|
|
|
BOSTRICHIDAE
Author: John F. Lawrence, 2001. |
|
Suborder Polyphaga, Series Bostrichiformia, Superfamily Bostrichoidea. |
|
Antenae with 9 to 11 segments and a 2 or 3 segments club. Antennal insertions exposed or concealed. Visible portion of procoxa globular to projecting bellow prosternum with the trochantin concealed. Procoxal cavity externally open to closed and internally closed. Mesocoxae contigous to separated by more than 1 coxal width, with mesocoxal cavity laterally closed. Tarsal formula 5-5-5. Numberof ventrites 5 without ventrites connate. Body length 2-20 mm. Elongate, slender, cylindrical to flattened, glabrous or pubescent. Head produced forward and exposed in Lyctinae and Polycaoninae, ventrally attached and concealed from above in Dinoderinae and Bostrichinae. Eyes oval. Antennal club usually large and not compact. Protibiae often modified with teeth or spur; tarsi long, lobed or not. |
|
Typical members of the family Bostrichidae (first and two last figures) are distinguished by the more or less cylindrical form, and the hood-like prothorax from which the head projects more or less ventrally. Many also have modified protibiae and strongly declined elytral apices. They resemble bark beetles in Curculionidae, but differ from them in having a large, loosely-jointed antennal club and rounded eyes. Less typical members of the group include the Lyctinae and Polycaoninae (second and third figures) which have a more or less prognathous head. |
|
Dinoderinae: Dinoderus, Rhizopertha, Prostephanus. |
 |
 |
 |
| Dinoderinae |
Lyctinae |
Polycaoninae |
 |
 |
| Bostrichinae |
Bostrichinae |
|
  |
Derechos Reservados INBio. Copyrights INBio