Nosodendron (Dendrodipnis) unicolor Say, 1824

Háva, Jiří, 2019, Nosodendridae deposited in the Canadian Museum of Nature, with new records and descriptions of three new species, Baltic Journal of Coleopterology 19 (1), pp. 77-87 : 77-87

Nosodendron (Dendrodipnis) unicolor Say ,

1824

Material examined: “ Crabtree. S.P., Raleigh, N:C:, Apr.12.1950, H+A Howden, U. R. Beeck”, 1 spec., ( CMNC); “Knoxville, Tenn., Oct.5.1956, H+A Howden”, 1 spec., ( CMNC); “Nr. Nanjemoy, Md., 14.viii.48, H. Howden ”, 1 spec., ( CMNC) .

Distribution: Canada: Ontario, U.S.A. ( Háva 2014).

TAXONOMY

The Neotropical species belonging to the subgenus Dendrodipnis can be divided into two groups defined by Reichardt (1976):

A. the angelum group (species longer than 4 mm). Elytral punctures not forming any clear and regular quadrangular- hexagonal meshwork):

mentum without grooves, punctate: angelum , jirii , reichardti mentum with grooves (Fig. a): leechi

B. the testudinum group (species shorter than 4 mm. Elytral punctures frequently arranged in quadrangular- hexagonal pattern):

mentum without grooves, punctate: latifrons

Hava J.

mentum with grooves (Fig. a): leechi, dybasi, testudinum , brasilianum mentum with grooves (Fig. b): mexicanum mentum with grooves (Fig. c): punctatostriatum mentum with grooves (Fig. d): subtile , derasum men tum with grooves (Fig. e): thompsoni mentum with grooves (Fig. f): politum men tum with grooves (Fig. g): bolivianum mentum with grooves (Fig. h): fasciatum men tum with grooves (Fig. i): chelonarium mentum with grooves (Fig. j): venezuelanum mentum with grooves (Fig. k): costaricanum

The Holarctic, Oriental and Australian species belonging to the subgenus Dendrodipnis can be divided into three types according to grooves on the mentum:

mentum without grooves, punctate mentum with grooves (Fig. l) - the groove is variable in broadest mentum with grooves (Fig. m)