72 BULLETIN" 14 5, UNITED STATES NATIONAL MUSEUM 



Also recorded from: 



Connecticut : Meriden. 



Florida (probably an error). 



Indiana. 



Long Island : Wyandanch. 



Maine : Paris. 



Missouri. 



New Jersey. 



Variations. — Rather uniform in size and coloration, although 

 some examples are slightly more purplish above, the prehumeral 

 carinae are somewhat variable in distinctness, and in some exam- 

 ples the scutellum is feebly carinate, whereas in others the carina 

 is entirely absent. 



Hosts. — Adults have been collected on hazel {Corylus americana 

 Walter and 6. rostrata Aiton) and they probably girdle the twigs 

 and small limbs of these plants similar to that of the other forms 

 of this species, although it has not been reared from this host. It 

 has been recorded as making galls on hazel, but these records are 

 from erroneously identified examples, as these galls are made by the 

 larvae of AgriVas politus subspecies pseudocoiyli Fisher. 



This subspecies can be separated from arcuatus by their smaller 

 size, and uniform aeneous or cupreous color in both sexes. They 

 resemble very closely the small forms of politus but can be separated 

 from that species by the form of the claws. 



20. AGRILUS CRINICORNIS Horn 



Figure 14 



Agrilus crinicornis Horn, Trans. Amer. Ent. Soc, vol. 18, 1891, p. 294. — ■ 

 Blatchley, Coleoptera of Indiana, 1910, p. 798. — Kwiat, Ent. News, 

 vol. 26, 1915, p. 237.— Frost, Canad. Ent., vol. 47, 1915, p. 144.— Weiss, 

 Ent. News, vol. 26, 1915, p. 101. — Frost and Welss ? Canad. Ent., vol. 52, 

 1920, p. 206.— Frost, Canad. Ent., vol. 52, 1920, p. 28.— Knull, Canad. 

 Ent., vol. 54, 1922, p. 84. — Mutchler and Weiss, N. J. Dept. Agric, 

 Bur. Statistics and Inspection, Circ. 48, 1922, p. 15. — Kntjli,, Obio State 

 Univ. Studies, vol. 2, no. 2, 1925, p. 42, pi. 1, fig. 10. — Chamberlin, 

 Cat. Buprestidae, 1926, p. 58. 



Male. — Form slender, more or less linear, and moderately shining ; 

 head greenish blue, becoming aeneous on the occiput; pronotum 

 bronzy brown at middle, becoming bronzy green toward the sides; 

 elytra black, with a feeble bronzy or greenish reflection; beneath 

 black, with a feeble bronzy tinge, and becoming more greenish on 

 the legs. 



Head with the front wide, nearly flat, equal in width at top and 

 bottom, the lateral margins nearly parallel to each other, and with 

 an obsolete longitudinal, median depression; surface densely, finely 



