Neoregostoma salazari, Durán & Santos-Silva, 2015

Durán, José Rafael Esteban & Santos-Silva, Antonio, 2015, A new species of Neoregostoma Monné and Giesbert, 1992 from Costa Rica and Panama (Coleoptera, Cerambycidae, Cerambycinae), Insecta Mundi 2015 (413), pp. 1-4 : 2

Neoregostoma salazari sp. nov.

( Fig. 1–6 )

Description. Holotype female ( Fig. 1, 3 ), total length 10.5 mm. General appearance elongate, compressed. Integument orangish-red, except some dark-brown spots, almost black. Head: Elongate, dorsally densely, coarsely punctate, with small curved grooves. Rostrum long; genae wide, somewhat cloven. Mandibles about one-third longer than gena; distal third black. Coronal suture distinct from about middle of inferior ocular lobes to margin of prothorax. Distance between lower eye lobes about equal to that between upper eye lobes. Antennae slightly longer than elytra, reaching base of elytral distal third; scape reddish, coarsely punctate; pedicel and antennomeres II–IV black; antennomeres V–XI slightly lighter; antennomere III longer than scape. Thorax: Prothorax barrel-like, about as long as wide, narrowed apically. Pronotum coarsely, densely, deeply punctate (punctures confluent in some areas); with short, sparse golden setae; with dark longitudinal band on each side of disk, slightly wider from anterior margin to middle, narrowed (mainly at distal fourth) to posterior margin. Scutellum sub-triangular; sides slightly curved inwards. Metepisterna partially black. Elytra: Laterally, sides narrowed at middle; surface coarsely, deeply, abundantly punctate; lateral carinae distinct from base to near apex; apex truncate, outer angle rounded, sutural angle slightly projected; sutural margins smooth, moderately thick, elevated; epipleural margins distinctly finer than sutural; the following parts black: humeri black, as is a narrow, longitudinal, sutural marking in basal 20 to 40 percent, and narrow band at apex. Legs: Robust; setae short, erect, sparse. Femora clavate, moderately short; profemora brown at apex; meso- and metafemora black at apex. Tibiae moderately enlarged towards apex. Tarsomere V darkened next to claws.

Male ( Fig. 4–6 ). Distance between upper eye lobes equal to 0.70 times length of scape; distance between lower eye lobes, in frontal view, equal to 0.65 times length of scape. Antennae reaching distal third of elytra. Metepisterna very coarsely, abundantly punctate. Metasternum laterally very coarsely, sparsely punctate.

Variability. Paratype female ( Fig. 2 ): antennomeres V–XI with orange basal ring; dark central spot of elytra, on suture, greatly reduced; an additional small dark spot on lateral side of elytra, below hind legs. Paratype male: lateral sides of prothorax with small, oblique, narrow dark-brown band; paler colored elytra; a large dark spot laterally on elytra, just below hind legs; apical dark bands on elytra larger.

Type material. Holotype female from COSTA RICA, Alajuela: Puentes de La Fortuna (near Arenal Volcano, Cantón de San Carlos ), 11.V.2013 (on flowers of Casearia aculeata Jacq. ), Marco A. Zumbado leg. ( MIUC), length = 10.5 mm . Paratype female, same place as holotype, 20.V.2013 (on flowers of Casearia aculeata Jacq. ), A. Hamer Salazar leg. ( EDPC), length = 10.8 mm. Paratype male from PANAMA, Panama: Cerro Campana (2000’), 27–29.IV.2009, J. E. Wappes col. ( ACMT), length = 9.9 mm.

Remarks. The general appearance of Neoregostoma salazari is similar to that of N. erythrocallum (Lane, 1940) , but differs as follows: elytra with dark central band close to the suture (sometimes partly absent); pronotum with two dark bands; metafemora shorter, more distinctly thickened; basal third of metafemora orange; and metepisterna with large black area. In N. erythrocallum the elytra lack the dark central band close to the suture, the pronotum has a single, dark central band, the metafemora are longer and less thickened, the basal third of metafemora are dark-brown, and the metepisterna are entirely orange.

Etymology. The new species is named after Alberto Hamer Salazar Rodríguez, professor emeritus at the University of Costa Rica, for his dedication to the systematic investigation of the Class Insecta.

Figures

Figures 1–6. Neoregostoma salazari sp. nov. 1) Holotype female, dorsal view. 2) Paratype female, dorsal view. 3) Holotype female, lateral view. 4) Paratype male, dorsal view. 5) Paratype male, ventral view. 6) Paratype male, lateral view.