Eurhoptus rileyi Anderson & Caterino

Anderson, Robert S. & Caterino, Michael S., 2018, A revision of the genus Eurhoptus LeConte, 1876 (Curculionidae, Cryptorhynchinae) of America north of Mexico, ZooKeys 787, pp. 37-80 : 66

Eurhoptus rileyi Anderson & Caterino sp. n. Figures 5, 10

Description.

Body length (exclusive of head and rostrum) 3.2 mm, cuticle almost fully covered with broad, flat scales and scattered short, broad recurved, seta-like scales. Pronotum with lateral margins rounded, margins strongly constricted at about apical one-third such that apical one-third is distinctly tubulate, greatest width at about basal one-third, medially sulcate, median line glabrous, impunctate. Elytra strongly rounded dorsally and laterally, striae distinct, of small punctures; all elytral intervals evenly elevated, slightly rounded, each with single row of broad recurved seta-like scales. Metaventrite medially slightly impressed behind mesoventral cup. Abdomen with ventrite 1 with large median deep glabrous shining pit, area around pit with dense, fine golden inwardly directed scales encircling depression and entering pit along anteriorly along midline such that pit appears somewhat divided. Legs with femora and tibiae fringed with dense erect scales along outer and inner margins, hind tibiae distinctly wider at about midlength. Single specimen likely female, not dissected.

Distribution

(Figure 5). This species is known only from a single specimen collected in southern Texas. No records of the species from Mexico are known.

Etymology.

We name this species after Edward G. Riley (retired), former collections manager at the Texas A & M University Insect Collection, College Station, Texas. An invariable word in genitive.

Specimens examined.

Holotype female (TAMU), labelled "USA: TEX: Hidalgo Co. / Bentsen R.G.V.S.P. (site 1) / 26.17830°N, 98.38577°W / IX.6-19.2008, FIT-ground / J. King & E. Riley - 0104 / cedar elm forest", not dissected.