Cleidaria, Nascimento & Santos-Silva, 2020

Nascimento, Francisco Eriberto de Lima & Santos-Silva, Antonio, 2020, Two new genera of Desmiphorini (Coleoptera, Cerambycidae, Lamiinae) with description of a species with non-retractile parameres, Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) 60 (20), pp. 1-10 : 2

Cleidaria gen. nov.

( Figs. 1-5 )

Type species: Cleidaria cleidae sp. nov., here designated.

Description

Male: Small size (length: 5.8 mm), cylindrical. Head wide, not retractile; frons distinctly transverse; palpi slender, unequal, with apical segment pointed; antennal tubercles widely separated, slightly elevated; eyes emarginate, coarsely faceted; distance between upper eye lobes slight larger than width of one lobe; lower eye lobes distinctly longer than gena; antennae slender, with long, erect,moderately abundant and long setae ventrally,also present dorsally in basal segments, but sparser; scape elongate, moderately widened toward apex; antennomere III slightly longer than IV. Prothorax slightly wider than long; sides with distinct central tubercle. Pronotum not tuberculate. Procoxal cavities closed behind. Central area of prosternal process about 0.25 times the diameter of procoxal cavity. Elytra parallel-sided in basal ¾, gradually narrowed in distal quarter; elytra apices unarmed, individually rounded; not carinate; with long, erect setae throughout. Membranous wings present. Femora moderately clavate; tarsi short; tarsal claws ( Fig. 4 ) abruptly narrowed from basal half at inner side, forming a round- ed tooth. Abdominal ventrite I longest, II-IV shorter, subequal in length,V slightly longer than IV.

Female: Unknown.

Etymology: Latin, suffix “aria” – belonging to, added to the first name of Cleide Costa. Feminine gender.

Remarks: Lacordaire (1869) was the first to use the shape of tarsal claws to separate supraspecific groups in Lamiinae and its classification is one of the most commonly followed in the family. The shape of the tarsal claws of the new species is divaricated, as the other species of the tribe. However, due to the particular shape of tarsal claws and the importance of this character in family classification, we prefer to propose a new genus to allocate the new species.

Cleidaria gen. nov. differs from all other genera of American Desmiphorini by the tarsal claws ( Fig. 4 ) distinctly and abruptly narrowed from basal half forming a rounded tooth (In other genera, the claws are gradually acuminate towards apex). Accordingly, the new species cannot be confused with any other known species of Desmiphorini or even American Lamiinae . The holotype of the type species, the only known specimen, is damaged. Thus, it is not possible to provide information on the antennal length, and appearance of the last antennomeres. However, the antennae are expected to be slightly longer than the body, and the distal antennomeres are likely filiform and unmodified similar to most species in the tribe. The genus with the most similar appearance is Eupogonius LeConte, 1852 , especially by the shapes of prothorax and elytra, and proportions between them. However, the shape of the tarsal claws does not allow inclusion of the new species.

Figures

Figures 1-5. Cleidaria cleidaegen.nov.et sp.nov.,holotype male.(1) Dorsal habitus;(2) Ventralhabitus;(3) Lateral habitus;(4) Tarsal claws;(5) Head,frontal.