Serrania Species-group

Hopp, Katie J. & Ivie, Michael A., 2009, A Revision Of The West Indian Genus Nesocyrtosoma Marcuzzi (Coleoptera: Tenebrionidae), The Coleopterists Bulletin (mo 8) 63, pp. 1-138: 57-59

publication ID

http://doi.org/ 10.1649/0010-065x-63.sp8.1

persistent identifier

http://treatment.plazi.org/id/457F4C06-A836-FFCA-E071-FDE5D0A4B03A

treatment provided by

Carolina

scientific name

Serrania Species-group
status

 

Serrania Species-group   — Extant Species

Two species are redescribed and 12 new species are described for the first time.

Species are listed in phylogenetic order.

Nesocyrtosoma bankense Hopp and Ivie   , New Species ( Figs. 2 View Figs , 11 View Figs , 62 View Figs , 189–193 View Figs , 268 View Figs , 293 View Figs )

Type Material. HOLOTYPE: Male. VIRGIN IS: St. John; Cinnamon Bay; 03JAN1993, at light; VIBFP colrs. (from WIBF, deposited NMNH). PARA- TYPES (20 specimens, males only): 2 specimens with same label data as holotype. (2 WIBF). VIRGIN IS: St. John ; VINP, Cinnamon Bay ; 02NOV1992, at light; VIBFP colrs. (1 WIBF). VIRGIN IS: St. John ; Est. Great CinnamonBay; Cinnamon Bay , at light; 02NOV1992. M. A. Ivie. (2 WIBF). VIRGIN IS: St. John ; Estate Cinnamon Bay ; VINP, Cinnamon Bay ; 04NOV1992, at light; M. A. Ivie colr. (1 WIBF). VIRGIN IS: St. John ,; Cinnamon Bay ; 23-vi-1996 beating; B.andB. Valentine. (2 WIBF). VIRGIN IS: St. John ; Est. Lameshur Bay ; V. I.Ecol.Res.Sta.; 14–21 JULY 1994; M. S. Becker, uv light. (2 WIBF). VIRGIN IS: St. John ; Lameshure Bay , VIERS; 21–28 JULY 1994; M. S. Becker colr; ultraviolet light. (1 CMNH). VIRGIN IS: St. John ; Est. Lamesur Bay , nr.; Lameshur Bay , Reef Bay ; Trail, 14OCT1994, beat.; vines, M. A. Ivie and L. L. Ivie. (2 WIBF). VIRGIN IS: St. John ; Est. Lameshur Bay ; Europa-Lt. Lameshur; Bay, 25JULY1994; M. S. Becker, at night. (1 WIBF). VIRGIN IS: St. Thomas ; Est. Enighed Magen’s; Bay Arboretum. light; 01JAN1993. VIBFP colrs. (2 WIBF). VIRGIN IS: St. Thomas ; Est. Enighed Magen’s; Bay Arboretum. 01JAN; 1993. VIBFP colrs/ Nesocyrtosoma   ; Det. J. Doyen 1995. (1 FSCA, 1 WIBF). PUERTO RICO: Guanica; For.Res. 26SEP1987; M.A.Ivie colr. 33m; beating, thornscrub. (3 WIBF).  

Other Material Examined (females). VIRGIN IS: St. Thomas ; Est. Enighed Magen’s; Bay Arboretum. 01JAN; 1993. VIBFP   colrs. (3 WIBF). VIRGIN IS: St. John ; Cinnamon Bay; 03JAN1993, at light; VIBFP   colrs. (2 WIBF). VIRGIN IS: St. John ; Est. Lameshur Bay; V   . I. Ecol.Res.Sta.; 14–21 JULY   1994; M. S. Becker, uv light. (1 WIBF). PUERTO RICO: Guanica; For.Res. 26SEP1987; M. A. Ivie colr. 33m; beating, thorn scrub. (1 WIBF). PUERTO RICO; Hwy. 371, Km. 10; July25, 1979; C.W. O’Brien / under bark. (1 WIBF). PUERTO RICO; Hwy. 371, Km. 10; July 25, 1979; L.B. O’Brien. (1 WIBF). Poncee P. R   .; VII-21- 33; Rcoa Kley / on leaf; of Moca; SJ # 4363. (1 NMNH). PUERTO RICO: Guanica; For.Res. 26SEP1987; M.A.Ivie colr. 33m; beating, thornscrub. (2 WIBF). PUERTO RICO; CambalacheForest; Res., July 28,1979; C.W.O’Brien. (1 MCZC)   .

Notes. Although the females of this species can be identified, they can be easily confused with Nesocyrtosoma puertoricense   , and are thus not designated as paratypes.

Diagnosis. This species can be distinguished from all other species by the combination of the dark ferrugineous to black color, deeply impressed elytral striae ( Fig. 189 View Figs ), absence of a hypomeral bead, antennomeres 7–10 enlarged, presence of an ocular depression ( Fig. 193 View Figs ), intercoxal process of first ventrite with apical nipple ( Figs. 76 View Figs , 192 View Figs ), and the very weak to absent longitudinal grooves on the tibiae. It is nearly identical to N. puertoricense   and N. curvum   , but can be distinguished from the former by the weak to absent longitudinal grooves on the tibiae and the male metatibia. Males of N. bankense   have a ventral metatibial tooth proximad apex ( Fig. 62 View Figs ), while the males of N. puertoricense   have a ventral metatibial tooth at the apex ( Fig. 64 View Figs ). Nesocyrtosoma bankense   can be distinguished from N. curvum   by the antenna and male metatibia. Nesocyrtosoma bankense   has antennomeres 7–10 enlarged and the male metatibia is slender, gradually curved toward the apex with a tooth proximad apex ( Fig. 62 View Figs ), whereas N. curvum   has antennomeres 6–10 enlarged and the male metatibia is broad and abruptly emarginate towards the apex ( Fig. 69 View Figs ).

Description (male). 4.0– 5.5 mm long, 2.0–3.0 mm wide. Small, moderately convex, elytra widest in apical half, tapered at apex ( Figs. 189, 190 View Figs ). Dark ferrugineous to black; antennae, mouthparts, and tarsi ferrugineous. Head densely variably punctate dorsally; largest punctures larger than a single eye facet, weakly to moderately impressed; extremely short golden seta emerging from each puncture. Antenna clavate, antennomeres 7–10 weakly widened apically, forming a loose club; apical antennomere subcircular; antennomeres 7–11 with stellate sensoria. Mentum with acute median keel, anteriorly raised to a point ( Figs. 10, 12 View Figs ). Ventral portion of eye not reaching subgenal sulcus ( Fig. 8 View Figs ); ventral ocular groove present ( Fig. 193 View Figs ); postgena without distinct punctures. Dorsal surface of pronotum densely punctate; punctures separated by 0.5–1.0 diameters. Pronotal marginal bead complete laterally, anterior margin with marginal bead effaced medially, posterior margin lacking marginal bead; anterior angles of pronotum right, weakly produced and widely rounded apically; lateral edge of pronotum evenly curved to base; pronotum evenly convex ( Fig. 191 View Figs ). Hypomeron without distinct punctures. Prosternal process apically rounded, with distinct marginal grooves opposite coxae joined apically ( Fig. 192 View Figs ). Elytral striae deeply impressed, present as rows of small punctures separated by 0.5–1.0 3 diameter, with a deeply impressed line through the middle of the punctures, connecting the row of punctures; elytral interstriae roundly convex, scarcely punctate, shagreened; scutellary striae 4–6 punctures long, nearly reaching the elytral suture; scutellum triangular, normal ( Figs. 189, 191 View Figs ). Mesoventrite broad antero-posteriorly, Ushaped, excavate, receiving prosternal process; metaventrite subequal to anteropostero length of mesocoxa ( Fig. 192 View Figs ). Metathoracic wing fully developed. Legs short, punctate; femora barely reaching beyond edge of elytra; tibia slightly shorter than femur; tibial dorsal longitudinal groove very faint or absent; metatibia with tooth proximad apex ( Fig. 62 View Figs ). Abdominal depressions on 4th and 5th ventrites reduced to indistinct slits ( Fig. 74 View Figs ); intercoxal process of first ventrite rounded, without apical nipple, not reaching past metacoxa; ventral surface densely punctate, punctures weakly impressed ( Fig. 192 View Figs ).

Female. Identical to male, except metatibia lacking ventral apical tooth.

Biology. This species has been taken by beating dead branches, vines, and thorn scrub at night in dry tropical forest, at light, under bark, and on a leaf.

Distribution. This species is known from the Virgin Islands of St. John and St. Thomas ( Fig. 268 View Figs ). It has been collected on Great Cinnamon Bay and Lameshur Bay on St. John and the Magen’s Bay Arboretum Estate Enighed on St. Thomas. It is also known from the Guánica Forest Reserve in southwestern Puerto Rico ( Fig. 268 View Figs ).

Etymology. This is the only species of Nesocyrtosoma   known to occur on several islands of the Puerto Rican Bank, and is thus called bankense   .

WIBF

West Indian Beetle Fauna Project Collection

NMNH

Smithsonian Institution, National Museum of Natural History

V

Royal British Columbia Museum - Herbarium

CMNH

The Cleveland Museum of Natural History

FSCA

Florida State Collection of Arthropods, The Museum of Entomology

R

Departamento de Geologia, Universidad de Chile