Reinmara atlantica, Laurent, Ryan A. St, Herbin, Daniel & Mielke, Carlos G. C., 2017

Laurent, Ryan A. St, Herbin, Daniel & Mielke, Carlos G. C., 2017, Revision of the genus Reinmara Schaus, 1928 (Lepidoptera, Mimallonoidea, Mimallonidae) with the descriptions of four new species from South America, ZooKeys 677, pp. 97-129 : 103-105

Reinmara atlantica sp. n. Figs 8, 24, 36

Type material.

Holotype, ♂. BRAZIL: Espírito Santo: BRASIL: ES, Linhares. 40 m, 05-09.iv.1992, V.O.Becker Col/ Col. BECKER 82019/ USNM-Mimal: 2208/ St Laurent diss.: 11-1-16:6/ HOLOTYPE ♂ Reinmara atlantica St Laurent, Herbin, & C. Mielke, 2017 [handwritten red label]/ (ex- USNM, DZUP). Type locality: Brazil, Espírito Santo, Linhares.

Paratypes.

(3 ♂ total) BRAZIL: Espírito Santo: 2 ♂, same data and Becker number as the holotype, USNM-Mimal: 2209-2210, St Laurent diss.: 11-1-16:7 (USNM). 1 ♂, same data and Becker number as holotype (VOB).

Diagnosis.

Reinmara atlantica is very similar to R. enthona but is darker brown, usually slightly smaller, and has narrower forewings. Also, the light gray medial suffusions are mostly restricted to area along the postmedial line, especially near the costa, and are not present throughout the medial region as in R. enthona . The postmedial line is slightly angled toward the costa at Rs4 in R. atlantica , not interrupted there in R. enthona . The genitalia can be recognized by the narrower valves and smaller gnathos extensions relative to the whole of the genitalia. Perhaps the most reliable character differentiating these two species is the reduced size of all four diaphragmal sacs, especially noticeable in the lower right sac which is very reduced in comparison to that of R. enthona , and hardly extends inward toward the body cavity, whereas this huge sac in R. enthona extends well into the body cavity past the vincular ring.

Description.

Male.Head: As for genus, but light brown in color. Thorax: Coloration as for head. Legs: Coloration as for thorax, vestiture thick, long. Forewing dorsum: Forewing length: 19-20 mm, avg.: 19.7 mm, wingspan: 35-36 mm, n=3. Triangular, outer margin concave below apex; tornus notched, apex somewhat falcate. Ground color rich brown, very sparsely scattered with tiny, dark-brown, petiolate scales. Ante- and medial areas lighter brown than darker brown submarginal area, lighter gray scales present near costa on both sides of postmedial line, but more expansive on inner side with narrow strip of suffusion scales along postmedial line, fading before anterior wing margin, small patch of light-gray scales also present in antemedial area. Antemedial line almost nonexistent. Discal spot dark ovoid mark, surrounded by pale-gray scales. Fringe coloration lighter with nearly white trailing edge. Forewing ventrum: Similar to dorsum but more homogenously brown overall with very obvious black splotch at costa where postmedial line meets it. Antemedial line absent, postmedial reduced to traces. Hindwing dorsum: Notch on anterior margin weak, patterning as for forewing dorsum, but antemedial line absent, discal mark and postmedial line weakly defined. Hindwing ventrum: Following same pattern as forewing ventrum but traces of postmedial line outwardly bent mesally. Abdomen: Coloration as for thorax. Genitalia: (Fig. 24) n=2. Typical of genus, very similar to that of R. enthona but gnathos size reduced relative to whole of genitalia, diaphragm sacks much smaller overall especially lower right sac, which barely extends into body cavity past vincular ring, valves slightly narrower. Female. Unknown.

Distribution

(Fig. 36). Reinmara atlantica is known only from the type locality in Espírito Santo, Brazil near sea level in the Atlantic Forest.

Etymology.

This new species is named for the type locality, which is situated very near to the Atlantic coast of Brazil.

Remarks.

Despite an abundance of Mimallonidae material from the Brazilian Atlantic Forest in collections visited during the course of this research (see list in Methods), the four specimens from Linhares were the only R. atlantica material located from this hyperdiverse biome. This species may be much more restricted within this biome than other species in the family that are also endemic to the Brazilian Atlantic Forest.