110 Mr. Walter F. H. Blandford on the 
apex and finely tuberculate, the first having traces of tubercles 
from the middle. Underside ferruginous, thinly hairy. 
There are two forms of this species, one slightly 
shorter with the elytral striae not impressed at all on the 
declivity, which is impressed transversely, somewhat 
dull, and sub-acuminate at apex; the tubercles are finer 
than in the other form, in which the striz are impressed, 
and the apex is shining and subconvex. One specimen, 
however, appears to be intermediate, and therefore I 
do not separate them, though at first sight they appear 
specifically distinct. 
Xyleborus praevius, sp. n. 
Fem. Elongata, subcylindrica, nitida, parce pilosa, picea, 
antennis pedibusque testaceis ; prothorace paullo longiore quam 
latiore, lateribus leniter, apice fortiter rotundato et crenato, disco 
umbonato, postice sparsim distincte punctato ; elytris prothorace 
plus quam sesqui longioribus, ad apicem oblique declivibus et 
infra carinatis, declivitate utrinque subimpressa, supra subtiliter 
lineato-punctatis, interstitiis rarius uniseriatim punctatis, postice 
obsolete tuberculatis. Long. 3 mm. 
One example, without locality. 
Similar to X. aquilus, but smaller, more slender and 
with the interstices flat on the apical declivity. 
Head dull with front flattened, coarsely punctured at sides, 
with a smooth elevated area in middle, pubescence short except 
over mouth, eyes wide, not deeply emarginate, antennz testaceous. 
Prothorax a little longer than broad, its base truncate, basal 
angles obtuse, sides scarcely rounded behind, becoming gradually 
more strongly rounded to apex, which is crenate, surface elevated 
in middle, the elevation not evidently transverse, anterior half 
with rather scattered transverse asperities, becoming very fine 
over median elevation, posterior half shining, with irregular 
scattered but distinct punctures. Scutellum small, obtuse trian- 
gular, shining. Elytra as wide as base of thorax, and more than 
half as long again, humeral angles obtusely rounded, sides not 
quite parallel, slightly dilated in middle, subcireularly rounded 
and carinate at apex, surface slightly convex from base to apex, 
thence somewhat obliquely declivous, with rows of shallow 
punctures, which are not impressed, interspaces between punctures 
transversely rugose, interstices with a single row of sete, arising 
from fine tubercles on the whole of the first two, and the apice 
