Mizotrechus chontalesensis, Erwin, 2011

Erwin, Terry L., 2011, Rainforest understory beetles of the Neotropics, Mizotrechus Bates 1872, a generic synopsis with descriptions of new species from Central America and northern South America (Coleoptera, Carabidae, Perigonini), ZooKeys 145, pp. 79-128 : 89-90

publication ID	https://dx.doi.org/10.3897/zookeys.145.2274
publication LSID	lsid:zoobank.org:pub:94F032BD-93F2-4652-B7A3-E914EAB8BB92
persistent identifier	https://treatment.plazi.org/id/638541F2-014B-45D7-8A7E-C0D80817DEA5
taxon LSID	lsid:zoobank.org:act:638541F2-014B-45D7-8A7E-C0D80817DEA5
treatment provided by	ZooKeys by Pensoft
scientific name	Mizotrechus chontalesensis
status	sp. n.

Treatment

Chontales trough beetle Mizotrechus chontalesensis View in CoL sp. n. Figs 5 View Plate 2 21 View Plate 6 39 View Figure 39

Holotype.

NICARAGUA, Chontales,? nr. Santo Domingo, 514 m, 12.262°N, 85.083°W, (EM Janson)(BMNH: ADP127181, female).

Derivation of specific epithet

. The epithet “chontalesensis” is a Latinized noun in apposition, based on the name of the area in which these beetles are found.

Proposed English vernacular name.

Chontales trough beetle.

Diagnosis.

With the attributes of the genus as described above and moderately large sized for the genus as it is presently understood; adults have castaneous integument, except anterior parts of mandible, baso-lateral corner of labrum, and clypeal suture piceous. Frons and occiput quite smooth, without regular rugae; micropunctation widespread and hardly evident. Pronotum longer than wide with lateral margins narrowly explanate and basally shallowly emarginate with sharp, not denticulate, hind angles; base smooth, without regular microrugosity. Elytra moderately broad and short, apices not prolonged, wider than the width of pronotum across anterior third, and each with 8 well-impressed irregularly punctulate interneurs, intervals not convex; margins behind humeri rough, intervals between microsetae blunt. Foreleg femur with slightly produced ridge on postero-ventral margin.

Description.

( Figs 5 View Plate 2 , 21 View Plate 6 ). Size: See Appendix 1. Moderately sized for genus, ABL = 7.1 mm, SBL = 5.87 mm, TW = 2.29 mm. Color: see diagnosis, above. Luster: Head, pronotum, elytra, and legs shiny. Head: Labrum quadrate, apico-medially barely emarginate. Eye small and barely convex. Gena straight. Frons, occiput, and gena glabrous. Prothorax: Moderately narrow, narrowed slightly toward base, margin narrowly explanate, slightly wider before hind angle; surface punctulate, punctures widespread, very fine, glabrous. Pterothorax: Elytron barely convex, intervals nearly flat, all interneurs with well-impressed irregularly-spaced punctures, apex not prolonged, slightly rounded at extreme sutural apex. Legs: Normal in female; foreleg femur ( Fig. 21 View Plate 6 ) with slightly produced, short, arcuate ridge on postero-ventral margin at basal forth, not dentate; posterior trochanter tapered to rounded point in female, length half that of femur. Abdomen: Abdominal sterna moderately setiferous, densely so medially on II and III; sternum VII barely medially emarginate in female. Male genitalia: Unknown. Female genitalia: Not investigated; however, it is likely similar to that illustrated on Plate 11 View Plate 11 .

Dispersal potential.

These beetles are macropterous and capable of flight. They are moderately swift and agile runners.

Way of life.

Unknown.

Other specimens examined.

None.

Geographic distribution.

( Fig. 39 View Figure 39 ). This species is currently known only from the type locality in the dry tropical forested lowlands of Nicaragua.