Stenomorpha roosevelti Smith, Miller

Smith, Aaron D., Miller, Kelly B. & Wheeler, Quentin D., 2011, A new species of Stenomorpha Solier (Coleoptera: Tenebrionidae: Pimeliinae: Asidini) from Cuatrociénegas, Mexico with a key to the furcata species group, Zootaxa 2909, pp. 27-37 : 30

Stenomorpha roosevelti Smith, Miller , and Wheeler, NEW SPECIES

( Figs. 4 , 8 , 11 , 13–15 )

Type material. HOLOTYPE (sex undetermined, probably male) labeled: a) “ Mexico: Coahuila, Cuatro- / Cienegas Prot. Area / 23. VII. 2010 / 26.90886°N / 102.1185327°W / K. Miller, K. Wetherill et al”; b) “Site C4 / ~9.7 km SW Cuatrocienegas / bajada slope, travertine slope / black light and gen. night / collecting”; c) on red paper, “ HOLOTYPE / Stenomorpha / roosevelti / Smith, Miller & Wheeler, 2011”. ( UNMC)

Description (Holotype). Length: 12.2mm, EW: 6.4mm, PW: 5.2. Integument black, reflective; densely clothed in simple recurved blackish-brown setae interspersed with longer erect setae dorsally; greatest elytral width slightly wider than pronotum, 2.5X longer. Head: Densely punctate, both moderate and fine punctures present, moderately sized punctures each with a simple blackish-brown seta; frontoclypeal suture neither impressed or indicated, epistomal suture faintly visible, not indented at margin; medial depression on frons absent; labral margin broadly emarginate; clypeal membrane concealed. Apical segment of maxillary palps expanded, isotriangular. Mentum transverse, sub-trapezoidal, nearly filling buccal cavity. Submentum width approximately four-fifths that of buccal cavity, laterally exposing a quadrate space before postgena. Postgenal processes rounded, extending to nearly midline of mentum. Antenna densely clothed in dark brown erect simple setae; antennal segment 10 subquadrate, with tomentose sensilla separated, curved around apex. Eye weakly reniform. Prothorax: Pronotum gibbose; pronotal lateral margins arcuate, widest at middle; marginal costa strongly reflexed, crenate; anterior apices produced, acute; posterior apices obtuse; posterior margin weakly bisinuate, medially weakly depressed. Pronotal disc moderately punctate, each puncture of moderate size and nearly filled with a long recurved or erect simple seta. Prosternal process longitudinally impressed, declivous behind procoxae. Prosternum moderately punctate, punctures fine, with decumbent brown simple setae. Pterothorax: Scutellum exposed, gradually posteriorly raised above scutum; mesonotum with two deep rounded paramedial depressions. Elytra elongate oval, widest posterior to middle, strongly declivous near apex. Elytral humera weakly constricted before base, apices acute, not reflexed. Marginal costa tuberculate, weakly raised, bifurcated in basal third; inner branch weakly indicated, not reaching outer branch at base or apical elytron declivity. Discal costa of elytron tuberculate, weakly raised from behind humera to apical third of elytron, parallel to suture. Elytral disc moderately punctate, punctures large; densely clothed in long recurved blackish-brown setae interspersed with longer erect setae along costae and margins. Legs: Femora and tibia densely clothed with decumbent erect dark brown simple setae, pro-, meso-tibia also with sparse socketed black spiniform setae. Femora transversely rugose; tibia weakly rugose; tarsi with plantar surface densely pubescent throughout, setae simple, golden-orange, becoming sparser, darker on distal tarsomere; protibia with outer apical margin forming a small indistinct spine with a ring of socketed spiniform setae running entire margin; inner apical margin with two subequal spurs; combined protarsal segments approximately one-half length of protibia. Abdomen: Moderately punctate with decumbent simple setae.

Diagnosis. Stenomorpha roosevelti is easily separated from other members of the furcata group by its dorsal vestiture (composed of both recurved and erect simple blackish-brown setae), its weakly indicated elytral carinae, and by the dense golden-orange pubescence on the ventral portion of the tarsi.

Etymology. This species is named in honor of the 26th President of the United States, Theodore Roosevelt, for his contributions to conservation.

Remarks. Known only from the type specimen, collected in the Cuatrociénegas Protected Area in Coahuila, Mexico (see discussion for details).

Figures

FIGURE 11. Distribution of furcata group species. Stars () = Stenomorpha granicollis, circle () = Stenomorpha roosevelti, squares () = Stenomorpha wickhami, and triangles () = Stenomorpha furcata ..

FIGURES 1 – 4. Dorsal habitus of the Stenomorpha furcata species-group: 1) Stenomorpha furcata (male); 2) Stenomorpha granicollis (male); 3) Stenomorpha wickhami (male); 4) Stenomorpha roosevelti (holotype).

FIGURES 5 – 8. Lateral view of the Stenomorpha furcata species-group: 5) Stenomorpha furcata (male); 6) Stenomorpha granicollis (male); 7) Stenomorpha wickhami (male); 8) Stenomorpha roosevelti (holotype).

FIGURES 13 – 15. Stenomorpha roosevelti: 13) Recurved setae on elytron; 14) Mentum and apical segment of maxillary palp; 15) Protarsi, venter.