FAMILY LATHRIDIIDAE (Minute brown scavenger )

Y. Bousquet

Fifty-three species of lathridiids have been recorded from Canada and Alaska. These species are usually found on foliage, in rotten wood, under logs, bark of dead trees as well as in fungi and nests of social Hymenoptera, birds and mammals. A number of species, including Cartodere constricta and Aridius nodifer, are regularly found on stored products, especially damp and moldy ones. Adults and larvae feed on fungi, particularly molds. This is another family of Cucujoidea that has been poorly studied in North America. Most of the genera, particularly those of the subfamily Corticariinae, are in need of modern revision. Two subfamilies, the Lathridiidae and the Corticariinae, occur in the Nearctic Region. The generic classification of the Lathridiinae follows that of Walkley (1952).

AK (17); YK (5); NT (6); BC (34); AB (9); SK (8); MB (16); ON (19); PQ (18); NB (6); NS (7); PE (1); LB (1); NF (2); H (6); I (15)

Subfamily LATHRIDIINAE

Genus DIENERELLA Reitter Microgramme Walkley

D. arga (Reitter)+ ------ON PQ - - - - - D. costulata (Reitter)+ ------MB ON PQ - - - - - D. filiformis (Gyllenhal)+ - - - - - SK MB - - NB - PE - - D. filum (Aubé)+ - - - BC - - MB ON PQ - - - - - D. ruficollis (Marsham)+ - - - BC - - - ON PQ - NS - - NF pulicarius (Melsheimer)

Genus ENICMUS C.G.Thomson

E. aterrimus Motschulsky ------ON PQ - - - - - ferrugineus Belon opaculus LeConte E. cordatus Belon - - - BC ------E. fictus Fall AK - NT BC AB SK MB ON PQ - - - - - E. mimus Fall AK - NT BC AB SK MB ------E. nitens Fall - - - - AB - MB ON ------E. tenuicornis LeConte - - - BC - - - - PQ - - - - - laticollis LeConte

Genus THES Semenov

T. bergrothi (Reitter)+ - - - BC - SK MB - - NB NS - - - tricarinatus (W.J.Brown)

Genus LATHRIDIUS Herbst Conithassa C.G.Thomson

L. consimilis Mannerheim* AK ------parallelocollis Mannerheim L. crenatus LeConte - - - BC ------L. hirtus Gyllenhal+ - - - BC - - - ON PQ - - - - - L. minutus (Linné)+ - - - BC AB SK MB ------

porcatus Herbst reflexus LeConte L. nigritus (Fall) - - - BC ------L. protensicollis Mannerheim AK - - BC ------quadricollis Mannerheim sobrinus Mannerheim suspectus (Fall)

Genus STEPHOSTETHUS LeConte

S. breviclavis (Fall) ------ON PQ NB NS - - - S. cinnamopterus (Mannerheim) AK - - BC ------S. costicollis (LeConte) AK - - BC ------armatulus (Fall) S. lardarius (DeGeer)+ ------NF S. liratus (LeConte) AK - - BC AB SK MB ON PQ - NS - - - carinifer (Fall) trilobatus (Motschulsky) S. montanus (Fall) AK YK NT BC - - MB - PQ - - - - - laevior (W.J.Brown)

Genus ADISTEMIA Fall

A. watsoni (Wollaston)+ ------ON ------

Genus CARTODERE C.G.Thomson Coninomus C.G.Thomson

C. constricta (Gyllenhal)+ - - - BC AB SK MB ON PQ NB - - - - sculptilis (LeConte)

Genus ARIDIUS Motschulsky

A. nodifer (Westwood)+ - - - BC - - MB ON PQ - NS - - -

Subfamily CORTICARIINAE

Genus Marsham

C. canaliculata Mannerheim AK ------C. columbica Fall - - - BC ------C. dentigera LeConte - - - BC ------C. dentiventris Poppius* AK YK ------C. fenestralis (Linné)* AK - - BC ------deleta Mannerheim denticulata Kirby kirbyi LeConte obtusa LeConte rugulosa LeConte C. ferruginea Marsham* AK - NT - - - MB - PQ - - - LB - C. linearis (Paykull)* AK - NT - - - MB - PQ - - - - -

C. orbicollis Mannerheim* AK YK - BC ------munsteri Strand C. parallela Fall - YK - - AB ------C. pubescens Gyllenhal+ - - - BC - - - ON ------grossa LeConte C. salpingoides Motschulsky - - - BC ------C. serrata (Paykull)+ - - - BC ------octodentata (Say) C. serricollis LeConte ------ON ------C. spinulosa Mannerheim AK ------C. valida Fall - - - BC ------C. varicolor Fall - - - BC ------

Genus Motschulsky

M. americana (Mannerheim) - - - BC ------distinguenda auct. amer. morsa (LeConte) pusilla (Melsheimer) rufula (LeConte) M. pumila (LeConte) - - - BC - - - ON ------M. villosa (Zimmermann) - - - BC ------

Genus Reitter

C. alberta (Fall) - - - - AB ------C. cavicollis (Mannerheim) - - - BC ------C. exigua (Mannerheim) AK ------C. fuscula (Gyllenhal) AK YK NT BC - - MB ON PQ - - - - - americana auct. amer. compta (LeConte) expansa (LeConte) grata (LeConte) C. herbivagans (LeConte) - - - BC ------levis (LeConte) similata auct.

Genus Johnson

C. gibbosa (Herbst)+ - - - BC AB SK MB ON PQ NB NS - - -

Genus CORTILENA Motschulsky

C. picta (LeConte) ------ON PQ NB NS - - -