Costalampys joanae sp. nov. Silveira, Roza, Vaz & Mermudes

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

Costalampys joanae sp. nov. Silveira, Roza, Vaz & Mermudes Figs 16A-L , 22

Diagnostic description.

Entirely dark brown to black, except by paired pink vittae on pronotal disc (Fig. 16A ), as about as long as 1/2 × disc length, as wide as 1/3 × disc width. Elytron (Fig. 16A ) dark brown to black, without any pale-yellow longitudinal stripe. Legs (Fig. 16B ) dark brown to black. Sternum VIII entirely dark brown, without lateral vitreous spots. Pygidium (Fig. 16F ) entirely dark brown.

Pronotum (Fig. 16D ) with sides rounded, divergent posteriorly. Male. Total length = 10.6 mm; Pronotal length = 2.2 mm; Pronotal width = 3.6 mm; Elytral length = 8.4 mm; Elytral width = 2.3 mm. Antennomere III (Fig. 16C ) with lamella about 4 × longer than core antennomere. Sternum VI (Fig. 16B ) with a small lantern, occupying the medial 1/6 of the sternum, not reaching its anterior margin. Sternum VIII (Fig. 16E ) with posterior margin bisinuose. Pygidium (Fig. 16F ) with sides rounded and abruptly converging posteriorly from basal third on, posterior corners barely visible, posterior margin rounded, somewhat acuminate. Syntergite (Fig. 16G,H ) boomerang-shaped (with anterior margin strongly curved). Phallus (Fig. 16I-L ) with dorsal plate curved dorsally in lateral view, with sides rounded at apical half, slightly convergent apically. Paramere apex almost straight, ventral projection (lateral view) moderately developed, almost right-angled. Female. Unknown.

Remarks.

Costalampys joanae sp. nov. is similar to C. delicata sp. nov., C. decorata (Olivier, 1888) comb. nov., C. tricolor (Gorham, 1880) comb. nov., and C. bella sp. nov., in the dorsal color pattern (overall brown or dark brown, with pronotal disc broadly pink, and with an elongate pale-yellow spot on elytron). Costalampys joanae sp. nov. is unique among the aforementioned species by having a longer antennomere III lamella, which is about 4 × longer than core antennomere, as well as sides of pygidium strongly convergent posteriorly (homogeneously rounded in the other species).

Etymology.

Joanae is named after JRMM’s daughter, Joana. Noun in genitive case.

Type.

Holotype: BRAZIL: Rio de Janeiro: 1♂, Teresópolis, P.N. Serra dos Órgãos, Trilha para abrigo do Açu, 09.I.2014, active search [afternoon], P.M. Souto col. (DZRJ) .

Figures

Figure 16. Costalampys joanae sp. nov. A, Male habitus, dorsal view; B, Male habitus, ventral view; C, Male antenna, lateral view; D, Male pronotum, dorsal view; E, Sternum IX, ventral view; F, Pygidium, dorsal view; G, Syntergite, dorsal view; H, Sternum IX, Ventral view; I, Aedeagus, dorsal view, blue arrow pointing to the transverse keel on the dorsal plate; J, Aedeagus, lateral view; K, Aedeagus, ventral view; L, Aedeagus, oblique view, red arrow pointing to the ventral plate. Scale bar: 2 mm (A-C); Scale bar: 1.0 mm (D-L).

Figure 22. Distribution map of Costalampys gen. nov. species.