54 J. L. LECONTE, M. D. 



4. -Head and prothorax entirely yellow; antennse with two basal joints yellow. 

 Length 9 mm.; Cal 23. traiisntarinus Motsch. 



Head and prothorax yellow, the former black behind tlie eyes; antennpe with 



two basal joints yellow. Length 8 mm. ; Cal 24. graiidicollis Lee. 



Head black, with the mouth and front yellow; antennre entirely black: pro- 

 thorax yellow witli a large black anterior spot. Length 8 mm. ; N. Mex. ; 



Ool 25. fidelis Lee. 



a. — Head black, sides of front testaceous. 

 5. — Mouth and prothorax yellow; the latter with a black dorsal stripe wider at 

 the front margin, abbreviated behind, not attaining the base; antennse 



entirely black. Length 6—9 mm. ; Or.; B. Col 26. oregonus Lee. 



a.- Prothoracic black stripe reduced to a discoidal spot; scopus Lee. 

 p. — Prothorax entirely yellow, basal joints of antennse yellow beneath ; ( 9 )• 

 This form resembles grandinolHs. and differs chiefly by the ventral 

 segments not being entirely ferruginous or yellow. 

 6. — Month and prothorax yellow, the latter with a broad black dorsal stripe; 

 9 with the prothorax wider than in the % , and antennse half as long as 

 the body; % antennae two-thirds as long as the body, stouter, subserrate. 

 Lengths — 7 mm.; Can.; Pa.; Ky. ; L. Sup. ; armi^er Couper 



27. iinpr<'SSiis Lee. 



Tlie individuals with wide prothoracic vitta, especially the % % resemble 



lineola, but are at once recognized by the form of the claws; it varies 



as follows : 



a.— Prothoracic stripe narrow, wider along the basal and apical margins; 



tuberr.ulatus Lee. 

 (i. — Prothorax entirely yellow ; coUaris Lee. 

 7. — Black, prothorax moderately margined, yellow, with two large black spots, 

 mouth testaceous. Length 7 mm. ; Col., Garland ; Wy., Como. 



28. alticola n. sp. 



Ferruginous, transverse band of liead, two lavcce prothoracic spots, knees, tibise, 



tarsi and elytra black, the latter with side margin yellow, metathorax dusky, 



antennpe black, first joint pale beneath; prothorax very widely margined, 



sparsely punctured. Length (5 — 7 mm. ; Atlantic region ; Ks. 



21). bilineatii!^ Say. 

 a. — Head nnd first joint of antennfe ferruginous. 



F>. 

 Black, mouth testaceous; jirothorax yellow, with two large discoidal black spots 



connected on the median line. Length 6 — 8 mm.; Cal. ..30. (livisilK Lee. 

 P''erruginous, head behind the eyes, large prothoracic spot and elytra blackish ; 



trunk and ventral segments dusky. Length 6 — 7 mm.; Cal. 



31. iiotatiiN Mann. 



a. — Yellow, elytra and prothoracic sjiot dusky; larvalis Lee. 

 Black, head in front of the eyes, prothorax, sides and apex of abdomen yellow. 



Length 7 — 10 mm.; Cal 32. laiitiis Lee. 



Similar to lautiis, but legs also feri'uginous. Length 9 mm.; Cal., San Diego; 



(Bolter) 33. OCliropilS n. sp. 



V. 



The bii.sa] dilatation of the claws is more distinct in % than $ , and 

 botli of tlie front claws socnn to be cleft in that sex. 



