Haliplus Latreille 1802:77

Key to Subgenera of Haliplus

1. Metatibia with a longitudinal striole upon internal (upper) face; pronotum always without lateral basal longitudinal plicae.
   ..............................Liaphlus Guignot 1928:138
   Metatibia without a longitudinal striole upon internal (upper) face.
   ..................................................2

2. Body above and below completely covered with dense punctulation (tertiary punctulation).
   ..............................Haliplidius Guignot 1928:138
   Punctulation nearly wanting, reduced to a few very sparse punctures scattered along elytral intervals.
   ..................................................3

3. Pronotum marked on each side with a basal longitudinal plica.
   ..................................................4
   Pronotum without lateral basal longitudinal plicae.
   ..............................Paraliaphlus Guignot 1930:36

4. Posterior angle of pronotum strongly protuberant outside the shoulder, which is completely rounded.
   ..............................Phalilus Guignot 1935:36
   Posterior angle of pronotum not protuberant, applied against the shoulder, which is more or less conspicuous.
   ..................................................5

5. Metatibia with superior marginal row of setae regular to the apex; prosternal process with distinct transverse margin at base.
   ..............................Neohaliplus Netolitzky 1911:273
   Metatibia with superior marginal row of setae divided into two toward apex; prosternal process not margined at base (exceptionally a trace of margin in Haliplus japonicus Sharp 1873:55.
   ..............................Haliplus s. str.

Literature Cited

Guignot, F.

• 1928. Notes sur les Haliplus du groupe fulvus F. [Coleopt. Haliplidae]. Ann. Soc. Entomol. France 97:133-151.

• 1930. Notes sur quelques Haliplus [Col. Haliplidae]. Bull. Soc. Entomol. France 31:71-75.

• 1935. Douzieme note sur les Hydrocanthares. Bull. Soc. Entomol. France 40:36-40.

• 1933. Revision of the North American species (North of Mexico), of the genus Haliplus, Latreille. Trans. Roy. Canadian Inst. 19:1-76.