March 2026: Since the original publication of this tool, Jamesia Jekel, 1861Jekel, 1861:
Jekel H. 1861. Observations suggérées par les notes de M. Chevrolat sur les cérambycides de M. Thomson. Journal of Entomology. 1:255–262. was synonymized with Hypselomus Perty, 1832Perty, 1832:
Perty JAM. 1832. De insectorum in America meridionali habitantiam vitae genere, moribus ac distributione geographica observationes nonnullae. Delectus animalium articulatorum quae in itinere per Brasilian annis MDCCCXVII–MDCCCXX jussu at auspiciis Maximiliani Josephi I, Bavariae regis augustissime peracto collegerunt Dr. J. B. de Spix et Dr. C. F. Ph. de Martius. Monachii: 61–124. by Souza et al. (2024)Souza et al. (2024):
Souza DS, French RLK, Silva Jr. JO, Nearns EH, Marinoni L, Swift IP, Miller KB, Sperling FAH, Monné M. 2024. Cutting the sap: First molecular phylogeny of twig-girdler longhorn beetles (Coleoptera: Cerambycidae: Lamiinae: Onciderini) suggests shifts in host plant attack behaviours contributed to morphological evolution. Systematic Entomology. 502:369–389., resulting in 11 species being transferred to Hypselomus. These species are added to "Included Species". Other sections in this fact sheet have not been edited to account for these taxonomic changes.
Elongate-ovate, robust, moderate to large-sized, ranging from about 15–30 mm in length. Integument generally dark brown or black with brown, ferrugineous, and ochraceous pubescence. Head with frons elongate, about as wide as width of 1 1/2 to two lower eye lobes. Eyes with lower lobes large, oblong; area connecting upper and lower lobes taller than upper lobe. Genae elongate, about as tall to distinctly shorter than lower eye lobes. Antennal tubercles prominent, narrowly separated, contiguous at base; tubercles not armed at apex. Antennae distinctly shorter than overall body length (females), or about as long (males); scape bowed, gradually expanded to apex, longer than antennomere IV; antennomere III variable in shape, from nearly straight to curved to sinuate, about as long or shorter than scape and longer than antennomere IV. Pronotum transverse, strongly conical, wider at base, without lateral tubercles; pronotum with distinct, basal, transverse sulcus. Elytra with sides strongly attenuate; elytral apices individually rounded; elytra generally uniformly brownish; base of elytra with two obtuse tubercles at humeri as well as two longitudinal, arcuate, strongly elevated crests, each crest studded with several round, shiny tubercles. Basal 1/3 of elytra without punctation. Procoxae without projection. Mesocoxae with distinct, obtuse tubercle. Mesosternal process with apex deeply emarginate. Metafemora long to moderate in length, about 1/2–1/3 as long as elytra.
The combination of the following characters will help to distinguish this genus: large eyes; narrowly separated antennal tubercles, contiguous at base; bowed scape, gradually expanded to apex; and base of elytra with two longitudinal, arcuate, strongly elevated crests, each crest studded with several round, shiny tubercles.
Strongly resembles Jamesia and Typhlocerus.
South America (Argentina, Bolivia, Brazil, Paraguay)
Convolvulaceae (Ipomoea batatas [sweet potato]); Fabaceae (Myroxylon balsamum)
Unknown
The genus Hypselomus currently contains 12 species, 11 of these were recently transferred from Jamesia, which is now considered a synonym of Hypselomus (Souza et al. 2015): H. bellus (Galileo and Martins, 2003Galileo and Martins, 2003:
Galileo, MHM, Martins UR. 2003. Cerambycidae (Coleoptera) da Colombia. V. Lamiinae com unhas tarsais divergentes. Iheringia, Série Zoologia, Porto Alegre. 93(2):167–176.), H. cristatus Perty, 1832Perty, 1832:
Perty JAM. 1832. De insectorum in America meridionali habitantiam vitae genere, moribus ac distributione geographica observationes nonnullae. Delectus animalium articulatorum quae in itinere per Brasilian annis MDCCCXVII–MDCCCXX jussu at auspiciis Maximiliani Josephi I, Bavariae regis augustissime peracto collegerunt Dr. J. B. de Spix et Dr. C. F. Ph. de Martius. Monachii: 61–124., H. duofasciatus (Dillon and Dillon, 1952Dillon and Dillon, 1952:
Dillon LS, Dillon ES. 1952. The tribe Onciderini. Supplementary notes. Annals of the Entomological Society of America. 45(1):59–79.), H. ericksoni (Hovore, 1990), H. fuscofasciatus (Dillon and Dillon, 1952Dillon and Dillon, 1952:
Dillon LS, Dillon ES. 1952. The tribe Onciderini. Supplementary notes. Annals of the Entomological Society of America. 45(1):59–79.), H. globifer (Fabricius, 1802), H. lineatus (Fisher, 1926), H. multivittatus (Bates, 1869Bates, 1869:
Bates HW. 1869. XXV. New species of Coleoptera from Chontales, Nicaragua. The Transactions of the Entomological Society of London. 1869:383-389.), H. papulentus (Thomson, 1868Thomson, 1868:
Thomson J. 1868. Révision du groupe des oncidérites (Lamites, cérambycides, coléoptères). Physis Recueil d'Histoire Naturelle. 2(5):41–92.), H. philetus (Dillon and Dillon, 1945Dillon 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.), H. pyropinus (Dillon and Dillon, 1945Dillon 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.), H. ramirezi (Nearns and Tavakilian, 2012).
More species images are available in the Gallery.
Hypselomus Perty, 1832Perty, 1832:
Perty JAM. 1832. De insectorum in America meridionali habitantiam vitae genere, moribus ac distributione geographica observationes nonnullae. Delectus animalium articulatorum quae in itinere per Brasilian annis MDCCCXVII–MDCCCXX jussu at auspiciis Maximiliani Josephi I, Bavariae regis augustissime peracto collegerunt Dr. J. B. de Spix et Dr. C. F. Ph. de Martius. Monachii: 61–124.
subtribe: Hypsiomina
type species: Hypselomus cristatus Perty, 1832Perty, 1832:
Perty JAM. 1832. De insectorum in America meridionali habitantiam vitae genere, moribus ac distributione geographica observationes nonnullae. Delectus animalium articulatorum quae in itinere per Brasilian annis MDCCCXVII–MDCCCXX jussu at auspiciis Maximiliani Josephi I, Bavariae regis augustissime peracto collegerunt Dr. J. B. de Spix et Dr. C. F. Ph. de Martius. Monachii: 61–124.
generic synonymies: Clytemnestra Thomson, 1860Thomson, 1860:
Thomson J. 1860. Essai d'une classification de la famille des cérambycides et materiaux pour servir a une monographie de cette famille. Paris.; Hypsioma (Jamesia) Jekel, 1861Jekel, 1861:
Jekel H. 1861. Observations suggérées par les notes de M. Chevrolat sur les cérambycides de M. Thomson. Journal of Entomology. 1:255–262. [treated as a full genus in later works, including this tool]; Paraclytemnestra Breuning, 1974Breuning, 1974:
Breuning S. 1974. Neue Lamiinae (Coleoptera, Cerambycidae). Mitteilungen aus dem Zoologischen Museum in Berlin. 50(2):237–241.
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., Monné (2005)Monné (2005):
Monné MA. 2005. Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae. Zootaxa. 1023:1–759., Perty (1832)Perty (1832):
Perty JAM. 1832. De insectorum in America meridionali habitantiam vitae genere, moribus ac distributione geographica observationes nonnullae. Delectus animalium articulatorum quae in itinere per Brasilian annis MDCCCXVII–MDCCCXX jussu at auspiciis Maximiliani Josephi I, Bavariae regis augustissime peracto collegerunt Dr. J. B. de Spix et Dr. C. F. Ph. de Martius. Monachii: 61–124., Souza et al. (2024)Souza et al. (2024):
Souza DS, French RLK, Silva Jr. JO, Nearns EH, Marinoni L, Swift IP, Miller KB, Sperling FAH, Monné M. 2024. Cutting the sap: First molecular phylogeny of twig-girdler longhorn beetles (Coleoptera: Cerambycidae: Lamiinae: Onciderini) suggests shifts in host plant attack behaviours contributed to morphological evolution. Systematic Entomology. 502:369–389.
