Nesocyrtosoma dolosum Hopp and Ivie

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 : 42-45

Nesocyrtosoma dolosum Hopp and Ivie , New Species

( Figs. 51 , 144–147 , 262 , 282 )

Type Material. HOLOTYPE: Male. NE foothills; La Hotte; 2–4,000ft.; Oct 10– 24/ Haiti; 1934; Darlington. ( MCZC) . PARATYPES (4 specimens): 4 specimens with the same label data as holotype. (3 MCZC, 1 WIBF) .

Diagnosis. Although this species is from the exact same locality and was collected on the same date as N. darlingtoni , the males and females of this species can be distinguished from that species and all others by the combination of antennomeres 6–10 weakly widened apically, the flat, apically truncate prosternal process ( Fig. 147 ), lack of circular punctures on the hypomeron, and densely and obviously punctate interstriae ( Figs. 144, 146 ). The males of this species have a ventral setal patch on the mesofemora ( Fig. 152 ), which is absent in the males of N. darlingtoni .

Description (male). 7.5 mm long, 4.5 mm wide. Body elongate, slightly convex ( Figs. 144, 145 ). Glossy dark ferrugineous to purple; antennae, mouthparts, and tarsi tending to be the same color as the legs. Head densely punctate, punctures smaller than a single eye facet, lightly impressed; extremely short golden seta emerging from each puncture. Antenna weakly clavate, nearly filiform; antennomeres 6–10 weakly widened apically, forming a loose, elongate club; apical antennomere longitudinally ovate; antennomeres 6–11 with stellate sensoria. Mentum with median keel broad and raised anteriorly to a point ( Fig. 13 ); ventral portion of eye reaching subgenal sulcus ( Fig. 9 ); 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 acute, moderately produced and apically narrowly rounded; lateral edge of pronotum sinuate at base; pronotum evenly convex ( Fig. 146 ). Hypomeron without distinct punctures. Prosternal process wide, flat, apically rounded; indistinct marginal grooves opposite coxae not joined apically ( Fig. 147 ). Elytral striae not impressed, present as small discontinuous punctures; punctures separated by 0.5–1.0 diameters; appearing as a fine stria; elytral interstriae flat; densely punctate, punctures moderately impressed; scutellary striae 4–6 punctures long, nearly reaching the elytral suture; scutellum triangular, normal ( Figs. 144, 146 ). Mesoventrite thin antero-posteriorly, shallowly excavate, widely U-shaped, receiving prosternal process; metaventrite subequal in antero-postero length of mesocoxa ( Fig. 147 ). Metathoracic wing fully developed. Legs long, slender, punctate, apical portion of femur reaching beyond elytron; mesofemur with ventral medial patch of setae ( Fig. 152 ); tibiae ventrally curved apically; meso- and metatibia with small ventral apical tooth ( Fig. 51 ). Abdominal depressions on 4th and 5th ventrites present as weakly impressed pits ( Fig. 75 ); intercoxal process of first ventrite apically rounded; ventral surface densely punctate, punctures weakly impressed ( Fig. 147 ).

Female. Identical to male, except tibiae straight and lacking meso- and metatibial tooth.

Biology. Unknown.

Distribution. This species in endemic to Hispaniola and is only known from the type locality at 610–1,220 m (2,000 –4,000 ft) elevation in the northeast foothills of La Hotte in Haiti ( Figs. 261 , 262 ).

Etymology. The species epithet comes from the Latin word dolōsus, meaning sly, as this species is extremely similar to N. darlingtoni .

Nesocyrtosoma purpureum Hopp and Ivie , New Species ( Figs. 52 , 148–152 , 263 , 283 )

Type Material. HOLOTYPE: Male. DOMINICAN REP.: Prov.; Barahona, nr. Filipinas,; Larimar Mine: 20–26-VI-; 1992; R. E. Woodruff and; P. E. Skelley, at night. ( FSCA) . PARATYPES (18 specimens): 5 specimens with same label data as holotype. (4 FSCA, 2 WIBF). DOMINICAN REP: Prov.; Barahona, nr. Filipinas; Larimar Mine: 26-VI-7-; VII-1992: R. E. Woodruff,; P. E. Skelley; beating. (2 FSCA). DOMINICAN REP.: Prov.; Barahona, nr. Filipinas,; Mt. Tutu; 26- VI –7-VII-; 1992; P. E. Skelley; day catch, beating. (1 WIBF). DOMINICAN REP.: Prov.; Barahona, nr. Filipinas,; Larimar Mine: 26-VI-7-; VII-1992: Woodruff and; Skelley, day beating. (2 WIBF). DOMINICAN REP.: Prov.; Barahona, nr. Filipinas; Larimar Mine: 20–26-VI-; VII-1992: R. E. Woodruff,; P. E. Skelley; beating; misc. at night. (1 FSCA, 1 WIBF). DOMINICAN REP.: Prov.; Barahona, nr. Filipinas,; Larimar Mine: 26-VI-7-; VII-1992: Woodruff and; Skelley, night beating. (1 WIBF). DOMINICAN REPUBLIC:; Barahona Prov., El Cachote; 18u 03.2959N, 71u 09.7789W; 970 meters 14 July 2006; S. W. Lingafelter beating. (1 NMNH, 1 WIBF). DOMINICAN REPUBLIC:; Barahona. 5 km SE Polo,; slopes of Loma La Torre ; 18-03N, 71 - 16W. 980 m. / 18 July 1992. Disturbed; forest with coffee.; C. Young, R. Davidson, S. Thompson, J. Rawlins. (2 CMNH) .

Diagnosis. This species can be distinguished by the extremely purple elytra, bullet-shaped body form ( Fig. 148 ), antennomeres 6–10 weakly widened apically, prosternal process broad, apically truncate and broadly rounded, mesoventrite shallowly excavate and broadly U-shaped ( Fig. 151 ), and males with a medial setal patch on the ventral surface of the mesofemora ( Fig. 152 ).

Description (male). 7.0–9.0 mm long, 4.0– 5.5 mm wide. Body elongate, elytra convex, broadest at midpoint, tapered at apex; bullet shaped ( Figs. 148, 149 ). Strongly shining purple; antennae, mouthparts, and tarsi ferrugineous. Head densely punctate, punctures smaller than a single eye facet, lightly impressed; extremely short golden seta emerging from each puncture. Antenna weakly clavate, nearly filiform; antennomeres 6–10 weakly widened apically, forming a loose, elongate club; apical antennomere longitudinally ovate; antennomeres 6–11 with stellate sensoria. Mentum with acute median keel raised anteriorly to a point ( Figs. 10, 12 ); ventral portion of eye reaching subgenal sulcus ( Fig. 9 ); postgena without circular punctures. Dorsal surface of pronotum sparsely punctate; shagreened. Pronotal marginal bead complete laterally, anterior and posterior margin with marginal bead effaced medially; anterior angles of pronotum acute, moderately produced and narrowly rounded apically; lateral edge of pronotum sinuate at base; pronotum evenly convex ( Fig. 150 ). Hypomeron without distinct punctures. Prosternal process broad, apically rounded; distinct marginal grooves opposite coxae joined apically ( Fig. 151 ). Elytral striae not impressed, present as small discontinuous elongate punctures; punctures separated by 0.5–1.0 diameters; appearing as a fine stria; elytral interstriae flat; densely punctate; shagreened; scutellary striae 4–6 punctures long, nearly reaching the elytral suture; scutellum triangular, normal ( Figs. 148, 150 ). Mesoventrite thin anteroposteriorly, shallowly excavate, widely U-shaped, receiving prosternal process; metaventrite subequal in antero-postero length of mesocoxa ( Fig. 151 ). Metathoracic wing fully developed. Legs long, slender, punctate, apical portion of femur reaching beyond elytron; mesofemur with ventral medial patch of setae ( Fig. 152 ); tibiae ventrally apically curved; meso- and metatibia with ventral apical tooth, tooth large, broadly rounded ( Fig. 52 ). Abdominal depressions on 4th and 5th ventrites present as moderately impressed pits ( Fig. 75 ); intercoxal process of first ventrite apically rounded; ventral surface densely punctate, punctures weakly impressed ( Fig. 151 ).

Female. Identical to male, except tibiae straight and meso- and metatibiae without ventral apical tooth.

Biology. This species has been taken beating by day and night.

Distribution. This species is endemic to Hispaniola. It has primarily been taken from the Larimar Mine in Barahona Province of the Dominican Republic. It has also been taken in El Cachote and Loma la Torre in Barahona Province ( Figs. 260 , 263 ).

Etymology. This species is named for its brilliantly shining purple elytra.

Nesocyrtosoma crenulatum Hopp and Ivie , New Species ( Figs. 14, 16 , 53 , 153–156 , 263 , 284 )

Type Material. HOLOTYPE: DOM.REP: Independencia ; ESE Jimaní.La Florida; 18u249N, 71u449W, 20m; moist site, 13APR1993; MAIvie,DSikes,Wlanier. (from WIBF, deposited NMNH) . PARATYPES (17 specimens): 1 WIBF specimen with same label data as holotype. DOM.REP: Independencia ; ESE Jimaní.La Florida; 18u249N, 71u449W, 20m; 14 APR 1993. M.A.Ivie; at night on trees. (7 WIBF). DOMINICAN REPUBLIC:; Independencia. Sierra; de Neiba just south; of crest, 5 km NNW; Angel Feliz, 1,780m./ 18-41N, 71-47W; 13–15 October 1991; J.Rawlins , R. Davidson; C. Young, S.Thompson; Cloud forest / Carnegie Museum; Specimen Number; CMNH-348,926. (1 CMNH) . DOMIN- ICAN REPUBLIC :; La Altagracia Province; El Veron , road to Hoyo Azul ; 18u 33.8059N, 68u 26.5439W; 25–40 meters 4 July 2005; N. E. Woodley. (1 NMNH). DOMINICAN REPUBLIC:; La Altagracia Prov., PN del; Este , Guaraguao- blacklight; 18u 19.5689N, 68u 48.5009W; 0–5 meters 19 July 2004; Steven W. Lingafelter. (1 WIBF). DOM.REP: Prov. Pedernales; Rio Mulito, Pedernales; 22AUG1987, L.F.Armas; under rocks 350 m / humid forest. (2 WIBF). DOM.REP:Prov. Pedernales; 24 km N. Cabo Rojo, 610m; 21 AUG 1988,wet forest; at light and night beating; M.Ivie, Philips and Johnson. (1 WIBF). DOMINICAN REPUBLIC:; Pedernales Prov., PN Jaragua; 3 km S. of Los Tres Charcos; 99 m; 17u 48.0639N, 71u 26.8099W; 16-VI-2005, G. Nearns. (1 FSCA) . R. DOMINICANA,; 5 KM N VILLA ELISA; MAY 10–18, 1985; E . GIESBERT, COLL. (1 FSCA). Paste Terre; Rouge 2,000 ft; X-5/ Haiti; 1934; Darlington. (1 MCZC) .

Other Material Examined. Rep. Dominicana.; Prov. Pedernales,; Las Mercedes.; Bajo piedra; 5-II-02; Col. E. Gutierrez/ Tenebrionidae ; Ident. OHG; Crenalops; quisqueyanus. (4 OHGC).

Diagnosis. This species can be distinguished from all other species by its large size and crenulate lateral edges of the pronotum ( Fig. 155 ).

Description (male). 8.0–11.0 mm long, 4.5–6.5 mm wide. Body elongate, moderately convex ( Figs. 153, 154 ). Purple to black; antennae, mouthparts, and tarsi darkly ferrugineous. Head densely punctate, punctures variable, largest punctures subequal to single eye facet, moderately impressed; extremely short golden seta emerging from each puncture. Antenna weakly clavate, nearly filiform; antennomeres 6–10 weakly widened apically, forming a loose, elongate club; apical antennomere longitudinally ovate; antennomeres 6–11 with stellate sensoria. Mentum with broad median keel raised anteriorly to a point ( Fig. 13 ); ventral portion of eye reaching subgenal sulcus ( Fig. 9 ); postgena with distinct punctures ( Fig. 12 ). Dorsal surface of pronotum densely punctate; punctures separated by 0.5–1.0 diameters. Pronotal marginal bead complete laterally, anterior and posterior margins with marginal bead effaced medially; anterior angles of pronotum acute, moderately produced and apically narrowly rounded; lateral edge of pronotum crenulate, sinuate at base ( Fig. 155 ). Hypomeron without distinct punctures; prosternal process broad, flat, apically rounded; distinct marginal grooves opposite coxae not joined apically ( Fig. 156 ). Elytral striae weakly to moderately impressed, present as small, weakly impressed discontinuous punctures separated by 0.5–1.0 diameters with a weakly to deeply impressed stria through each puncture row; scutellary striae weakly to moderately impressed, 6–10 punctures long; scutellum triangular, normal ( Figs. 153, 155 ). Mesoventrite thin antero-posteriorly, nearly flat medially, weakly raised laterally; small medial pit anterior to mesoventrite; widely U-shaped, receiving prosternal process; metaventrite subequal in antero-postero length of mesocoxa ( Fig. 156 ). Metathoracic wing fully developed. Legs long, slender, punctate, apical portion of femur reaching beyond elytron; tibiae slightly apically curved ventrally; apical tooth on protibia reduced, apical tooth on meso- and metatibia large and obtusely rounded ( Fig. 53 ). Abdominal depressions on 4th and 5th ventrites present as deeply impressed pits ( Fig. 75 ); intercoxal process of first ventrite broadly rounded apically; ventral surface densely weakly punctate; ventrites I–III with lightly impressed longitudinal grooves ( Fig. 156 ).

Female. Identical to male, except all tibiae straight and lacking ventral apical tooth.

Biology. This species has been taken at night on trees in dry tropical forest, in cloud forest, at blacklight, under rocks, and beating at night in moist tropical forest.

Distribution. This species is endemic to Hispaniola. A long series was taken at La Florida and a single specimen was taken in the Sierra de Neiba in Independencia Province. It has also been taken a few times in La Altagracia, Pedernales, and Villa Elisa Provinces ( Figs. 260 , 263 ). Finally, it was taken in Paste Terre Rouge at 610 m (2,000 ft) in Sud-Est, Haiti ( Figs. 261 , 263 ).

Etymology. This species epithet comes from the Latin word crenatus with the diminutive form crenulatus, referring to the crenulate lateral edges of the pronotum.

Figures

Figs. 50–61. Male metatibia of the Purple species-group species. 50) Nesocyrtosoma basilense; 51) N. dolosum; 52) N. purpureum; 53) N. crenulatum; 54) N. otus; 55) N. darlingtoni; 56) N. mutabile; 57) N. larseni; 58) N. parallelum; 59) N. cristalense; 60) N. cuprosum; 61) N. elongatum.

Figs. 144–152. 144–147: Nesocyrtosoma dolosum. 144) Habitus, dorsal; 145) Habitus, lateral; 146) Pronotum; 147) Thoracic sterna. 148–152: Nesocyrtosoma purpureum. 148) Habitus, dorsal; 149) Habitus, lateral; 150) Pronotum; 151) Thoracic sterna; 152) Male mesofemur with longitudinal patch of setae.

Figs. 262–264. Nesocyrtosoma species distribution maps. 262) Distributions of N. bestiola, N. ferruginea, N. merkli, N. altagracia, N. basilense, N. dolosum, N. darlingtoni, N. cristalense, and N. dentatum; 263) Distributions of N. virens, N. purpureum, N. crenulatum, N. otus, and N. elongatum; 264) Distributions of N. tumefactum, N. turquinense, N. scabrosum, N. simplex, N. parallelum, N. fernandoi, N. serratum, N. teresitae, and N. productum.

Figs. 281–292. Illustrations of male genitalia in dorsal and lateral view of the Purple species-group species. 281) Nesocyrtosoma basilense; 282) N. dolosum; 283) N. purpureum; 284) N. crenulatum; 285) N. otus; 286) N. darlingtoni; 287) N. mutabile; 288) N. larseni; 289) N. parallelum; 290) N. cristalense; 291) N. cuprosum; 292) N. elongatum.

Figs. 10–18. 10–13: Ventral portion of head. 10) Nesocyrtosoma guerreroi ocular depression; 11) Nesocyrtosoma bankense ocular depression; 12) Nesocyrtosoma virens distinct postgenal punctures; 13) Nesocyrtosoma otus median keel of mentum broad. 14–18: Antenna. 14) Nesocyrtosoma crenulatum with antennomeres 10 and 11 with stellate sensoria; 15) Nesocyrtosoma guerreroi with antenna clavate, apical six antennomeres enlarged to form club; 16) Nesocyrtosoma crenulatum with antenna moderately clavate, apical six antennomeres enlarged to form club; 17) Nesocyrtosoma inflatum with antenna weakly clavate, nearly filiform, apical six antennomeres enlarged to form club; 18) Strongylium atrum with filiform antenna.

Figs. 5–9. 5–7: Mandible of Nesocyrtosoma hispaniolae. 5) View from back; 6) View from side; 7) View from front. 8–9: Ventral portion of eye. 8) Nesocyrtosoma lacrima with ventral portion of eye not reaching the subgenal sulcus; 9) Nesocyrtosoma darlingtoni with ventral portion of eye reaching the subgenal sulcus.

Figs. 74–76. Abdominal characters. 74) Nesocyrtosoma inflatum with abdominal depressions on 4th and 5th ventrites reduced to indistinct slits (AbS 5 abdominal slits); 75) Nesocyrtosoma otus with abdominal depressions on 4th and 5th ventrites present as impressed pits (AbP 5 abdominal pits); 76) Nesocyrtosoma skelleyi with first visible abdominal ventrite with a nipple at the apex.

Fig. 261. Map of the departments of Haiti.

Fig. 260. Map of the provinces of the Dominican Republic.

Figs. 153–160. 153–156: Nesocyrtosoma crenulatum. 153) Habitus, dorsal; 154) Habitus, lateral; 155) Pronotum; 156) Thoracic sterna. 157–160: Nesocyrtosoma otus. 157) Habitus, dorsal; 158) Habitus, lateral; 159 Pronotum; 160) Thoracic sterna.