CLASSIFICATION OF THE SUBFAMILY CRYPHALIN#A, 63 
Xyleborus quercus, new species. 
Length, female type, 1.95 mm.; body oblong-elliptical, dark brown; pronotum 
with sides slightly narrowed toward base, anterior rugosities fine, closely placed, con- 
fused, median and posterior dorsal areas glabrous and shining, lateral area subopaque, 
faintly and closely punctured; front broad, convex, opaque, with faint median line; 
elytral striz obscure, interspaces faintly rugose, declivity opaque, faintly broadly 
impressed, interspace 1 flat, unarmed, 3 not elevated, armed with two or three small 
granules toward the vertex and one slightly larger toward the apex, posterior lateral 
margin serrate. Baxterville, Miss., in Quercus sp.; J. L. Webb, collector; Hopk. U.S. 
No. 5806. Type, Cat. No. 7643, U. S. National Museum. 
Xyleborus pecanis, new species. 
Length, female type, 1.95 mm.; body oblong-elliptical, dark reddish brown; pro- 
notum with sides parallel, rugosities fine, with small, shining, median elevation and 
posterior dorsal and lateral areas smooth, shining, and glabrous; front broad, subcon- 
vex, opaque, alutaceous, with distinct median line; elytrashining, with strial punc- 
tures fine, in distinct rows, interspaces smooth and shining, declivity opaque, sub- 
convex, with interspaces 1 and 3 not elevated but with row of granules, and 2 flat, 
but not impressed and without punctures, posterior lateral margins scarcely serrate. 
Waynesboro, Miss., in Hicoria pecan, received from correspondent; Hopk. U. 8. No. 
8971. Type, Cat. No. 7645, U. S. National Museum. 
Length, male, 1.55 mm.; body oblong-elliptical, light brown; pronotum subcon- 
vex, anterior area not impressed, with very fine rugosities; body sparsely clothed 
with erect hairs; front narrow, subopaque; elytra shining, faintly punctured, decliv- 
ity oblique, interspaces 1 and 3 faintly elevated, 2 faintly impressed, granules very 
Xyleborus floridensis, new species. 
Length, female type, 2.3 mm.; body oblong-elliptical, yellowish brown; pronotum 
with sides parallel, anterior rugosities fine, with faint dorsal tubercle, median and 
posterior dorsal areas subopaque, lateral area alutaceous; front subconvex, alutaceous, 
with faint median line; elytra with striz impressed on dorsal area, punctures coarse, 
interspaces smooth and shining, faintly punctured, declivity subconvex, interspaces 
i and 3 distinctly elevated, 2 impressed, with strial punctures distinct, posterior lat- 
eral margin serrate. Enterprise, Fla., May 18; Hubbard and Schwarz collection. 
Type, Cat. No. 7646, U. S. National Museum. 
Xyleborus buscki, new species. 
Length, female type, 1.95 mm.; body oblong-elliptical; elytra reddish brown, pro- 
notum darker; pronotum with sides parallel, anterior rugosities fine, dorsal elevation 
transverse, median and posterior dorsal and lateral areas smooth, subopaque; front 
moderately broad, shining, faintly punctured, with faint transverse elevation; elytra 
subopaque, striz obscure, surface faintly rugose, declivity oblique, flattened, shining, 
clothed with fine hairs in approximate rows, interspace 1 scarcely elevated, 2 flat, 
vertex and sides faintly granulate, posterior lateral margin faintly serrate. Guade- 
loupe, West Indies, July 30; August Busck, collector. Type, Cat. No. 7647, U. 8. 
National Museum. 
X. catulus Bland. (Biol. Centr.-Amer., p. 215) may be near this species. 
Xyleborus sharpae, new species. 
Length, female type, 1.4 mm.; body oblong-elliptical, light brown; pronotum 
slightly broader than elytra, median and posterior dorsal and lateral areas smooth, 
shining, rugose area short, rugosities fine; front broad, nearly flat, alutaceous, with 
median longitudinal line; elytra with strie obscure, interspaces faintly rugose, decliv- 
