ASIDA. 57 
impressions on each side towards the base and an indistinct central groove, rounded at the sides, narrowed 
and sinuate towards the base, the hind angles produced and overlapping the elytra, narrowed in front and 
the anterior angles somewhat prominent, base bisinuate; elytra broader than the thorax at the base, 
rather short and dilated, widest behind the middle, rounded at the sides, humeral angles obtuse, with a 
network of raised lines which enclose a series of three or four interrupted rows of shallow depressions, the 
depressions usually filled with the scale-like hairs; antennze short, stout ; outer apical angle of the anterior 
tibize with a sharp tooth. Beneath slightly shining, coarsely but not very closely punctured. 
Length 12-15 millim. 
Hab. Mexico (coll. F. Bates), Guanajuato (Sallé). 
Six examples. Labelled Ologlyptus guanajuatensis, Dugés, in the Sallé collection. 
15. Asida scutellaris. (Tab. III. fig. 9, 3.) 
Oblong oval, rather convex, black, somewhat densely clothed with ferruginous or brown scales. Head trans- 
versely impressed in front, finely punctured; prothorax broader than long, closely and rather coarsely 
punctured, rugulose, with a distinct smooth central raised line, and an indistinct oblique impression on 
each side towards the base, rounded at the sides, narrowed and sinuate behind, hind angles very promi- 
nent, produced and overlapping the elytra, narrowed in front, the anterior angles a little prominent and 
rounded, base slightly produced in the middle and almost rounded ; elytra broader than the thorax at the 
base, sides rounded, short and dilated about the middle (?) or longer and slightly widened (3), with 
three prominent rounded smooth shining ridges—the first two confluent behind, and the third not reaching 
the base, and a sharp marginal ridge confluent just before the apex with the united first and second, the 
suture raised and prominent, the intervals with matted light brown appressed scaly hairs and in the centre 
of each a more or less distinct line dividing the scales into two rows; anterior tibiee toothed at outer 
apical angle; prosternum prominent behind, scarcely declivous; scutellum with a smooth central keel. 
Beneath sparingly but rather coarsely punctured. 
Length 14-18 millim. (¢ @.) 
Hab. Mexico (coll. F. Bates), Puebla (Sallé), Almolonga, Jalapa, Oaxaca (Hége). 
16. Asida fallax. (Tab. III. fig. 8.) 
Oblong oval, rather convex, black, sparingly clothed with brown scaly hairs. Head transversely impressed in 
front; prothorax broader than long, closely and rather coarsely punctured, rugulose, with a smooth 
central raised line, rounded at the sides, narrowed in front and behind, slightly sinuate before the base, 
_ the base almost rounded in the middle, hind angles produced and overlapping the elytra; elytra broader 
than the thorax at the base, rounded at the sides, widest about the middle, humeral angles obtuse and 
raised, with three fine ridges—the first two confluent behind, the third not reaching the base, and a 
marginal ridge confluent just before the apex with the united first and second, the suture raised and pro- 
minent, the second, third, and marginal ridges sometimes connected by one or two transverse raised lines, 
the interstices with matted dark-brown scaly hairs and in the centre of each indications of a darker 
central band; anterior tibiee with a sharp spur at the outer apical angle; scutellum with a central keel. 
Beneath with coarse or fine scattered punctures, prosternum a little prominent raised and rounded 
behind. 
Length 15 millim. (¢ 2.) 
Hab. Mexico, Guanajuato, Toluca (Sallé), Mexico city (Dr. Palmer). 
Five examples. Closely allied to A. scutellaris, but with the ridges of the elytra 
much finer and less prominent &c. Labelled Asida fallax, Chev., in the Sallé 
collection. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, October 1884. II 
