TRIBE X. MACHALIXI. 255 



KEY TO EASTERN SPECIES OF GROUP I. 



a. Antennal club normal in both sexes. 



b. Femora not toothed, the front ones obliquely impressed at base on 

 the lower surface; hind angles of thorax feebly produced and 

 scarcely at all turned outward. 



c. Elytral intervals wider than the striae; sides of thorax in front 



nearly straight; length 34.5 mm. 371. HISPOIDES. 



cc. Elytral intervals narrower than the striae; punctuation very 

 coarse; sides of thorax gradually curved; length 4.5 5.5 mm. 



372. PERFORATA. 



bb. Femora toothed, not impressed at base; hind angles of thorax more 

 or less produced and divergent. 



d. Antennae inserted distinctly behind the middle of beak in both 



sexes, at basal two-fifths in male and basal one-third in female. 

 e. Black, lustre dull; thoracic punctures not confluent toward the 

 middle. 373. AUSTEBA. 



ee. Black, elytra with dark blue or greenish lustre; thoracic punc- 

 tures longitudinally confluent toward the middle. 



373a. var. SUBSTRIGA. 

 eld. Antenna? inserted at or beyond the middle in the male and about 



or slightly behind the middle in female. 



/. Elytra with a bluish tinge; antennae of male inserted at the 



middle, of female at basal two-fifths; beak of male as long as, 



of female, distinctly longer than thorax. 374. GENTILIS. 



//. Black, opaque; antennae of male inserted distinctly beyond the 



middle of beak. 375. ALUTACEA. 



eta. Antennal club of male greatly elongate and thickly clothed with erect, 



velvet-like hairs; femora not toothed. 376. BARBICORXIS. 



371 (8620). MAGDALIS. HISPOIDES Lee., 1876, 418. 



Elongate, wedge-shaped. Black, feebly shining. Beak as long as 

 thorax, slightly curved, coarsely not densely punctured; antennae inserted 

 behind its middle, first joint of funicle much stouter than second. Thorax 

 slightly longer than wide, sides nearly straight, feebly constricted near 

 apex; disc densely and rather coarsely punctate. Elytra at base one-fourth 

 wider than thorax, sides straight, feebly diverging from base; striag not 

 impressed, composed of close-set quadrate punctures; intervals flat, each 

 with a row of minute punctures. Body beneath finely and sparsely punc- 

 tate. Length 2.5 4 mm. 



Ottawa, Canada. April 5. Ranges from Newfoundland and 

 Maine to Michigan and British Columbia, south to Washington, 

 D. C., and New Mexico. Occurs on pine. 



372 (8611). MAGDALIS PERFORATA Horn, 1873, 453. 



Elongate, wedge-shaped. Black, strongly shining, antennae and tarsi 

 piceous. Beak nearly as long as head and thorax, strongly curved, rather 

 finely not closely punctate; antennae inserted near its middle. Thorax long- 

 er than wide, sides parallel behind the middle, base strongly bisinuate; 

 disc coarsely, deeply and densely punctate. Elytra gradually wider behind; 



