OF PHILADELPHIA. 181 



Female. — Anterior angles of the thorax slightly projecting 

 an oblique, hardly elevated line, instead of the elytral spine. 



Length less than seven-twentieths of an inch. 



Found above the mouth of the Ohio. Resembles the prece- 

 ding species, but is destitute of the prominent, posterior, thoracic 

 angles so conspicuous in that insect, and the male is armed 

 with a prominent, cylindrical, obtuse spine above the tip of the 

 elytra. The specific name cornutus has been given to an in- 

 habitant of Madagascar. 



[Also a Bostriclius. — Lec] 



8. A. BASiLARis. — Black; elytra rufous at base, retuse and 

 tridentate at tip : thorax asperous before. 



Inhabits the United States. 



Apate humeralis Knoch in Melsh. Catal. 



Body black : head equal : eyes prominent, somewhat reflected : 

 antennae and palpi rufous : labrum fulvous : thorax declivous, and 

 armed with numerous short spines before; angles rounded : scutel 

 minute, orbicular ; elytra with large dense punctures which are 

 more dilated towards the tip ; a large rufous spot on the middle 

 of the base : tip [322] retuse, with a few large punctures ; lateral 

 edge tridentate : teeth triangular, acute ; sutural and terminal 

 edges elevated : wings black : beneath impunctured : tibia and 

 tarsi blackish-rufous. 



Length one-fifth of an inch. 



On the Ohio, Mississippi, Arkansa. The name hnmeralis is 

 preoccupied. 



[Belongs to Sinoxi/Ion. — Leg.] 



HYLESINUS Latr. 



H. ACULEATUS. — Varied with cinereous and fuscous; thorax 

 with three black lines; elytra aculeate. 



Inhabits Missouri. 



Anobinm maculatum ? Melsh. Catal. 



Body varied with blackish-brown and yellowish-cinereous short 

 hair : head confluently punctured ; a slightly elevated, longitudi- 

 nal, frontal line : antennae pale rufous : thorax, punctures much 

 dilated, slightly impressed ; a dilated, longitudinal, fuscous line 

 each side, and a much dilated one in the middle : elytra some- 

 what trifasciate with yellowish-cinereous; an obsolete band at 

 base ; the second beyond the middle oblique and abbreviated, 

 1824.] 



