persistent identifier

https://treatment.plazi.org/id/66B2F83B-E050-43F0-9E1B-2BCC8525DCB5

taxon LSID

lsid:zoobank.org:act:66B2F83B-E050-43F0-9E1B-2BCC8525DCB5

treatment provided by

ZooKeys by Pensoft

scientific name

Amydetes marolae Campello, Vaz, Mermudes & Silveira, 2022
status

sp. nov.

Amydetes marolae Campello, Vaz, Mermudes & Silveira, 2022 sp. nov.

Figs 9 View Figure 9 , 10 View Figure 10 , 11 View Figure 11 , 12 View Figure 12

Etymology.

The specific epithet Amydetes marolae is a feminine noun in the genitive case. This species is named in honor of our colleague and friend, Raquel Santos Soares Queiroz, alias “Marola”, who helped us collect the type specimens.

Diagnosis.

Antennae with scape and pedicel yellowish brown (Fig. 10G View Figure 10 ), flagellum light brown (Fig. 10G View Figure 10 ); pronotum yellowish brown (Fig. 11A-D View Figure 11 ); abdomen dark brown, with sternites VI-VIII translucent (Figs 9A View Figure 9 , 12E View Figure 12 ), pygidium dark brown with a translucent posterior line (Fig. 12F View Figure 12 ); antennae with 32-41 antennomeres (Fig. 10G View Figure 10 ); antennomere III with flabellum 2 × longer than antennomere III; antennomere III as long as scape (Fig. 10G View Figure 10 ); maxillary apical palpomere 10 × longer than III (Fig. 10A, B View Figure 10 ); hypomeron as long as tall (Fig. 11C View Figure 11 ); sternite VIII with posterior margin bisinuate, central 1/3 slightly shorter than posterolateral angles (Fig. 12E View Figure 12 ); lanterns occupying almost the entire area of sternite VI and VII (Fig. 9A View Figure 9 ).

Description.

Male. Coloration. Antennae with scape and pedicel yellowish brown (Fig. 10G View Figure 10 ), flagellum pale brown (Fig. 10G View Figure 10 ); pronotum yellowish brown (Fig. 11A-D View Figure 11 ); abdomen dark brown, with sternites VI- VIII translucent (Figs 9A View Figure 9 , 12E View Figure 12 ), pygidium dark brown with a translucent posterior line (Fig. 12F View Figure 12 ). Head. Antennae flabellate with 32-41 antennomeres (Fig. 10G View Figure 10 ); antennomere III as long as pedicel, with flabellum 2 × longer than antennomere III (Fig. 10G View Figure 10 ). Fronto-clypeus as wide as 1.5 × distance between antennifers process (Fig. 10C View Figure 10 ). Maxillary palpomere I as long as wide; II 2 × longer than wide, III approximately 0.1 × of IV length (Fig. 10A-F View Figure 10 ). Gular margins separated by 1/3 maxillary palpomere IV length (Fig. 10B View Figure 10 ). Thorax. Pronotum 1.5 × wider than head width in ventral view (Fig. 9A View Figure 9 ), 1.5 × wider than long (Fig. 11A, B View Figure 11 ). Hypomeron as long as tall (Fig. 11C View Figure 11 ). Abdomen. Lanterns occupying almost the entire area of sternite VI and VII (Fig. 9A View Figure 9 ). Sternite VIII with posterior margin bisinuate, central 1/3 slightly shorter than posterolateral angles (Fig. 12E View Figure 12 ). Pygidium with a translucent posterior line (Fig. 12F View Figure 12 ). Phallus 1.5 × longer than parameres (Fig. 12A-C View Figure 12 ); parameres basally constricted, as long as phallobase (Fig. 12A View Figure 12 ); phallobase asymmetrical (Fig. 12A, C View Figure 12 ).

Females and immature stages. Unknown.

Biology.

One hundred forty-six individuals were collected in hilly areas of the Ilha Grande State Park (Fig. 1 View Figure 1 ) between 160-660 m a.s.l. in 2017 and 2018. The highest abundance was observed between 160-170 m a.s.l. This species has a continuous blue-green glow. Males fly between 0.1 and 4 m above ground level, bending their abdomens downward, possibly to light the ground in search of females, (as in other Amydetes spp.; Vaz et al. 2021); they sometimes flying upwards towards the forest canopy. They are apparently active in the first hours of complete darkness. About 5-10 males were observed flying together in the same visual field.

Remarks.

Amydetes marolae sp. nov. is similar to A. bellorum , with which it shares the following combination of traits: labrum connected to fronto-clypeus by membrane; maxillary palpomere IV at least 6 × longer than III (up to 7 × in A. bellorum , and at least 10 × in A. marolae sp. nov.); hypomeron as long as tall; and sternite VIII bisinuate. Nevertheless, Amydetes marolae sp. nov. differs from A. bellorum by: body length (average = 0.67 mm [n = 10, range = 0.6-0.8] in A. marolae and 0.87 mm [n = 10, range = 0.8-1.0] in A. bellorum ); pygidium (entirely dark brown in A. bellorum , dark brown with a translucent posterior line in A. marolae sp. nov.).

Amydetes marolae sp. nov. occurs in a mountainous and coastal region of the Serra do Mar range, where it is found between 160 and 660 m a.s.l., with greater abundance in parts below to 400 m a.s.l. Despite extensive sampling (e.g., Silveira et al. 2020), A. marolae sp. nov. has never been collected anywhere other than Ilha Grande, unlike A. bellorum which does not occur on Ilha Grande. Ilha Grande is separated by approximately 3 km from the mainland, which may be an important barrier to dispersal, especially considering that Amydetes females are perhaps flightless ( Silveira and Mermudes 2014a). As such, A. marolae sp. nov. is regarded here as probably endemic to Ilha Grande.

Materials examined.

Holotype: Brazil • Rio de Janeiro: Angra dos Reis: Parque Estadual da Ilha Grande, Pico do Papagaio ; 23°09'05.8"S, 44°11'19.9"W; 660 m a.s.l.; ♂; Apr. 2018; L. Campello, L. Silveira, R. Queiroz, S. Vaz leg. (DZRJ) GoogleMaps . Paratypes: Brazil • Rio de Janeiro: Angra dos Reis: Parque Estadual da Ilha Grande, Estrada para Dois Rios, Poco do Soldado ; 23°10'04.7"S, 44°11'03.5"W; 160 m a.s.l.; 7 ♂ GoogleMaps ; Jul. 2018; L. Campello, L. Silveira, S. Vaz, R. Queiroz leg. (DZRJ) • same data as for preceding; 2 ♂ GoogleMaps ; Sep. 2017 (DZRJ) • same data as for preceding; 2 ♂ GoogleMaps ; Oct. 2017 (DZRJ) • same data as for preceding; 2 ♂ GoogleMaps ; Dec. 2017 (DZRJ) • same data as for preceding; 24 ♂ GoogleMaps ; Mar. 2018 (DZRJ) • same data as for preceding; 11 ♂ GoogleMaps ; Apr. 2018 (DZRJ) • same data as for preceding; 20 ♂ GoogleMaps ; May. 2018 (DZRJ) • same data as for preceding; 11 ♂ GoogleMaps ; Jun. 2018 (DZRJ) • same data as for preceding; 18 ♂ GoogleMaps ; Aug. 2018 (DZRJ) • same data as for preceding; 1 ♂ GoogleMaps ; Nov. 2018 • same data as for preceding; 23°10'05.7"S, 44°11'04.0"W; 170 m a.s.l.; 1 ♂ GoogleMaps ; Sep. 2017; (MNRJ) • same data as for preceding; 1 ♂ GoogleMaps ; Oct. 2017 (MNRJ) • same data as for preceding; 1 ♂ GoogleMaps ; Jan. 2018 (MNRJ) • same data as for preceding; 3 ♂ GoogleMaps ; Apr. 2018 (MNRJ) • same data as for preceding; 7 ♂ GoogleMaps ; May. 2018 (MNRJ) • same data as for preceding; 5 ♂ GoogleMaps ; Jun. 2018 (MNRJ) • same data as for holotype; 23°08'49.9"S, 44°10'51.5"W; 335 m a.s.l.; 1 ♂ GoogleMaps ; Nov. 2017 (MNRJ) • same data as for preceding; 2 ♂ GoogleMaps ; Dec. 2017 (MNRJ) • same data as for preceding; 1 ♂ GoogleMaps ; Feb. 2018 (MNRJ) • same data as for preceding; 1 ♂ GoogleMaps ; Apr. 2018 (MNRJ) • same data as for preceding; 3 ♂ GoogleMaps ; Jul. 2018 (MNRJ) • same data as for preceding; 1 ♂ GoogleMaps ; Aug. 2018 (MNRJ) • same data as for holotype; 23°08'51.5"S, 44°10'52.4"W; 345 m a.s.l.; 3 ♂ GoogleMaps ; Oct. 2017 (MNRJ) • same data as for preceding; 1 ♂ GoogleMaps ; Nov. 2017 (MNRJ) • same data as for preceding; 2 ♂ GoogleMaps ; Jan. 2018 (MNRJ) • same data as for preceding; 1 ♂ GoogleMaps ; Mar. 2018 (MNRJ) • same data as for preceding; 1 ♂ GoogleMaps ; May. 2018 (MNRJ) • same data as for preceding; 5 ♂ GoogleMaps ; Jul. 2018 (MNRJ) • same data as for holotype; 23°08'47.2"S, 44°11'09.4"W; 440 m a.s.l.; 1 ♂ GoogleMaps ; Jun. 2018 (MNRJ) • same data as for preceding; 6 ♂ GoogleMaps ; Aug. 2018 (MNRJ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Lampyridae

Genus

Amydetes