Costalampys tricolor (Gorham, 1880),

da Silveira, Luiz Felipe Lima, Roza, Andre Silva, Vaz, Stephanie & Mermudes, Jose Ricardo M., 2021, Description and phylogenetic analysis of a new firefly genus from the Atlantic Rainforest, with five new species and new combinations (Coleoptera: Lampyridae: Lampyrinae), Arthropod Systematics & amp; Phylogeny 79, pp. 115-150: 115

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Costalampys tricolor (Gorham, 1880)

comb. nov.

Costalampys tricolor (Gorham, 1880)  comb. nov. Figs 21A-MView Figure 21, 22View Figure 22

Lucidota tricolor  Gorham, 1880:21 (desc.); Blackwelder, 1945:355 (cat.); McDermott, 1966:69 (cat.).

Lucidota oculata  Olivier, 1886: 4 (desc.); Pic, 1938:27 (key); Blackwelder, 1945:354 (cat.); McDermott, 1966:67 (cat.).

Ethra decorata schneideri  Pic, 1938:27 (desc.); Blackwelder, 1945:353 (cat.); McDermott, 1966:86 (cat.).

Diagnostic description.

Overall dark brown. Pronotal disc (Fig. 21A, FView Figure 21) from having paired pink spots to entirely pink, pronotal expansions dark brown, often brighter at anterior corners. Elytron (Fig. 21A, CView Figure 21) dark brown with a pale yellow longitudinal stripe about 4/5 × as long as elytron. Legs (Fig. 21BView Figure 21) dark brown, except for trochanters and femora, which are light brown. Sternum VIII (Fig. 21GView Figure 21) brown, without lateral vitreous spots. Pygidium (Fig. 21HView Figure 21) brown.

Pronotum with sides rounded, divergent posteriorly. Male. Total length = 9.5-10.7 mm (aver. 10.1 mm); Pronotal length = 1.9-2.1 mm (aver. 2.0 mm); Pronotal width = 3.0-3.0 mm; Elytral length = 7.3-8.1 mm (aver. 7.6 mm); Elytral width = 1.9-2.0 mm (aver. 1.95 mm). Antennomere III (Fig. 21EView Figure 21) with lamella about 2 × longer than core antennomere. Sternum VI (Fig. 21B, GView Figure 21) with lantern of moderate size, as wide as 1.4 sternum, almost reaching its anterior margin. Sternum VIII (Fig. 21GView Figure 21) with posterior margin bisinuose. Pygidium (Fig. H) with sides rounded, posterior corners weakly developed, posterior margin rounded to almost straight. Syntergite (Fig. 21I, JView Figure 21) boomerang-shaped (with anterior margin strongly curved). Phallus (Fig. 21K-MView Figure 21) with dorsal plate bent dorsally (lateral view), with sides rounded at apical half, with an acute apical projection, medially notched. Paramere apex curved ventrally, ventral projection (lateral view) well developed, almost right-angled. Female (Fig. 21C, DView Figure 21). Total length = 9.4-10.8 mm (aver. 10.1 mm); Pronotal length = 1.9-2.5 mm (aver. 2.2 mm); Pronotal width = 2.9-3.6 mm (aver. 3.25 mm); Elytral length = 7.4-8.4 mm (aver. 7.9 mm); Elytral width = 1.8-2.0 mm (aver. 1.9 mm). Antennomeres III-X with apical corners almost right-angled, not projected, sterna VI with a small lantern, as wide as 1.6 sternum, not reaching anterior margin.


Gorham (1880) described Lucidota tricolor  from Brazil, but provided no further provenance data, based on a male specimen provided by the French naturalist Chevrolat. Gorham (1880) didn’t give an explicit etymology for Lucidota tricolor  , but we assume it was based on the Latin word for "with three colors", referring to its color pattern. Olivier (1886) described Lucidota oculata  based on a single female specimen from Matosinhos, Minas Gerais, Brazil: The said author didn’t give an explicit etymology for Lucidota oculata  , but we assume Lucidota oculata  comes from the Latin adjective that means "with eyes", referring to the pronotal spots.

Pic (1938) described Ethra decorata schneideri  from Brazil, without further details. The holotype of Ethra decorata schneideri  Pic, 1938 is presumed here based on a specimen in M. Pic’s collection ( MNHN) that was labeled as " Lucidota oculata  E Ol" and "var. Schneideri ". We based our inference on the combination of the following observations: (i) the aforementioned specimen in Pic’s collection was labeled as “type”; (ii) we found no description of a species or variety named L. oculata var. Schneideri  Pic; and (iii) Pic described Ethra decorata var. schneideri  in a paper about mimetism among some lampyrid species with similar dorsal color pattern, including both Lucidota oculata  Olivier and Ethra decorata  Olivier ( Pic 1938), and his description given for his new variety fits the latter, but not the former. Furthermore, Pic (1938) regarded Lucidota  spp. as having antennae long and compressed but with no lamellae, whereas Ethra  spp. had flabellate antennae (a trait found in the presumed holotype). Together, these observations support our inference that our presumed holotype of Ethra decorata var. schneideri  is the holotype, that nevertheless was mislabeled. The latter must be deemed as a subspecies according to ICZN article ICZN Art. 45.6.4, therefore Ethra decorata schneideri  Pic, 1938 (according to Art. 5.2).

After the study of the type materials, we synonymize here Lucidota oculata  Olivier, 1886 and Ethra decorata schneideri  Pic, 1938 with Lucidota tricolor  Gorham, 1880, which has priority over time. After our phylogenetic analysis, we transfer Lucidota tricolor  Gorham, 1880 to Costlampys  gen. nov. (see section 3.2).

Costalampys tricolor  (Gorham, 1880) comb. nov. is most similar to C. bella  sp. nov., as the two species share a similar dorsal color pattern (overall brown or dark brown, with pronotal disc with paired pink vittae to broadly pink, and with an elongate pale-yellow spot on elytron). It differs from C. bella  sp. nov. by the rounded sides of pronotum in both sexes (almost straight in C. bella  sp. nov.), the pygidium with posterior margin rounded to almost straight in males (mucronate in C. bella  sp. nov.), as well as by the presence of lanterns in sternum VI in the females (absent in C. bella  sp. nov.).

Costalampys tricolor  (Gorham, 1880) comb. nov. was previously known from Brazil, without further details. Here, we provide more detailed information on the geographic and temporal occurrence of the species.


Holotype of Lucidota tricolor  Gorham, 1880: BRAZIL: 1♂, #292 ( MNHN, col. Gorham; formerly in col. Chevrolat col). With label handwritten "tricolor Chev. sec. Chev." (in the species original description, Gorham [1880] thanks Chevrolat for the "specimen described"). Holotype of Lucidota oculata  Olivier, 1886: BRAZIL: Minas Gerais: 1♀, Matosinhos, 03.04.1885, Gounelle col. ( MNHN, col. E. Olivier). Holotype of Ethra decorata schneideri  Pic, 1938: BRAZIL: Rio de Janeiro: 1♂, Teresópolis, F. Schneider col. ( MNHN, col. M. Pic) (see remarks above).

Material examined.

BRAZIL: Minas Gerais: 1♀  , Bocaina de Minas, Ribeirão Santa Casa, prox. Cachoeira da Raposa , 22°18 ’24.7” S, 44°33 ’54” W, 1294 m, M&M col. (DZRJ)GoogleMaps  ; 1♀, Itajubá, R.B.M. Serra dos Toledos , coleta diurna, 08.XI.2015, Rosa & Ladenthin col. (DZRJ)  ; 1♂, 16.II.-17.III.2017, Rosa & Lopes col. (DZRJ); 1♀, Sao Roque de Minas , P.N. Serra da Canastra, Malaise trap, Mata ciliar, Ponto 1  , 3♂, 14-19.XII.2013, Melo & Rosa col. (DZRJ). Rio de Janeiro: 1♂  , Angra dos Reis, PE Ilha Grande , Malaise trap, P450A (23°08 ’47.2” S, 44°11 ’09.4” W), 441 m, IX.2017, L. Campello, L. Silveira & R. Queiroz col. (DZRJ)GoogleMaps  ; 1♀, Itatiaia, P.N. Itatiaia , PENSARIOP2 (22°25 ’59,6” S, 44°37 ’39,7” W, 1280 m), Malaise trap, I.2015, R. Monteiro col. (DZRJ)GoogleMaps  ; 1♂, 1♀, Teresópolis, P.N. Serra dos Órgãos, 03-05.XI.2014, 1200 m, active search [afternoon], L. Silveira col. (DZRJ)  . Paraná: 1♂  , Curitiba , 28-XII.1976, V. Graf col. ( DZUP)  ; 1♂, Curitiba , 12.69, Mielke col. ( DZUP)  ; 1♀, Tijucas do Sul, Vossoroca , 25. I, Pe. Moure & Marinoni col. ( DZUP)  ; 1♀, Ponta Grossa, Jardim Carvalho , 25°4 ’39.15” S, 50°9 ’24” W, 05.I.2014, Nascimento, E.A. col. (UECO)GoogleMaps  ; 1♂, Ponta Grossa, Parque Nacional dos Campos Gerais, Morro do Castelo , 25°6 ’13.90” S, 49°56 ’36.38” W, 15.I.2014, Nascimento, E.A. & eq. col. (UECO)GoogleMaps  ; 1♂, 1♀, Ponta Grossa , em copula [in copula], 12.55, M. Vilella col. ( DZUP)  ; Rio Grande do Sul: 1♂, 1♀, Caxias do Sul, Vila Oliva, in copula, 19.2.49 (MAPA)  ; 1♂, Esmeralda , 12.XII.1978, C. J. Becker leg. (MCZ)  .










Costalampys tricolor (Gorham, 1880)

da Silveira, Luiz Felipe Lima, Roza, Andre Silva, Vaz, Stephanie & Mermudes, Jose Ricardo M. 2021

Lucidota tricolor

da Silveira & Roza & Vaz & Mermudes 2021

Lucidota oculata

da Silveira & Roza & Vaz & Mermudes 2021

Ethra decorata schneideri

da Silveira & Roza & Vaz & Mermudes 2021