614 FAMILY IV. SCOLYTIDJE. 



rounded, unarmed, rugosities coarser on the anterior area, becoming 

 finer and sparser to the base, which is more shining. Front flat, opaque, 

 with faint median shining line. Elytra and declivity shining, stria not 

 impressed, punctures fine, in distinct rows; interspaces smooth and ir- 

 regularly punctured; declivity steep, subconvex, interspace 3 with a few 

 minute granules, apex obtusely rounded, with slightly elevated, subacute 

 margin. Male, body short, stout, reddish-brown, clothed with long, erect 

 hairs, longer on sides. Pronotum darker, subquadrate, one-third broader 

 than long, flattened, opaque, alutaceous, scarcely rugose. Head small, 

 front broader than long, opaque, with faint posterior elevation. Elytra 

 globular, dorsal area broadly rounded from base to apex; declivity convex, 

 broadly rounded from vertex to apex, which is narrowed and retuse, "its 

 posterior lateral margin not elevated; striae in approximate rows but con- 

 fused on declivity, which is without granules. Length, female, 2.4 mm.; 

 male, 1.85 mm. 



Rosslyn, Ya., in Litidcra sp. ; May 8. Male reared at Wash- 

 ington, I>. C., Sept 30. 



979 ( ). AMUROSIODMUS LECONTEI Hopkins. 1915-a, 56. 



Elliptical, dark, reddish-brown. Pronotum lighter, broader than long, 

 posterior dorsal area subopaque, lateral area shining, becoming smoother 

 and punctured toward posterior angle. Front subopaque, rugosely punc- 

 tured and with median shining line. Elytral strife with coarse and 

 rather deep punctures; interspaces narrow and irregularly punctured; de- 

 clivity convex, faintly impressed to middle, interspace 2 armed with two 

 acute denticles, 3 to 6 granulate, apex obtusely rounded, posterior and 

 lateral margins faintly elevated, smooth. Length, female, 2.85 mm. 



Keene, Fla. (Hu~bl)ar<l & Rclnrarz) \ Hanlover, Fla., March 10. 



980 (9103). AMBROSIODMUS TACHYGRAPHUS Zimm., 1868, 144. 



Brown, antennae and feet ferruginous-yellow. Prothorax not longer 

 than wide, thinly pubescent, its front obtusely rounded, nearly flat, sur- 

 face finely rugose to base, the posterior lateral area smooth, shining and 

 punctured. Elytral punctures not deep or very distinct, declivity moderately 

 steep, convex; interspace 1 faintly retuse, nearly smooth, 3 armed with 

 two or three denticles, 4 to 6 roughened with granules. Male, body short, 

 stout, light brown. Pronotum much broader than long, flattened, sides 

 strongly rounded, apical margin faintly retuse, surface shining and very 

 faintly rugose, except toward base which is opaque and with a median 

 marginal obtuse elevation. Elytra globular, broadly rounded from base to 

 apex, strial punctures fine and in faint rows from base to anterior area 

 of declivity; posterior area somewhat flattened, faintly granulate. Male 

 reared Sept. 30 by H. F. Wilson in Betula sp. Length, female, 2 mm.; 

 male, 1.95 mm. 



Dunedin. Fla., rare; April 1. Described from North Caro- 

 lina. District of Columbia, boring in Acer dasycarpum and 

 other trees on shore of river. Recorded from Pennsylvania, New 

 York, Middle and Southern States. Food plants, Liriodendron , 

 Acer, Fagiis, Ccrcls and Rhus. 



