Epimetopus lanceolatus, Perkins, 2012

Perkins, Philip D., 2012, 3531, Zootaxa 3531, pp. 1-95 : 69

Epimetopus lanceolatus , new species

Figs. Figs. 107 (habitus), 109 (aedeagus), 128 (map)

Type Material. Holotype (male): Brazil: Mato Grosso, Caceres , MT., 16° 4' S, 57° 41' W, 1–30 xii 1955, M. Alvarenga ( MSP) . Paratype: Brazil: Mato Grosso, Caceres , MT., 16° 4' S, 57° 41' W, 2–4 xii 1955, M. Alvarenga (1 CAS) .

Differential Diagnosis. Differentiated from E. lanceolatulus ( Figs. 107, 108) by the much larger size (ca. 3.63 vs. 2.61 mm), the longer and more sharply arcuate pronotal hood, the different spearhead-like shape formed by the pronotal carinae, the presence of a pronotal ridge leading posteriorly from the posterior margin of the pronotal hood, and more robust elytra. In addition, the pronotal hood carinae are anteriorly confluent in E. lanceolatus , and separated in E. lanceolatulus . The aedeagus is notably broader than that of E. lanceolatulus ( Figs. 109, 110), but despite the great difference in size of adults of the two species the aedeagi are of approximately the same length. Also, the parameres are shaped differently in the two species.

Description. Size: holotype (length/width, mm): body (length from anterior margin of pronotum to elytral apices) 3.63/2.03; head (width) 0.94; pronotum 1.34/1.44; elytra 2.44/2.03. Habitus as illustrated ( Fig. 107). Head dark brown to piceous, maxillary palpi light brown, dorsum dark brown except light brown narrow transverse fascia on elytra, venter and coxae dark brown to piceous, remainder of legs brown, abdominal ventrites brown, margin slightly lighter. Pronotum with primary lateral lobes large, angulate, secondary lobes small; hood anterior margin rather sharply arcuate; hood carinae anteriorly converging, confluent at anterior tip, together forming very sharp angle; pronotal ridges strong. Elytra with carinae strong, except third carina absent in short area subbasally; non-carinate intervals each with an irregular row of small granules. Metaventral depression moderately deep and wide, ca. eight large granules along base.

Etymology. Named in reference to the shape of the aedeagus.

Distribution. Currently known only from the type locality ( Fig. 128).