June-Sept., 1919.] NOTMAN : CaRABID^. 229 



Bembidium constricticolle Hayw. 



Rincon Mts., Ariz., 7-07. (Beyer.) 2 specimens. 



This species is recorded from Colorado Springs by Casey and 

 from the San Juan River, New Mexico and Winslow, Arizona, by 

 Hayward. 



Tachys rectangulus new species. 



Form elongate-oval, convex. Color rufo-testaceous, head and thorax 

 darker; elytra iridescent with an indefinite median cloud slightly behind the 

 middle. Head as wide as the thorax at apex; eyes flattened, not prominent; 

 antennae long, reaching the basal third of the elytra, joints five to seven, three 

 times as long as wide; mentum with two forameniform punctures. Thorax one 

 third wider than long, base and apex equal in width; sides strongly rounded on 

 the apical half, oblique and straight behind to the basal sixth, where they are 

 suddenly sinuate ; anterior angles not evident, posterior angles long, rectan- 

 gular and reflexed, base slightly oblique either side. Elytra elongate-oval, 

 widest at the middle, three times as long as and one fifth wider than the 

 thorax ; sides evenly arcuate throughout, humeri rather narrow ; two inner 

 striae distinct, impunctate, eighth broadly interrupted at the middle ; recurved 

 portion of the sutural striae parallel with the suture, hooked at apex with a 

 puncture within the hook ; anterior puncture at basal third. Length, 2.75 mm. ; 

 width, 1 mm. 1 <$. 



Male: Two basal joints of the anterior tarsi dilated, with the inner apical 

 angles prolonged. 



North America, locality uncertain. Collection C. W. Leng. 



This species resembles T. proximus Say, but is more elongate and 

 the thorax is larger and less transverse with prominent rectangular 

 posterior angles. 



Tachys conjugens new species. 



Form elongate, subparallel, depressed. Color rufo-testaceous, eyes black. 

 Head as wide as long, wider than the thorax at apex, eyes moderately large and 

 convex; frontal impressions short, broad and shallow, not extending on the 

 clypeus ; mentum strongly emarginate, tooth strong with a broadly rounded 

 apex; forameniform punctures absent; antennae moderately long and slender, 

 reaching basal one fourth of the elytra, joints sub-equal, basal joint stouter, 

 two, three and four more slender, the others twice as long as wide, slightly 

 compressed. Thorax one third wider than long, two thirds as wide as the 

 elytra, widest at apical third ; base as wide as the apex ; sides strongly 

 rounded in front, slightly sinuate at basal third, thence straight and slightly 

 oblique to the obtuse and sharply defined posterior angles ; anterior angles not 

 defined, apex slightly emarginate, posterior transverse impression strong, 

 angulate at middle and punctate; base margined, basal area faintly rugose; 



