THE LONG- HORNED WOOD-BORING BEETLES. 



1057 



form is var. ruficeps Lee, having the head red, or partly so, the 

 front legs and base of middle and hind thighs reddish-yellow. 



Group B. 



In this group the species are usually of larger size with the hind 

 angles of thorax not prolonged ; the antennae with joints one to four 

 and half of the fifth, punctured, the remainder covered with very 

 fine, dense silky hairs. Four species have been taken in the State, 

 while another may occur. 



KEY TO SPECIES OF GROUP P>. 



a. Antennae annulate with yellow (except in male of canadensis) . 

 1). Tips of elytra truncate and dentate. 



c. Elytra deeply truncate-emarginate at tips ; antennae of male ser- 

 rate ; black, elytra more or less red. 1957. canadensis. 

 cc. Elytra truncate at tips, those of male sometimes feebly emargi- 

 nate ; black, elytra reddish ; abdomen red, male, black, female. 



1958. RUBRICA. 



1)1). Tips of elytra nearly rounded, widely separated; black, elytra with 

 reddish or yellowish submarginal stripe, rarely wholly dull yellow 

 or wholly black. vagans. 

 aa. Antennae not annulate. 



d. Black; elytra dull yellow except at tips, which are truncate and 

 rather broadly and obliquely marked with black. 1959. proxima. 

 dd. Black; elytra black, each with four triangular yellowish spots, their 

 tips scarcely truncate. 1960. octonotata. 



1957 (6332). Leptura canadensis Oliv., Ent. 



IV, 1775, 73. 

 Elongate, rather slender, elytra tapering be- 

 hind. Black; elytra usually with a large basal 

 reddish spot, which rarely (var. erythroptera) 

 extends over the whole surface. Antennae with 

 11th joint distinctly divided ; unicolorous, male ; 

 joints 3 to 9 yellow at base, female. Thorax 

 elongate, narrowed in front, deeply constricted 

 behind; surface, as well as that of elytra, 

 coarsely and closely punctured. Length 13- 

 17 mm. (Fig. 452.) 



Several in Dury collection from La- 

 porte County, taken by G. M. Levette. 

 Probably to be found throughout the north- 

 ern third of the State. Occurs about pine 

 and hemlock. 



1958 (6333). Leptura rubrica Say, Journ. 



Phil. Acad. Nat. Sci., Ill, 1S24, 

 418; ibid. II, 197. 

 Elongate, robust. Color given in key; under surface rather densely 

 clothed with fine yellow pubescence. Antennae with 11th joint scarcely di- 



Fig. 452. (After Smith in Fifth Rep. 

 U. S. Ent. Comm.) 



