Chelobasis aemula
Creators
Description
Chelobasis aemula (Waterhouse 1881)
(Figures 1, 5)
Arescus aemula Waterhouse 1881: 266 (Holotype: Ecuador, BMNH). Donckier 1899: 568 (catalog).
Chelobasis aemula (Waterhouse). Weise 1911a: 12 (catalog), 1911b: 17 (catalog); Blackwelder 1946: 721 (faunal list); Papp 1953: 29 (catalog); Uhmann 1957: 33 (catalog).
Yellow; antennae, scutellum, and apex of tibiae and tarsi black; elytra with dark blue spots. Head: smooth; slight medial sulcus between eyes; frontal horn quadrate, broad; frons not projecting, with a few punctures. Antenna: extends to humerus; antennomere 1 elongate, apical projection as long as 2; 2 cylindrical, short; 3 cylindrical, elongate, longer than 1; 4–10 decreasing in length; 4 less than ½ length of 3; 11 pointed at apex; 1–4 alutaceous; 5–8 with scattered setae; 9–11 setose. Pronotum: longer than wide; lateral margin straight and divergent for basal ½, then expanding and rounded, then sharply angulate and convergent to apex; anterior angle angulate; posterior angle with large acute tooth; flat with scattered punctures; pronotal length 1.7–1.8 mm (n=8); pronotal width 2.9–3.0 mm. Scutellum: triangular; micropunctate. Elytron: expanding to exterior apical angle, then rounded to apex; lateral and apical margins smooth; sutural angle conjointly rounded; 10 rows of lightly impressed punctures plus short scutellar row; humerus rounded; elytral length 9.1–10.0 mm; elytral width 4.3–4.4 mm. Leg: tibia expanded to apex. Total length: 11.6–13.0 mm.
Larva. Unknown.
Larval host plant. Unknown.
Comparative notes. This species can be easily distinguished by the rounded elytral apices, the angulate lateral margin of the pronotum, and by antennomere 2 being transverse.
Distribution. Ecuador.
Specimens examined. Ecuador. Carchi: Gabriel, 750 m, 12.x.1970 (BPBM). Napo: Sarayacu (BMNH). Pinchincha: Estacion Orongo Palmitopomba, 23.vii.2001 (USNM). Total: 8.
Notes
Files
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- BMNH , BPBM , USNM
- Event date
- 1970-10-12 , 2001-07-23
- Family
- Chrysomelidae
- Genus
- Chelobasis
- Kingdom
- Animalia
- Order
- Coleoptera
- Phylum
- Arthropoda
- Scientific name authorship
- Waterhouse
- Species
- aemula
- Taxon rank
- species
- Verbatim event date
- 1970-10-12 , 2001-07-23
- Taxonomic concept label
- Chelobasis aemula (Waterhouse, 1881) sec. Staines, 2009
References
- Waterhouse, C. O. (1881) On the Coleopterous insects belonging to the family Hispidae collected by Mr. Buckley in Ecuador. Proceedings of the Zoological Society of London, 1881, 260 - 269.
- Donckier de Donceel, H. (1899) Catalogue systematique des Hispides. Annales de la Societe Entomologique de France, 68, 540 - 615.
- Weise, J. (1911 a) Coleopterorum Catalogus. Chrysomelidae: Hispinae. W. Junk, Berlin. pars 35, 1 - 94.
- Blackwelder, R. E. (1946) Checklist of the Coleopterous insects of Mexico, Central America, the West Indies, and South America. United States National Museum Bulletin, 185, 551 - 763.
- Papp, C. S. (1953) The Hispinae of America. Third contribution for promoting the scientific results of the International Hylean Amazon Inst. in Manaos, Brazil. Portugaliae Acta Biologica, Series B, 4, 1 - 147.
- Uhmann, E. (1957) Chrysomelidae: Hispinae, Hispinae Americanae. In: W. D. Hincks (ed.). Coleopterorum Catalogus Supplementa. W. Junk. The Hague. Pars 35 (1), 1 - 153.