OXACIS. po 
Posterior femora slender and similar in both sexes. 
Tarsi with the penultimate joint only tomentose beneath. 
Eyes coarsely granulated, usually large. 
Claws toothed or angularly dilated at the base; last joint of the 
maxillary palpi subcultriform, or with the apical and inner 
sides about equalin length ... . ioe +. o Spectres 6-9. 
Claws simple or at most feebly dilated at the bane 
Last joint of the maxillary palpi more or less subcultriform 
and with the apical side usually the longest . . . Species 10-22. 
Last joint of the maxillary palpi more triangular and with the 
apical side not longer than the inner side . . . . Species 23, 24. 
Eyes finely granulated, small; last joint of the maxillary palpi sub- 
triangular. . . . eee wg ee ig oe ade ie I PCCLER Bos 
Tarsi with the joints. preceding the Jannltivoate one tomentose beneath ; 
eyes coarsely granulated; claws simple . . . . . . . . « . Species 26. 
1. Oxacis femoralis. (Tab. VII. fig. 8, 3.) 
Elongate, opaque, thickly clothed with short ashy pubescence ; testaceous or pallid tosticdi, the prothorax 
with a median stripe, and sometimes the sides very narrowly at the middle, and the elytra with a narrow 
stripe near the suture and a broader one at the sides, confluent just before the apex, brownish or piceous. 
Head closely and finely punctured, the eyes and the tips of the mandibles black; antenne testaceous, the 
eleventh joint scarcely emarginate; prothorax longer than broad, the sides strongly rounded anteriorly 
and gradually converging behind, the disc depressed in the middle before the base and with a large shallow 
depression on either side anteriorly, the surface densely and finely punctured ; elytra subparallel, finely, 
densely, and shallowly punctured, and sometimes with traces of one or two raised lines on the dise, the 
apices very obtuse ; beneath densely and finely punctured, testaceous, the last three ventral segments and 
the metasternum sometimes stained with piceous; legs testaceous, the claws angularly dilated at the base. 
3. Posterior femora strongly incrassate ; the posterior tibis stout, a little curved, and with the inner apical 
angle produced into a blunt tooth. 
Length 7-93 millim. (¢ 9.) 
Hab. Mexico, Juquila (Sallé), Morelia in Michoacan (Hdge). 
Five examples, including both sexes from each locality. This and the following 
species may be known from all others of the genus by the much thickened posterior 
femora of the male. The female of O. femoralis closely resembles O. /ucana (Lec.), but 
differs in the more finely punctured thorax, more parallel shape, and less sharply toothed 
claws. O. femoralis is apparently confined to inland localities. Labelled dnanca 
variabilis, Chevr., in the Sallé collection, 
2. Oxacis podagrica. 
Elongate, subopaque, thickly clothed with short ashy pubescence; pallid testaceous, the prothorax with a 
“median stripe, and the elytra with a narrow stripe near the suture and another at the sides, confluent 
‘before the apex, brownish or fuscous. Head closely and finely punctured, the eyes and the tips of the 
mandibles black ; antenne testaceous; prothorax longer than broad, the sides strongly rounded anteriorly 
and gradually converging behind, the disc depressed in the middle before the base and with a large shallow 
- depression on either side anteriorly, the surface closely and rather coarsely punctured ; elytra broadest, 
just below the base and thence very gradually narrowing to the apex, the apices very obtuse, closely and 
