' PRIONID^. 13 



3. Derobrachus sulcicornis. 



Derobrachus sulcicornis, Leconte,Journ. Acad. Nat. Se. Phil. n.s. 



ii. 110. 

 Hab. Mexico (Punto Nacional). 



4. Derobrachus Levoiturieri. B.M. 



Derobrachus Levoiturieri, Buquet, Ann. Soc. Ent. Fr. xi. 203. 



pi. 9. f. 1. 

 Hab. Columbia. 



29. DORYCERA, n. g. 



Prionus, p., Fabr. 



Antennae with the third and seven following joints vnth a 

 spine-hke prolongation on the outside at the tip ; the terminal 

 joint notched just before the tip. Thorax short as in Derobra- 

 chus, with three long spines on each side. Scutellum sUghtly 

 notched at the tip. Legs with the edges smooth. 



1. Dorycera spinicornis. pi. I. f. 1. B.M. 



Prionus spinicornis, Fabr. Ent. Syst. ii. 245. 13. 

 P. buphthalmus, p., Fabr. S. E. ii. 260. 13. 

 Hab. ? (type sp.) 



30. AULACOCERUS, n. g. 



Antenna; with the joints angulated, channelled, the third joint 

 longer than the fourth and fifth taken together ; the inner edge 

 of these joints irregularly toothed ; the third, fourth and fifth on 

 the sides at the tip somewhat excavated ; the sixth and following 

 joints with this hollowed space extending to the base, the edges 

 of the angles sharpest ; the tips of the joints fi-om the sixth to 

 the tenth somewhat hollowed out. Thorax narrow, transverse, 

 the anterior and posterior margins nearly parallel, the sides with 

 a wide tooth in the middle. Femora slightly doubly serrated 

 on the under side ; tibiae thickly doubly serrated on the under 

 side, the sides channelled ; tarsi elongate. 



1. Aulacocerus mundus, n. s. PI. L f. 2. B.M. 



Aul. capite. thorace, scutello, elytrisque basi sparsim, pectore 

 coufertim pilis aureis indutis ; elytris cinnamomeis quadri- 

 eostellis humero rugoso. 



Head brovni, grooved down the middle, punctured with a few 

 scattered golden brown silky hau-s. Thorax brown, somewhat 

 rugose, with many scattered golden brown silky hairs. Scutellum 



