THE LONG-HORNED WOOD-BORING BEETLES. 



1047 



cc. Elytra reddish-brown, sometimes varying to blackish ; legs of one 

 color. 1934. cinnamopteeus. 



bb. Elytra bicolored, black, with marginal and discal stripes yellow. 



TRIVITTATUS. 



aa. Third joint of antennae very little longer than fourth ; elytra black or 

 dark reddish-brown, tips obliquely emarginate and bidentate. 



1935. CYLINDRICOLLIS. 



1933 (6238). Toxotus schaumii Lee, Journ. Phil. Acad. Nat. Sci., I, 1850, 



320. 



Elongate, robust, tapering behind. Male black, finely pubescent; central 

 part of femora yellow ; female, body yellow except the tibiae, tarsi and an- 

 tenna?, which are black. Antenna? with third joint elongate, fourth shorter 

 than fifth. Thorax narrowed in front, finely and sparsely punctured, sides 

 with acute tubercle. Elytra with humeral angles prominent, surface finely 

 rugose-punctate. Length 19-25 mm. 



Crawford County; rare. May 19. 



1934 (6245). Toxotus cinnamopteeus Rand., Bost. Journ. Nat. Hist., II, 



1838, 45. 



Elongate, slender. Pale reddish or cinnamon brown, densely clothed 

 with fine, silky pubescence; head and thorax darker. Eyes large, promi- 

 nent, blackish. Antenna? about, as long as body, male ; two-thirds the length, 

 female. Thorax as in cylindrieolMs, the basal transverse impressed line 

 less strong. Length 10-13 mm. 



Southern two-thirds of State ; scarce.- May 12-June 7. Occurs 

 on the foliage and flowers of various shrubs, especially wahoo and 

 wild hydrangea. In two specimens the general color is dark red- 

 dish-brown. 



1935 (6243). Toxotus cylindricollis Say, Journ. Phil. Acad. Nat. Sci.. 



Ill, 1823, 417; ibid. II, 196. 

 Form of schaumii. Varies from dull blackish, female, to reddish-brown, 

 male, densely clothed with silky pubescence; pro- and metasterna and an- 

 tennae, at least in part, reel dish-brown ; legs and abdomen of male often 

 partly of same hue. Thorax cylindrical, wider at base, with two trans- 

 verse impressed lines, one near base, the other in front of middle, these 

 with a rather deep longitudinal groove between them ; sides swollen but not 

 tuberculate. Length 17-22 mm. 



Putnam and Crawford counties; scarce. June 27-July 10. A 

 pair were taken from hickory while mating on the former date, the 

 male being wholly reddish-brown except the elytra, tibiae and tarsi. 



T. trivittatus Say, length 15-17 mm., a member of the Transi- 

 tion life-zone, is recorded from northern Illinois. 



