164 ENTOMOLOGICAL NEWS [June, '22 



AMERICANA GROUP. Middle tibia without subapical external spur ; 

 clypeus uni-emarginate at sides ; elytra 4-punctate ; intermediate anal 

 setae approximate and distant from the lateral ones ; first ventral seg- 

 ment with diverging raised lines at middle. Includes analis, amcricana, 

 tufa, morula and cordata. 



Analis is not known to me ; the remaining forms are appar- 

 ently identical in all respects except color and size and may be 

 varieties of a single species. 



BIPUSTULATA GROUP. Middle tibia without subapical spur; clypeus 

 rounded at sides almost throughout ; prothorax with pseudobasal mar- 

 ginal line continuing the side margins which do not attain the extreme, 

 base ; elytra 2-punctate ; intermediate anal setae approximate. Includes 

 stnatopunctata, fcrrca, conrc.ra, bipustitlata, marginipennis, fostica, 

 stigmula. 



Putzey's species are practically unknown to us. They may 

 perhaps be recognized by LeConte's table, but I suspect will in 

 part prove not to be valid. 



The following species in my collection is undescribed : 



C. oregona new species. 



Similar in form, size and general characters to punctulata, from 

 which it differs as follows: The color is dark reddish brown to 

 piceous brown, the prothoracic punctuation sparse, and so fine as to be 

 barely perceptible; mentum strongly longitudinally carinate, the trans- 

 verse posterior tumidity rectilinear; basal joint of protarsus without 

 external dentiform prominence. In punctulata the color is bright red 

 brown, prothorax distinctly punctulate, longitudinal carina of mentum 

 feeble, the posterior transverse tumidity Insinuate behind, basal joint 

 of protarsus with an external dentiform angulation. 



Six examples of oregona are before me, the length varying 

 from 4.8 to 5.5 mm. The t\pc is from Corvallis. Oregon. 

 Other examples are from Seattle, Wash. (Prof. O. B. John- 

 son). All in my collection. 



The dentiform angulation on the outer side of the basal 

 protarsal joint is a quite persistent feature peculiar to the spe- 

 cies of the iinpressifrons group ; its absence in orcyoua is there- 

 fore notable. Oregona may probably be safely determined by 

 its locality label; the Calif ornian punctulata is the only other 

 species known from the Pacific Coast region and is rare at 

 that. 



