480 A3IERICAX PACHYBRACHTS (cOLEOPTERa'i 



There are no biological notes on this genus at the Bureau of 

 Entomolog\- in Washington, none of the species ha^-ing ever 

 acquired an economic importance." 



Among the thousands of specimens sent me for study, there 

 are occasional examples bearing the name of the plant on which 

 they were found. These may signify much, or little, as the case 

 may be : I give them, however, for what they are worth. To these 

 I add such published records of habits or occurrence as seem 

 fairly reliable, but it is probable that some of these are based on 

 erroneous identifications. For convenience of reference the 

 species are arranged in alphabetical order. 



atomariu-s. On Ceanothm (Smith Ins. of Xew Jersey): [it is doubtful if the 

 species obsened was the true atomarius]. Occurs on the foUage of the 

 greater ragweed, wahoo and other plants. (Blatchley — writing of infaustus). 

 biritiatu-s. Willow (Van Dykej: on leaves of peppermint and grass in low 

 moist localities (Blatchley). I have many times beaten the species from 

 willows in southern California. 

 huUalus. On gooseberry at Williams. Arizona (barber «Sc Schwarz). 

 calidus. On Acacia greggii 'Hubbard & Schwarz). 

 carbonarius. Beating oak and sweeping herbage (;Blaichley). 

 confusus. Swept from vegetation near margin of cj-press swamp. 'Blatchley) . 

 jemomtm. On Carya (Baldeman), [identity doubtful]. On oak at Mobile, 



Alabama (Lodingt. 

 Var. aquilonis. Beating oak at Framingham. Mass. (Frost). 

 fuscipes var. purgatus. On Pinus ponderosa at Williams. Arizona Barber and 



Schwarz). 

 hybridus. On wild rose, Marin Co., California (\'an Dyke). 

 lirem. On Salve (LeConte;. 

 luridus. On Baptisia leucardha (Blatchley); on Ceanothus americanus, and on 



Baptisia tindoria (Woodruff). 

 lu-strans. On Ceanothus (S'an Ih-ke). 

 melanostictus. On willows at San Jose, California (Mrs. A. C. Bush— Nat. 



Mus. CoU.). 

 m-nigrum. "Sweeping herbage." 



nobUi4. On Pinus ponderosa at Williams, Arizona, 'barber & Schwarz). 

 obsoletus. On black locust , Central Missouri. (C. V. Riley— Xat . Mus. Coll.) . 

 othonus. Sweeping herbage (Blatchleyj; on Carex sp. and on Fraxinus ameri- 

 canus at Litchfield, Connecticut (WoodruffK 

 peccan-s. On Prunus virginicus, Long Island, New York (Woodniff). On 



flowers of Rumex acetosella—al'^o sweeping grass (Frost). 

 praedarus. Beaten from hazel 'Blatchley). 



prosopis. On Prosopis juliflora, Death Valley. California (^Koebele;. 

 roboris. On Quercus hicolor near New York City (Woodruff;. On flowers of 



wild hydrangea and Jersey Tea (Ceanothm) (Blatchley— .spMwan ?/-?;. 

 sobrinus'. On black locust, Central Missouri (C. V. Rfley— Xat. Mus. CoU.). 

 subfasciaius. Sweeping herbage in low places (Blatchley). 



