66 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



and broadly, arcuately emarginate in front; prosternal process 

 broad, the sides nearly parallel to behind the coxal cavities, then 

 obliquely narrowed to the apex, which is acute. Tibiae slender, and 

 the anterior and middle pairs armed with a very short tooth on 

 inner margin at apex. Posterior tarsi slightly shorter than tibiae, 

 and the first joint as long as the following three joints united. Tar- 

 sal claws similar on all feet, cleft near the middle, the inner teeth 

 turned inward and their apices touching. 



Length, 7.5 mm. ; width, 2 mm. 



Male. — Differs from the female in having the front of head flatter, 

 bluish green on the front, and becoming slightly cupreous on the 

 occiput; antenna extending beyond middle of pronotum, and the 

 outer joints slightly longer than wide; eyes more broadly oblong; 

 pronotum bronzy green, becoming more or less aeneo-cupreous at 

 the middle; beneath bronzy green, with the prosternum densely, 

 coarsely punctured, and rather densely clothed with long, erect hairs 

 at the middle, the first abdominal segment feebly flattened at middle, 

 and the anterior and middle tibiae armed with a long, distinct tooth 

 on inner margin at apex. • 



Redescribed from a female reared from twigs of white oak 

 {Quercus alba Linnaeus) at French Creek, W. Va., by F. E. Brooks. 

 This specimen agrees very well with the female type of obliquus 

 LeConte and also with Say's description of arcuatus. Since the 

 type of arcuatus is lost, and from the description seems to be identical 

 with the species described by LeConte as obliquus, it is advisable to 

 consider the type of obliquus as typical of arcuatus. LeConte (1859) 

 evidently did not know the species described by Say as arcuatus, for 

 in describing obliquus, fulgens, and torquatus he compared them 

 with a specimen from the Southern States, which he had identified as 

 arcuatus but which proved to be cwpricollis Gory. 



Type locality. — Of arcuatus, not given — type lost. Of obliquus, 

 Eagle Harbor, Lake Superior; type {arcuatus No. 10) in Museum 

 of Comparative Zoology at Cambridge, Mass. 



DISTRIBUTION 



Material examined : 



Connecticut: Lyme, June 13-July 20 (Fisher). 



District of Columbia : Rock Creek Park, May 20, 1907 (Burden). Washington, 



June 23-July 4 (Hubbard and Schwarz). 



Illinois: Edgebrook, July 1, 1915 ( ). 



Iowa: McGregor, June 30, 1914 (Stoner). 



Kentucky: Frankfort, June 9, 1889 (Soltau). 



Maryland: Odenton, June 20-July 12; Plummer Island, July 5, August 16 



(McAtee). Bladensburg, June 17, 1919 (Buchanan). Myersville, July 15, 



1915 (Parker). 

 Massachusetts: Ashland, June, 1914 ( ). Melrose (Dodge). Marion, July 



( )• 



