March 2026: Since the original publication of this tool, Ischiocentra nobilitata Thomson, 1868Thomson, 1868:
Thomson J. 1868. Révision du groupe des oncidérites (Lamites, cérambycides, coléoptères). Physis Recueil d'Histoire Naturelle. 2(5):41–92. was synonymized with I. clavata Thomson, 1868Thomson, 1868:
Thomson J. 1868. Révision du groupe des oncidérites (Lamites, cérambycides, coléoptères). Physis Recueil d'Histoire Naturelle. 2(5):41–92. by Nearns and Tavakilian (2015)Nearns and Tavakilian (2015):
Nearns EH, Tavakilian G-L. 2015. Seven new species of Oncideres Lacordaire, 1830 (Coleoptera: Cerambycidae: Lamiinae: Onciderini) from South America, with notes on additional taxa. Arquivos de Zoologia. 46(7):87-113.. This taxonomic change is reflected in "Included Species". Other sections in this fact sheet have not been edited to account for this synonymy.
Elongate-oblong, small to moderate-sized, ranging from about 11–20 mm in length. Integument generally dark brown or ferrugineous with whitish, ferrugineous, and ochraceous pubescence. Head with frons subquadrate to elongate, about as wide as width of two lower eye lobes. Eyes with lower lobes oblong. Genae variable in shape, from elongate to transverse, distinctly shorter than lower eye lobes. Antennal tubercles prominent, widely separated; tubercles not armed at apex or armed with a small projection, or with a short, blunt horn. Antennae about as long as overall body length, or as much as twice as long; scape clavate, about as long or shorter than antennomere IV; antennomere III variable in shape, from nearly straight to curved to sinuate, longer than scape and antennomere IV; antennomere XI shorter than X (females) or longer than X (males). Pronotum transverse, roughly cylindrical, with lateral tubercles. Elytra with sides roughly parallel to attenuate; elytral apices individually rounded; elytra generally uniform in coloration or speckled, or with distinct maculae; base of elytra with two prominent tubercles at humeri. Basal 1/3 of elytra with moderate to dense punctation, surface coarsely punctate to granulate-punctate. Procoxae without projection or with distinct, curved hook (males). Mesosternal process with apex feebly emarginate. Metafemora moderate to short in length, about 1/3–1/4 as long as elytra.
The combination of the following characters will help to distinguish this genus: large eyes; roughly cylindrical pronotum, with lateral tubercles; base of elytra with two prominent tubercles at humeri; and elytra with sides roughly parallel to slightly attenuate.
Superficially resembles Cordites and Ischiosioma.
Central America (Costa Rica, Panama); South America (Brazil, Colombia, Venezuela)
Apocynaceae (Mandevilla veraguasensis)
Unknown
The genus Ischiocentra currently contains nine species: I. clavata Thomson, 1861; I. diringshofeni Lane, 1956Lane, 1956:
Lane F. 1956. Cerambycoidea Neotropica nova IV. Dusenia. 7(1):1–31, 1 pl.; I. disjuncta Martins and Galileo, 1990Martins and Galileo, 1990:
Martins UR, Galileo MHM. 1990. Onciderini (Coleoptera, Cerambycidae, Lamiinae): sinonimias, novos taxons, chaves e notas. Papeis Avulsos de Zoologia. 37(4):53–95., I. hebes (Thomson, 1868Thomson, 1868:
Thomson J. 1868. Révision du groupe des oncidérites (Lamites, cérambycides, coléoptères). Physis Recueil d'Histoire Naturelle. 2(5):41–92.); I. insulata (Rodrigues and Mermudes, 2011); I. monteverdensis Giesbert, 1984Giesbert, 1984:
Giesbert EF. 1984. The genus Ischiocentra in Central America (Coleoptera: Cerambycidae). The Wasmann Journal of Biology. 43(1–2):78–83.; I. punctata Martins and Galileo, 2005; I. quadrisignata Thomson, 1868Thomson, 1868:
Thomson J. 1868. Révision du groupe des oncidérites (Lamites, cérambycides, coléoptères). Physis Recueil d'Histoire Naturelle. 2(5):41–92.; I. stockwelli Giesbert, 1984Giesbert, 1984:
Giesbert EF. 1984. The genus Ischiocentra in Central America (Coleoptera: Cerambycidae). The Wasmann Journal of Biology. 43(1–2):78–83..
More species images are available in the Gallery.
Ischiocentra Thomson, 1861
subtribe: Hypsiomina
type species: Ischiocentra clavata Thomson, 1861
Bezark and Monné (2013)Bezark and Monné (2013):
Bezark LG, Monné MA. 2013. Checklist of the Oxypeltidae, Vesperidae, Disteniidae and Cerambycidae, (Coleoptera) of the Western Hemisphere., Dillon and Dillon (1945)Dillon and Dillon (1945):
Dillon LS, Dillon ES. 1945. The tribe Onciderini (Coleoptera: Cerambycidae) Part I. Reading, Scientific Publications, Reading Public Museum and Art Gallery, Number 5. 186 pp., Giesbert (1984)Giesbert (1984):
Giesbert EF. 1984. The genus Ischiocentra in Central America (Coleoptera: Cerambycidae). The Wasmann Journal of Biology. 43(1–2):78–83., Lane (1956)Lane (1956):
Lane F. 1956. Cerambycoidea Neotropica nova IV. Dusenia. 7(1):1–31, 1 pl., Martins and Galileo (1990)Martins and Galileo (1990):
Martins UR, Galileo MHM. 1990. Onciderini (Coleoptera, Cerambycidae, Lamiinae): sinonimias, novos taxons, chaves e notas. Papeis Avulsos de Zoologia. 37(4):53–95., Martins and Galileo (2005b)Martins and Galileo (2005b):
Martins UR, Galileo MHM. 2005b. Cerambycidae (Coleoptera) da Colômbia. VII. Novos táxons, novos registros, nova sinonímia, nova combinação e novo nome. Revista Brasileira de Zoologia. 22(1):5–18., Monné (2005)Monné (2005):
Monné MA. 2005. Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae. Zootaxa. 1023:1–759., Nearns and Tavakilian (2015)Nearns and Tavakilian (2015):
Nearns EH, Tavakilian G-L. 2015. Seven new species of Oncideres Lacordaire, 1830 (Coleoptera: Cerambycidae: Lamiinae: Onciderini) from South America, with notes on additional taxa. Arquivos de Zoologia. 46(7):87-113., Thomson (1868)Thomson (1868):
Thomson J. 1868. Révision du groupe des oncidérites (Lamites, cérambycides, coléoptères). Physis Recueil d'Histoire Naturelle. 2(5):41–92.
