Psephenops, Grouvelle, 1898

Novelo-Gutiérrez, Rodolfo, 2017, Two new species of Psephenops Grouvelle (Coleoptera: Byrrhoidea: Psephenidae) from Panama, Zootaxa 4323 (1), pp. 109-118 : 117-118

publication ID

https://doi.org/ 10.11646/zootaxa.4323.1.8

publication LSID

lsid:zoobank.org:pub:081A06F5-76A4-438A-85C8-959E1E183C73

DOI

https://doi.org/10.5281/zenodo.6025172

persistent identifier

https://treatment.plazi.org/id/BE3A6F5B-814C-EF4D-16AE-0D21FA610893

treatment provided by

Plazi

scientific name

Psephenops
status

 

Key to adult males of Psephenops View in CoL from Mesoamerica

(Modified from Arce- Pérez & Novelo-Gutiérrez 2013)

1 Pronotum with 3 small tuberculiform prominences; elytra with several longitudinal ridges on disc............... grouvellei

- Pronotum without tuberculiform prominences, elytra without longitudinal ridges on disc............................. 2

2 Protibiae with a denticle................................................................................ 3

- Protibiae without a denticle........................................................................ prestone

3 Tarsal lobes enlarged ( Fig. 17 View FIGURES 17 – 25 )........................................................................... 4

- Tarsal lobes short ( Fig. 18 View FIGURES 17 – 25 )............................................................................. 5

4 Basal half of parameres, in dorsal view, separated by a deep cleft ( Fig. 5 View FIGURES 5 – 8 )......................................... 7

- Basal half of parameres, in dorsal view, fused ( Fig. 13 View FIGURES 13 – 16 )........................................................ 9

5 Parameres truncated ( Fig. 19 View FIGURES 17 – 25 ); 4th maxillary palpomere at least twice as long as preceding palpomeres.............. s mithi

- Parameres not truncated; 4th maxillary palpomere not as above.................................................. 6

6 Parameres strongly convergent on apical third, medial margin of each paramere separate each other by a narrow, drop-like cleft ( Fig. 20 View FIGURES 17 – 25 )......................................................................................... lupita

- Parameres more or less parallel on apical third, medial margin of each paramere separate each other by a wide, U-shaped cleft ( Fig. 21 View FIGURES 17 – 25 )....................................................................................... shepardi

7 Apices of parameres, in dorsal view, spine-like, widely divergent ( Fig. 22 View FIGURES 17 – 25 ).............................. spiniparameri

- Apices of parameres, in dorsal view, convergent, not spine-like ( Figs 20, 21 View FIGURES 17 – 25 )...................................... 8

8 Prosternal process flat, with apex lanceolate. Penis with a small, lateral tooth ( Fig. 23 View FIGURES 17 – 25 )....................... mexicanus

- Prosternal process subcylindrical, with apex bifid. Penis lacking lateral projections ( Fig. 5 View FIGURES 5 – 8 )...................... bifidus

9 Small individuals, length less than 2.4 mm, antennae moniliform-serrate, parameres truncate, with apex straight ( Fig. 24 View FIGURES 17 – 25 ).............................................................................................. panamaensis

- Large individuals, length greater than 2.5 mm, antennae not serrate, parameres not truncate.......................... 10

10 Antennae long, filiform; fore- and middle legs with segments 1 and 2 lobulate, hind legs only with segment 1 lobulate (Haiti)............................................................................................. haitianus

- Antennae short, moniliform; all legs with segments 1 and 2 lobulate............................................ 11

11 Elytra slightly striate. Parameres, in dorsal view abruptly widened on apical fifth, with apex rounded; penis digitiform and y slightly produced apically ( Fig. 25 View FIGURES 17 – 25 ).............................................................. maculicollis

- Elytra smooth. Parameres, in dorsal view, uniformly widened, apex subtriangular; penis digitiform, not produced apically, with a basal, lateral, subtriangular projection to each side ( Fig. 13 View FIGURES 13 – 16 ).......................................... triangularis

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Psephenidae

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