Quadrophenia curoei Rifkind, 2020

Rifkind, Jacques, 2020, New Species of Cleridae (Coleoptera) from Mexico and Central America, with Notes on Others, The Coleopterists Bulletin 74 (4), pp. 875-893 : 892

Quadrophenia curoei Rifkind , new species

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( Figs. 27–28 )

Specimen Examined. Holotype male (?): Mexico, Oaxaca, 4 km S of Lachao , N16°12.1 ′, W97°08 ′, 24-vi-2006, 1710 m, D. Curoe, coll. ( CSCA).

Description ( Holotype). Length: 9 mm. Form: Dorsoventrally compressed; elytra moderately expanded posteriorly. Color: Brownish black; pronotum rosaceous with a broad longitudinal black stripe at middle that extends from anterior margin to posterior margin, stripe narrower on pronotal arch, broader on disc; mouthparts testaceous, except terminal palpomeres infuscate. Head: Measured across eyes not as broad as pronotum at its widest; eye protuberant; front deeply bi-impressed; cranium narrow; surface shining, densely but shallowly rugulose-punctate; vestiture moderately dense but inconspicuous, composed mostly of suberect, tawny setae intermixed with fewer, longer suberect and erect setae; antenna elongate (attaining elytral humerus when laid alongside) terminal antennomere with internal and external/distal emarginations exaggerated, apex subacuminate ( Fig. 28 ). Pronotum: Broader than long (5:4); broadest at posterior 1/3, sides convex posterior to transverse impression; transverse impression distinct, broadly U-shaped at middle; disc broadly subflattened; surface shining, pronotal arch with integument densely, irregularly punctate; pronotal disc coarsely, deeply, transversely wrinkled; vestiture moderately dense but inconspicuous, mostly pale laterally, mostly dark dorsally, composed for the most part of suberect, anteriorly directed setae of moderate length. Elytra: Together longer than broad (9:5), somewhat expanded posteriorly (broadest at posterior 1/3), flattened above; epipleuron broad, entire, deeply crimped internally, and contiguous with sutural bead; surface dull; integument densely, uniformly asperate-punctate; vestiture dense but inconspicuous, composed of short, suberect dark setae with an admixture of longer, erect, dark setae. Abdomen: Surface shining, obscurely wrinkled, sparsely setose; ventrite 5 with sides oblique, posterior angles rounded, hind margin shallowly, arcuately emarginate at middle; ventrite 6 small, scutiform, posterior margin rounded; tergite 6 scutiform, broader than ventrite 6, posterior margin rounded.

Variation. Known only from the holotype.

Etymology. The specific name honors coleopterist Daniel Curoe, collector of the type, which he graciously made available to me.

Distribution. Known from the Sierra Sur, Oaxaca, Mexico.

Diagnosis. The new species is placed in the genus Quadrophenia Rifkind on the basis of its dorsoventrally compressed form, broad pronotum, posteriorly expanded elytra, absence of elytral subbasal swellings, and the shape of antennomere 11, which is emarginate both internally and on the distal/external side, and has the apex subacuminate ( Rifkind 2017b). It can be separated from congeners by virtue of its dull, uniformly and densely asperate/ punctate elytra; all other species have the elytral integument shining and at most moderately densely punctate or shallowly rugose. The original generic diagnosis is hereby modified to include species with dull, asperate elytra.

Figures

Figs. 26–28. New Cleridae species and subspecies, holotypes. 26) Enoclerus madrensis turnbowi, new subspecies, dorsal habitus. Quadrophenia curoei, new species: 27) Dorsal habitus; 28) Detail of antenna.