Iontoclerus sericeus (Klug),

Opitz, Weston, 2008, Classification, natural history, and evolution of Epiphloeinae (Coleoptera: Cleridae). Part VII. The genera Hapsidopteris Opitz, Iontoclerus Opitz, Katamyurus Opitz, Megatrachys Opitz, Opitzia Nemésio, Pennasolis Opitz, new genus, Pericales Opitz, new genus, Pteroferus Opitz, new genus, and Turbophloeus Opitz, new genus, Zootaxa 1754, pp. 1-40: 12-14

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Iontoclerus sericeus (Klug)


Iontoclerus sericeus (Klug) 

Figures 22–24; map 3.

Enoplium sericeum Klug, 1842: 373  . Lectotype ♂. Here selected. New combination. Type locality: Brasil, Virmond (ZMHB). (Specimen point mounted, gender symbol affixed to paper point; specimen number label-58859; ZMNH repository label; locality-identification label; repository label; lectotype label; identification label.) Kuwert, 1894: 8 ( Pelonides  ). Gahan, 1910: 72 ( Epiphlaeus  ). Wolcott, 1912: 75 ( Ichnea  ). Chapin 1927: 9. Blackwelder, 1945: 389. Corporaal, 1950: 272 ( Epiphloeus  ). Paralectotypes: One specimen. Brazil: Amazonas: Pará, Sieber. (ZMHB).

Diagnosis: From superficially similar specimens of I. humeralis  , beetles of I. sericeus  may be distinguished by the concolorous (yellow) condition of the pronotum and concolorous (dark brown) elytra.

Description: Length 7. 0 mm; width 2.2 mm. Form: Oblong subrectangulate. Integument: Cranium and pronotum yellow, elytra and legs dark brown. Head: Eyes large, very convex; vertex between eyes narrow. Thorax: Side margins slightly convex, anterior transverse depression not prominent, disc with slightly elevated and depressed regions, punctations very small; elytral side margins slightly broadened at middle, then broadly rounded to apex, disc punctations very small and profusely distributed; Abdomen: Aedeagus as in figure 24. Male Mesodermal Reproductive Organs (fig. 23): Two pairs of accessory glands; testis comprised of about 40 follicles. Female Mesodermal Reproductive Organs (fig. 22): Spermathecal capsule not heavily sclerotized; spermathecal gland attached to subapex of spermatheca capsule; bursa copulatrix saccular.

Variation: Length 7.0–8.0 mm; width 1.8–2.2 mm. The amount of yellow on the humerus and the extent of yellow streaking posteriorly from the yellow humerus varies.

Natural history: Specimens have been collected throughout the year at altitudes ranging from 160–450 m; some in a Malaise trap and at night on tree bark.

Distribution (map 3): The composite range for this species extends from Columbia to Bolivia. I have examined 358 specimens. Columbia: Putumayo: PNN La Paya, Cabaña La Paya, 0°2' S 75°12' W, 5-25-XII- 2001, Malaise trap, 330 m, E. Lozano. French Guiana: Cayenne: collection date not noted, collector not noted: Ret De L’Amse: Sinnamary, 31-VII-1978, Degallier. Brazil: Mato Grosso: Sinop, Coordenadas, collection day not noted-X-1974, M. Alvarenga; idem, 350 m, M. Alvarenga; idem, collection day not noted-X- 1976, M. Alvarenga: Humboldt, 10°25' S 59°28' W, 20-III- 1977, 200 m, Stockwell; Diamantino, 28-IX-1981,

MAP 3. Distribution of Opitzia apicula  , Iontoclerus humeralis  , I. sericeus  , Turbophloeus simplex  , and Pteroferus zolnerowichi  .

E. Furtado; idem, Fac. Sao Joao, 22-XI-1981, E. Furtado; idem, 28-IX-1981, E. Furtado; idem, collection day not noted-XI-1981, E. Furtado; idem, collection day not noted-XII-1981, E. Furtado; idem, Fazenda Rio Ari- nas, collection day not noted-VI-1983, E. Furtado: Pará: Itaituba, collection date not noted, collector not noted; Tucurui, collection day not noted-I-1979, M. Alvarenga: Amazonas: Manaus, 1 km W Taruma Falls, 19-I-1981, G. Ekis: Rondônia: BR-368kKM-48, 27-IX-1979, Malaise trap, C. Biancardi; 62 km SE Ariquemes, 17-24-III- 1989, 180 m, W. J. Hanson; idem, 15-22-III-1991, W. Hanson, G. Bohart; vic. Caucalandia, 10°32' S 62°48' W, 28-X-1991, 160- 350 m, John R. MacDonald; idem, 29-X-1991, J. MacDonald; idem, 13-25-IX-1992, W. J. Hanson; idem, 8-20-XI-1994, W. J. Hanson; idem, 7-18-XI-1995, W. J. Hanson; idem, 5-- 16-XI-1996, W. J. Hanson; idem, 22-31-X-1997, W. J. Hanson; idem, 1-- 14-XI-1997, B. Dozier; idem, 1-17-XI, B. K. Dozier. Ecuador: Napo: Limoncocha, 9-VI-1977, W. E. Steiner: Sucumbíos: E Nueva Loja, 5 km W Parahuacu Oil Station, 31-XII-1989, MacRae; Sacha Lodge, 5° S 77° W, 14-24-III-1994, Malaise trap, 270 m, Hibbs; 24 km F. Atahualpa, 13-14-IV- 1997, 450 m, E. Giesbert, F. Hovore; Yasuni Res. Sta., 6°36' W 0°38' S, 19-30-X- 1998, 250 m, W. J. Hanson; 28 km NE Campo Cocham, 31-III-2001, F. Hovore; idem, 0°41' S, 76°24' W, 30-IX-11-X- 2002, 250 m, Malaise trap, C. Brammer. Perú: Huallaga: Chambireyacú, Yurimaguas, collection day not noted-collection month not noted-1885 M. Mathan; Tarapoto, collection day not noted-collection month not noted-1886, M. Mathan: Huánuco: Tingo Maria, Monzon Valley, 10-XI- 1954, collector not noted: Madre de Dios: Tambopata, 15 km NE Pto. Maldonado, 1-VII- 1989, 200 m, under bark, J. Ashe, R. Leschen; idem, Madre de Dios Dpto. 15 km NE Peurto Maldonado Reserva, Cuzco Amazónico, 12°33' S 69°03' W, 17-VII-1989, camp, caught by hand net, 200 m, J. S. Ashe, R. A. Leschen; idem, 19-VII- 1989, 200 m, at night on logs, J. Ashe, R. Leschen; Mt. Alogre, Rio Pachitoa , collection date not noted, G. Tessmann. Bolivia: Cochabamba: collection day not noted-collection month not noted-1906, collector not noted; Limbo , collection day not noted-collection month not noted-1953, Martinez ; Chaparé , 400 m, 17-II-1948, Zischka ; idem, 25-IX- 1949, 400 m, R. Zischka; idem, 22-X- 1949, 400 m, R. Zischka, idem, 22-X- 1949, 400 m, R. Zischka; idem, 5-XI- 1949, 400 m, Zischka ; idem, 15-IX- 1950, 400 m, R. Zischka; R. Japacani, collection date not noted, J. Steinbach; Rio Madeira , collection date not noted, Mann & Baker: La Paz : Tumupasa , no other locality noted, collection day not noted-XII-1921-1922, W. M. Mann; Specimens are deposited in AMNH, BMNH, CASC, CMNH, DZUP, EMUS, FSCA, IAVH, INSB, JNRC, MNHN, OXUM, SEMC, STRI, USNM, WFBCGoogleMaps  , and WOPC.


American Museum of Natural History


The Cleveland Museum of Natural History


Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure


Florida State Collection of Arthropods, The Museum of Entomology


Instituto de Ivestigacion de los Recursos Biologicos Alexander von Humboldt


Museum National d'Histoire Naturelle


University of Kansas - Biodiversity Institute


Smithsonian Institution, National Museum of Natural History














Iontoclerus sericeus (Klug)

Opitz, Weston 2008

Enoplium sericeum

Corporaal, J. B. 1950: 272
Blackwelder, R. E. 1945: 389
Chapin, E. A. 1927: 9
Wolcott, A. B. 1912: 75
Gahan, C. J. 1910: 72
Kuwert, A. F. 1894: 8
Klug, J. C. F. 1842: 373