232 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



Virginia : Veitch, and Falls Church, reared ( F. C. Craighead ) . Shipinau 



(H. E. Burke). Chain Bridge, June 5 (J. C. Bridwell). 

 West Virginia: Wood and Monongahela Counties (A. D. Hopkins). 

 It has also been recorded from Onah, Manitoba ; Grimsly, Ontario, and Medicine 



Hat, Alberta. 



Variations. — This species varies in color from a uniform dark 

 civperous brown to nearly black, with the pronotum, of various shades 

 of bronzy green. The sides of the pronotum show considerable 

 variation in shape, and the length varies from 4.5 to 5.75 millimeters. 



Host. — Although the adults have been collected on various plants, 

 the larvae seem to be restricted to the dogwood (Oornus ftorida Lin- 

 naeus), as the species has been reared a number of times by different 

 workers from this host plant. 



This species resembles otiosiis Say and egenus Gory very closely, 

 but it can be distinguished from otiosus and the allied species by 

 having the tarsal claws broadly toothed and the inner tooth not 

 turned inward. It can be separated from egenus by having the 

 antennae serrate from the fourth joint, whereas in that species they 

 are serrate from the fifth joint. Agrilus ceplmlicus was suppressed 

 as a synonym of egenus by Horn (1891) without any explanation, 

 and it is entirely unwarranted. In making an examination of the 

 material in the LeConte collection, numbers 3, 5, 11, and 16 in the 

 egenus series were found to be cephalicus, of which number 11 bears 

 the label " cephalicus LeC." Chamberlin (1926) considers it a vari- 

 ety of egenus, but it is a valid species as shown by the antenna] 

 characters. 



76. AGRILUS STRIGICOLLIS Fall 



Figure 57 



Agrilus strigieollis Fall, Canad. Ent., vol. 44, 1912, pp. 41-42. — Chamberlin, 

 Cat. Buprestidae, 1926. p. 83. 



Female. — Form moderately robust, rather strongly flattened above, 

 moderately shining, and uniformly aeneous, with a distinct cupreous 

 tinge, which is slightly more pronounced on pronotum and head; 

 beneath similar to above, but slightly more shining. 



Head with the front rather wide, about equal in width at top and 

 bottom, the lateral margins nearly parallel to each other from bottom 

 to top, with a broad, deep concave depression on upper half, which 

 is connected to a shallow, transverse depression behind the epistoma 

 by a deep, longitudinal median depression, causing a round gibbosity 

 on each side below the middle ; surface coarsely, closely punctate, the 

 punctures uniting in some places and forming coarse rugae, and 

 sparsely clothed behind the epistoma with long, white hairs ; epistoma 

 slightly transverse between the antennal cavities, moderately ele- 

 vated, and broadly, deeply, arcuately emarginate in front ; antennae 



