Neolyrium duidaense, Kazantsev, Sergey V., 2005

Kazantsev, Sergey V., 2005, beetles with 10 ­ segmented antennae (Coleoptera: Lycidae), Zootaxa 1064, pp. 51-64 : 56-57

Neolyrium duidaense sp. n.

( Figs. 1–13 )

Description. Male. Dark brown. Ultimate antennomere, pro­ and mesothorax, pro­ and mesocoxae and pro­ and mesotrochanters yellow.

Head with deep paired impression behind antennal prominence. Eyes moderately large (interocular distance ca. 2 times as long as the radius Fig. 3 ). Antenna almost attaining to elytral middle ( Fig. 1 ); antennomere 3 16X longer than antennomere 2 and 1.1X shorter than antennomere 4 ( Fig. 4 ); antennal hairy pubescence short and decumbent, scaliform pubescence relatively dense.

Pronotum transverse (1.8 times wider than long), trapezoidal; both anterior and posterior margins conspicuously emarginated medially; hind angles long and acute ( Fig. 1 ). Scutellum with slightly emarginated distally postnotal plate ( Fig. 5 ).

Elytra long, 4.4X longer than wide at humeri and 10.3X longer than pronotum, slightly widenening posteriorly, with equally developed primary costae 2 and 4, each reaching elytral apices, costa 1 weak in proximal and obsolete in distal halves ( Fig. 1 ).

Spiculum gastrale about as long as distal portion of sternite 9 ( Fig. 10 ). Aedeagus with straight slender median lobe, short roundish parameres and elongate phallobase ( Figs 12– 13 ).

Length: 6.8 mm. Width (humerally): 1.4 mm.

Female. Unknown.

Type material. Holotype male: Venezuela, Mt. Duida, XI.1929 (AMNH).

Diagnosis. Neolyrium duidaense sp. n. is easily differentiated from N. carltoni sp. n., the only other known species of the genus, by the greater size, different coloration, short parameres of the aedeagus ( Figs 12–13 ).

Etymology. The name is derived from Cerro Duida (Amazon, Venezuela), where the unique specimen of the new species was collected.

Biology. No biological data on Neolyrium duidaense is available.

Figures

FIGURES 1 – 5. Details of Neolyrium duidaense sp. n. 1 — habitus; 2 — head, ventrally; 3 — same, dorsally; 4 — antennomeres 1 – 4, ventrally; 5 — mesoscutum, dorsally.

FIGURES 6 – 8. Details of Neolyrium duidaense sp. n. 6 — thorax, ventrally; 7 — metathorax, dorsally; 8 — hind wing.

FIGURES 9 – 13. Details of Neolyrium duidaense sp. n. 9 — middle leg; 10 — sternite 9; 11 — tergites 9 and 10; 12 — aedeagus, ventrally; 13 — same, laterally.