Piesocorynini, Valentine, 1960

Trýzna, Miloš, Carrasco, Juan Carlos & Blažej, Lukáš, 2022, Review of the Neotropical genera Barra Jordan and Brevibarra Jordan, with description of a new species of Barra from Nicaragua, notes on the tribe Piesocorynini Valentine, and new records of Brevibarra from Brazil and Ecuador (Coleoptera: Anthribidae), Zootaxa 5213 (3), pp. 243-268 : 245

publication ID

https://doi.org/ 10.11646/zootaxa.5213.3.3

publication LSID

lsid:zoobank.org:pub:48370776-1275-4DEB-BFC9-0E9312C8B5DB

DOI

https://doi.org/10.5281/zenodo.7362418

persistent identifier

https://treatment.plazi.org/id/03D18782-FFCD-FFD4-FF6E-FDFB91BBF977

treatment provided by

Plazi

scientific name

Piesocorynini
status

 

Neotropical genera of the tribe Piesocorynini can be identified using the keys below

(see also Jordan 1906: 301, Valentine 1998: 271)

1 Outer edge of mandibles straight along entire length, only at the very apex do they turn sharply inwards......... Group 1

- Outer edge of mandibles more or less bent along their entire length, or along a substantial part................. Group 2

Group 1: Barridia (not depicted), Brachycorynus ( Fig. 2 View FIGURES 1–5 ), Opisolia ( Fig. 7 View FIGURES 6–10 ), Piezobarra ( Fig. 12 View FIGURES 11–15 ), Phaenotheriopsis ( Fig. 17 View FIGURES 16–20 )

Group 2: Barra ( Figs 40 View FIGURES 39–43 , 52 View FIGURES 51–55 , 57 View FIGURES 56–60 ), Brevibarra ( Fig. 69 View FIGURES 68–72 ), Lagopezus ( Fig. 22 View FIGURES 21–25 ), Piesocorynus ( Fig. 27 View FIGURES 26–31 ), Piezonemus ( Fig. 33 View FIGURES 32–38 )

Key for genera of Group 2

1 Pygidium of male distinctly longer than wide, convex ( Fig. 34 View FIGURES 32–38 ), as long as wide in female; pygidium of female with promontory before apical edge, this projection divided basally. Mesotibia of male with distinct spur at apex ( Fig. 37 View FIGURES 32–38 ). Tarsomere I of mesotarsus dilated at apex on inner side ( Fig. 37 View FIGURES 32–38 ). Eyes very large, occupying a considerable part of head, elongate, oblique, distance between eyes as long as half of length of eye ( Fig. 33 View FIGURES 32–38 ). Rostrum very short, ratio of rostrum length to maximum width 0.3–0.4 ( Fig. 33 View FIGURES 32–38 )............................................................................ Piezonemus View in CoL

- Pygidium wider than long in both sexes, flat, without any promontory in female. Mesotibia of male without distinct spur at apex (except Piesocorynus lateralis View in CoL ). Tarsomere I of mesotarsus not dilated at apex. Eyes smaller, rather oval, not distinctly oblique, distance between eyes distinctly longer than half of length of eye. Rostrum longer, ratio of rostrum length to maximum width greater than or equal to 0.5............................................................................. 2

2 Tibia and tarsi of all legs with distinct long and erect setae ( Figs 21, 25 View FIGURES 21–25 )................................. Lagopezus View in CoL

- Tibia and tarsi of all legs without distinct long and erect setae.................................................. 3

3 Antennae shorter, reaching no further than posterior margin of pronotum in both sexes. Antennomere III short, approximately the same length as II, or maximally 1.2 times as long as antennomere II ( Fig. 70 View FIGURES 68–72 ). Antennal scrobes nearly extending to eyes. Elytral base unequivocally straight in strictly dorsal view, shoulders more rectangular ( Figs 62 View FIGURES 61–62 , 68 View FIGURES 68–72 ). Eyes rounded, not emarginate or truncate anteriad ( Fig. 72 View FIGURES 68–72 )................................................................. Brevibarra View in CoL

- Antennae longer, reaching posterior margin of pronotum in both sexes. Antennomere III longer, the same length or longer than I and II together. Antennal scrobes rather distant from eyes. Elytral base at least slightly bisinuate on strictly dorsal view, shoulders rounded. Eyes oval, weakly emarginate or truncate anteriad............................................... 4

4 Sides of pronotum convex ( Fig. 29 View FIGURES 26–31 ). Dorsal transverse carina of pronotum either completely basal ( Fig. 29 View FIGURES 26–31 ) or antebasal, in this case approaching base of pronotum at lateral angles (= distinctly curved anteriad) (the same as in Lagopezus View in CoL , see Fig. 24 View FIGURES 21–25 )............................................................................................ Piesocorynus View in CoL

- Sides of pronotum straight and conical, not convex laterally ( Figs 42 View FIGURES 39–43 , 54 View FIGURES 51–55 , 59 View FIGURES 56–60 ). Dorsal transverse carina of pronotum sub-basal to basal ( Fig. 42 View FIGURES 39–43 ) or antebasal, in this case parallel with posterior margin of pronotum ( Figs 54 View FIGURES 51–55 , 59 View FIGURES 56–60 )................ Barra View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Anthribidae

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