Plochionocerus puncticeps ( Sharp, 1885 )

Asiain, Julieta, Márquez, Juan & Morrone, Juan J., 2007, Phylogenetic systematics of the genera Plochionocerus Dejean and Agrodes Nordmann (Coleoptera: Staphylinidae: Xantholinini), Zootaxa 1584, pp. 1-53 : 26-27

publication ID

https://doi.org/ 10.5281/zenodo.178410

DOI

https://doi.org/10.5281/zenodo.6246789

persistent identifier

https://treatment.plazi.org/id/965DBB53-FFD2-5A6E-2399-FEB676B354BC

treatment provided by

Plazi

scientific name

Plochionocerus puncticeps ( Sharp, 1885 )
status

 

Plochionocerus puncticeps ( Sharp, 1885) View in CoL

Sterculia puncticeps Sharp, 1885: 470 ; Herman, 2001: 3746 ( Plochionocerus View in CoL ). Araeocnemus lauta Casey, 1906: 360 ; Bernhauer & Schubert, 1914: 315 ( Sterculia View in CoL ); Herman, 2001: 3745 ( Plochionocerus View in CoL ), syn. nov.

Type material (2 specimens). Holotype of Sterculia puncticeps , male: “ Sterculia puncticeps , Type D.S., Costa Rica, Van Patten (specimen on card) / Type / Costa Rica, Van Patten / B. C. A. Col. I. 2. Sterculia puncticeps, Sharp / Sharp Coll. 1905–313 / Holotype ” ( BMNH). Holotype of Araeocnemus lauta , male: “Casey, bequest 1925 / Panama / Type USNM 48182 / Araecnonemis lauta Cay. Washington” ( USNM).

Additional material (57 specimens). COSTA RICA: Puntarenas, Monte Verde, Chomogo Trail, 1690 m, 23.V.1898, J. Ashe, R. Brooks & R. Leschen ex., pitfall trap ( SEMC, 2ɗ, Ψ); Puntarenas Prov., Monteverde Biol. Sta., 1540 m, 10°19.672’N, 84°49.141’W, 10–17.VI.2001, S. & J. Peck, ex FIT, cloud forest ( SEMC, ɗ); Puntarenas, Monte Verde, IV.1989 ( SEMC, ɗ); idem, except: 1610 m, 26.VI.1990, S. E. Roberts, ex. flight intercept trap ( SEMC, ɗ); idem, except: 1520 m, 21.V.1989, J. Ashe, R. Brooks & R. Leschen ( SEMC, ɗ); Puntarenas Prov., Las Alturas Biol. Sta., 1660 m, 08°56.17’N, 82°50.01’W, 2.VI.2004, J. S. Ashe, Z. Falin & I. Hinojosa, ex: fungus covered logs ( SEMC, Ψ); idem, except: ex: flight intercept trap ( SEMC, Ψ); San José Prov., Santo Domingo, Hotel Robledales, 1100 m, 14.XI.2001, R. Brooks, ex. misc. collections ( SEMC, ɗ); San José Prov., 3 km S San Antonio de Escazú, 1700 m, 9.VI.1988, W. Wcislo ( SEMC, ɗ); San José, San Antonio de Escazu, 1300 m, 9°39’16”N, 84°9’16”W, 1.VII–30.VIII. 1998, W. Eberthard & P. Hanson ( SEMC, Ψ); San José, Zurquí de Moravia, 1600 m, 1–30.V.1995, P. Hanson, ex: malaise trap ( SEMC, Ψ); Puntarenas, Wilson Botanical Garden, 14.VIII.1992, D. Brzoska ( SEMC, ɗ); Puntarenas, Las Cruces, Wilson Bot. Res., 25.V.1989, D. Brzoska ( SEMC, ɗ); Cartago Prov., Refugio Nac. De Fauna Silvestre Tapantí, 1 km E Station, 1300 m, 9°44.974’N, 83°46.902’W, 31.X.2001, R. Brooks, ex. under fermenting bark ( SEMC, ɗ); Alajuela, Peñas Blancas, 800–870 m, 19.V.1989, J. Ashe, R. Brooks & R. Leschen ( SEMC, Ψ); Prov. Puntarenas, Est. Biol. Las Alturas, 1500 m, Coto Brus, LS 322500, 591300, X.1991, M. A. Zumbado ( INBC, 3ɗɗ); idem, except: XI.1991, M. Ramírez ( INBC, ɗ, Ψ); idem, except: I.1992 ( INBC, ɗ, 2Ψ); Prov. Heredia, Transecto Las Alturas, Cerro Echandi, Z. P. Las Tablas, Coto Brus, LS 328000, 592500, 2000–2500 m, 15– 17.X.1991, M. A. Zumbado ( INBC, Ψ); Prov. San José, Est. Zurqui, P. N. Braulio Carrillo, 500 m antes del Tunel, LN 226800, 535200, 1600 m, V.1991, G. Maass ( INBC, 3ɗɗ); idem, except: IV.1991 ( INBC, ɗ); Prov. Puntarenas, Est. La Casona, Res. Biol. Monteverde, LN 253250, 449700, 1520 m, IV.1993, N. Obando ( INBC, ɗ); idem, except: XII.1992 ( INBC, Ψ); Prov. Puntarenas, Coto Brus, Est. Pittier, Send Cerro Pittier, LS 330030 578645, 1670 m, 9.IX.1999, R. González, red de golpe ( INBC, ɗ); idem, except: 1680 m, 4– 16.VIII.2000, Intersección ( INBC, ɗ); Prov. Puntarenas, San Luis, R. B. Monteverde, LN 250850, 449250, 1040 m, X.1992, Z. Fuentes ( INBC, 1?, ɗ); idem, except: Buen Amigo, 1000–1350 m, VIII.1994, Intersección ( INBC, ɗ); Prov. San José, Est. Las Nubes de Santa Elena, LS 372500 507700, 1400 m, 7.IX.1995, E. Alfaro ( INBC, ɗ); Prov. San José, Send. Rio #2, 1 km al NE de la Estación Sta. Elena, LS 372000 508800, 1300 m, 9–12.I.1996, A. M. Maroto ( INBC, ɗ); Prov. Puntarenas, Cerro Frantzius, LS 334150 574450, 2134 m, 7.VIII.—7.IX.1997, R.Villalobos ( INBC, ɗ); Puntarenas, Cerro Quemado, LS 335600, 575100, 2100 m, 3–6.VI.1996, R. Villalobos ( INBC, Ψ); Puntarenas, Est. Pittier, Pila-Acla, LN 330900, 1670– 2050 m, 5– 18.I.1995, Z. Fuentes ( INBC, ɗ); Estrella de Cartago ( IRSNB, 3ɗɗ); idem, except: Underwood ( IRSNB, ɗ); Irazu ( IRSNB, ɗ); El Gallita (Barba), 1600 m, VI.1942 ( FMNH, ɗ); Volcan Irazu, 1500–2000 m, Westing Vulkan Irazu, 1500–2000 m ( FMNH, ɗ); San J. de Coronado, 30.VI.1926, T. Assmann (CC-UAEH, ɗ); San Isidro Coronado, V.1931. (T. Assmann) ( FMNH, ɗ); San Isidro Coronado, 22.I.1933 ( FMNH, 1?); Pittier ( FMNH, Ψ); Cartago ( BMNH, Ψ); Coronado, 1400–1500 m, T. Assmann, F. Nevermann, 4.IX.1932, “in kaffepo Flansung Auf Erdboden” ( BMNH, ɗ); Puntarenas, Las Alturas Field Station, 20 km N San Vito de Hava, 1500 m, 21–24.VI.1992, Zinder, malaise trap ( AMNH, ɗ); Pacayas ( AMNH, ɗ). PANAMA: Volc. Chiriqui, 5000 ft, VII.1930 ( FMNH, 1?); Chiriqui ( FMNH, 1?).

Diagnosis. Total length 18.3–26.4 mm; metallic violet-blue, metallic green in abdomen and legs; head subquadrate, slightly longer than wide (1.19–1.34 times), wider than pronotum (1.25–1.46 times), dorsally slightly convex, ventrally almost flat (in some specimens slightly convex), with very dense, expanded, umbilicate punctures (> 30 in each half of head), arranged in “v” ( Fig. 53 View FIGURES 48 – 53 ); apical antennomere in males moderately oblong (length/width: 1.33–1.64), shorter than antennomeres 9+10 combined (0.78–0.90 times; Fig. 28 View FIGURES 20 – 31 ); mandibles with basal external channel ( Fig. 63 View FIGURES 63 – 66 ); pronotum 1.6–1.7 times as long as wide, shorter than elytra (0.81–0.90 times their length), with two slightly visible depressed areas in posterior third; prosternum moderately transverse (length/width: 0.75–0.86); aedeagus ovate, length 2.6–3.4 mm, parameres 0.37–0.48 times as long as median lobe, apical area of median lobe 0.32–0.38 times as long as the total length of median lobe, and internal sac moderately visible ( Fig. 89 View FIGURES 88 – 93 ).

Variation. The body is violet-blue, but in one specimen the abdomen is green. In most specimens (mostly males) the head is wider at the posterior angles than the anterior ones, in some they are equal in width. The majority of the specimens has dense punctation that covers almost the entire ventral surface of the head, in some specimens the punctures are less dense and are confined to the lateral and posterior areas.

Comparative notes. Based on the revision of the holotypes, P. l a u t u s ( Casey, 1906) is a junior synonym of P. puncticeps ( Sharp, 1885) . Casey (1906) was unable to identify P. lauta with any species of Sterculia , Agrodes or Plochionocerus described in the Biologia Centrali-Americana. He probably did not study the type specimens of the species described by Sharp (1885) and only examined a small number of specimens; however, the original description of both species are coincident in describing the development of the punctures in the ventral surface of the head and the length/width proportions of the antennomeres. It is similar to P. impressipennis ; the main differences are discussed in the Comparative notes of that species.

Geographical distribution. Costa Rica and Panama ( Herman 2001).

USNM

Smithsonian Institution, National Museum of Natural History

SEMC

University of Kansas - Biodiversity Institute

INBC

Instituto Nacional de Biodiversidad (INBio)

IRSNB

Institut Royal des Sciences Naturelles de Belgique

FMNH

Field Museum of Natural History

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Plochionocerus

Loc

Plochionocerus puncticeps ( Sharp, 1885 )

Asiain, Julieta, Márquez, Juan & Morrone, Juan J. 2007
2007
Loc

Sterculia puncticeps

Herman 2001: 3746
Herman 2001: 3745
Bernhauer 1914: 315
Casey 1906: 360
Sharp 1885: 470
1885
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