Hecyrapion anisorhynchum (Gerstaecker) Kissinger, David G., 2005

Kissinger, David G., 2005, Review Of Apioninae Of Chile (Coleoptera: Curculionoidea: Apionidae), The Coleopterists Bulletin 59 (1), pp. 71-90 : 77

Hecyrapion anisorhynchum (Gerstaecker) , new combination

Apion anisorhynchum Gerstaecker, 1854: 239 . Type locality: Buenos Aires, Argentina. Treatment based on material in BMNH determined by J. Balfour-Browne.

Hecyrapion anisorhynchum is near H. novercale . In comparison, H. anisorhynchum length is 2.9–3.4 mm; on the disk of the elytra intervals 1, 2, 4, and 6 have distinctly finer scales than intervals 3, 5, and 7; the rostrum of the female is distinctly curved; the rostrum of the male has the ventral keel more strongly developed; and the endophallus with 2 rows of 12–13 teeth 30–50 microns long; for H. novercale the length is 1.9–2.2 mm; on the disk of the elytra all intervals have similar scales; the rostrum of the female is nearly straight; the rostrum of the male has only a suggestion of the ventral keel; endophallus with 2 rows of 6 teeth 7–25 microns long.