104 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



Waterhouse (1889) erected the genus Engyauhis for this and a 

 closely allied species from Mexico, and which he separates from 

 Agnlus by the front being convex, the mouth consequently more in- 

 ferior, and the first joint of the posterior tarsi being short. These 

 characters are of no generic value, as there are a number of species 

 which could be placed in either genus on these characters, so I concur 

 with Horn (1891) in not retaining Engyaulus as a valid genus. 



31. AGRILUS VITTATICOLLIS (Randall) 



Figure 24 



Buprestis (Agrilus) vittaticollis Randall, Boston Journ. Nat. Hist., vol. 2, 

 1838, pp. 38-39. 



Agrilus vittati-collis (Randall) LeConte, Trans. Amer. Philos. Soc, new 

 ser., vol. 11, 1859, p. 250. — Crotch, Proc. Acad. Nat. Sci. Phila., vol. 

 25, 1873. p. 96. — Sprague and Austin, Proc. Boston Soc. Nat. Hist., 

 vol. 17, 1875, p. 376.— Schwarz. Proc. Amer. Philos. Soc, vol. 17, 1878, 

 p. 452. — Hubbard and Schwarz, Proc. Amer. Philos. Soc, vol. 17, 1S78. 

 p. 636. — Blanchard, Ent. Amer., vol. 5, 1889, p. 32. — Horn, Trans. Amer. 

 Ent. Soc. vol. 18, 1891, pp. 299-300.— Hamilton, Trans. Amer. Ent. 

 Soc, vol. 22, 1895, p. 364.— Chittenden, U. S. Dept. Agric, Div. Ent., 

 Bull. 22, new ser., 1900, p. 68.— Smith, 27th Rept. N. J. State Board 

 Agric. for 1899 (1900), suppl. p. 257.— Felt, N. Y. State Mus., Mem. 8, 

 vol. 2. 1906, p. 720.— Fall, Ent. News, vol. 17, 1906, p. 168.— Smith, 

 Ann. Rept. N. J. State Mus. for 1909 (1910), p. 295.— Blatchley, 

 Coleoptera of Indiana, 1910, p. 800.— Manee, Ent. News, vol. 24, 1913, 

 p. 170. — Brooks, U. S. Dept. Agric, Journ. Agric Research, vol. 3, . 

 1914, pp. 179-186, pis. 29-31 (life history ) .— Nicolay, Bull. Brooklyn 

 Ent. Soc, vol. 12, 1917, p. 94.— Chamberlin, Ent. News, vol. 28, 1917, 

 p. 169.— Fisher, Proc. Ent. Soc Wash., vol. 20, 1918, p. 68.— Britton, 

 Conn. State Geol. and Nat. Hist. Survey, Bull. 31, 1920, p. 245.— Knull, 

 Ent. News, vol. 31, 1920, p. 10.— Frost and Weiss, Canad. Ent., vol. 52, 

 1920, p. 207.— Frost, Canad. Ent., vol. 52, 1920, p. 26. — Mutchler and 

 Weiss, N. J. Dept. Agric, Bur. Statistics and Inspection, Circ. 48, 1922, 

 pp. 14-15. — Wellhouse, Cornell Agric Exp. Sta., Mem. 56, 1922, pp. 

 1050-1108.— Knull, Canad. Ent., vol. 54, 1922, p. 86 ; Ohio State Univ. 

 Studies, vol. 2, no. 2, 1925, pp. 43-44. — Chamberlin, Journ. N. Y. Ent. 

 Soc, vol. 32, 1925, p. 193 ; Cat. Buprestidae, 1926, pp. 85-86. 



Agrilus frenatus Dejean, Cat. Coleopt., ed. 2, 1833, p. 82 ; ed. 3, 1837, p. 93 

 (no description). — Gory, Mon. Bupr., suppl., vol. 4, 1841, pp. 239- 

 240, pi. 40, fig. 231.— LeConte, Proc. Acad. Nat. Sci. Phila., vol. 9, 1857, 

 p. 9. 



Male. — Form robust and rather strongly flattened ; head and prono- 

 turn purplish red, sometimes with an aeneous tinge, and feebly shin- 

 ing; elytra black, opaque, beneath black, with a strong purplish 

 tinge, and more shining than above. 



Head with the front rather wide, slightly wider at top than at 

 bottom, the vertex broadly concave, the occiput more deeply im- 

 pressed, the concavity extending to the lateral margins, which are 



