A Review Of The Genus Eubulus Kirsch 1869 In The United States And Canada (Curculionidae: Cryptorhynchinae)
Author
Anderson, Robert S.
Research Division Canadian Museum of Nature P. O. Box 3443, Station D Ottawa, ON. K 1 P 6 P 4, CANADA
randerson@mus-nature.ca
text
The Coleopterists Bulletin
2008
2008-06-01
62
2
287
296
journal article
10.1649/1064.1
1938-4394
4924310
Key to species of
Eubulus
Kirsch
in the
United States
and
Canada
1. Size larger (
4.8–6.5 mm
); frons foveate; eyes separated by almost width of base of rostrum in frontal view; area above each eye with oblique subcarinate ridge; femora each with two distinct teeth on inner margin, basal (proximal) tooth low and rounded...................................
E. parochus
(Herbst)
19. Size smaller (
2.8–4.9 mm
); frons not foveate; eyes separated by half to almost width of base of rostrum in frontal view; oblique subcarinate ridge above each eye very low or lacking; femora each with two small indistinct teeth on inner margin, hind femora only with small single tooth, or margin simple, lacking tooth..................................................................... 2
2. Pronotum with median tuft of suberect to erect broad scales (may be abraded); eyes separated by about two-thirds to almost width of rostrum at base; femora each with two very small, indistinct teeth on inner margin; male first ventrite longitudinally concave medially, last ventrite of both sexes with uniformly appressed, broad scales, scales lighter in color laterally on ventrites 3–5; aedeagus subparallel throughout basal one half of length, internal sac with no obvious denticles; tergite VIII of female broadly rounded, apical margin finely dentate........................................
E. bisignatus
(Say)
29. Pronotum lacking median tuft of suberect or erect broad scales; eyes separated by about half width of rostrum at base, eyes slightly converging dorsally; front and middle femora each lacking teeth along inner margin, hind femora with single small tooth; male first ventrite uniformly convex, ventrite 5 with fine, golden, bifid scales each directed towards middle of posterior margin; females with all ventrites with broad appressed scales uniform in form and color; aedeagus constricted near base, internal sac with dentate longitudinal fold throughout length; tergite VIII of female narrowed, apical margin with 4 large denticles..................
E. obliquefasciatus
(Boheman)