ASIDA. 59 
reaching the base), the suture raised and smooth, and a marginal ridge, the dorsal and marginal ridges 
confluent behind and the two outer and the marginal connected by one or two raised transverse lines, the 
interstices with densely matted dark-brown scaly hairs; anterior tibiz with outer apical angle sharply 
toothed; scutellum with a central keel; antenne short and stout. Beneath slightly shining, ventral 
segments sparingly and finely punctured ; prosternum prominent behind, rounded at apex. 
Length 18 millim. (?.) | 
Hab. Mexico (coll. F. Bates). 
One example. Closely allied to A. favosa, &c., but with the margins of the thorax 
swollen and slightly reflexed, more strongly sinuate before the base, and the hind angles 
outwardly directed. 
Of the five closely allied species here described it is not unlikely that A. similata, 
A. fallax, and A. favosa may eventually prove to be forms of one species; but 
A. scutellaris and A. laticollis seem distinct enough—the former by its thickened 
prominent elytral ridges, and the latter by its very broad transverse thorax. 
20. Asida dissimilis. (Tab. III. fig. 10, ¢.) 
Oblong oval, a little depressed above, dark reddish brown, densely clothed with brown scaly hairs. Head deeply 
impressed in front; prothorax transverse (@), or about as long as broad (¢), closely and finely punc- 
tured, rugulose, with a smooth raised central line, the disc with a rounded impression on each side near 
the middle and an oblique impression on each side at the base, rounded at the sides, narrowed and sinuate 
behind, the acute hind angles slightly overlapping the elytra, narrowed in front and the angles a little 
prominent, the lateral margins raised and slightly reflexed, base strongly bisinuate ; elytra a little wider 
than the thorax at the base, rounded at the sides and a little dilated about the middle ( @ ), subparallel 
and scarcely widening from the base (<d), humeral angles obtuse and a little raised, with three fine 
ridges—the first indistinct (sometimes obsolete) and second confluent a little beyond the middle, the third 
short, not reaching the base, enclosed by the second and a marginal ridge, the two latter confluent before 
the apex; outer apical angle of anterior tibie with a sharp tooth; legs and antenne stout, intermediate 
joints of latter subtransverse ; trochantin small. Beneath coarsely and closely punctured. 
Length 11-13 millim. (¢ 9.) 
Hab. Mexico (coll. F. Bates, Sallé). 
Five examples. This species has much the appearance of certain Ologlypti, but 
agrees better in structural characters with Asida. 
21. Asida palmeri. (Tab. III. fig. 12.) 
Oblong ovate, dark reddish brown, shining. Head closely and rather coarsely punctured, feebly impressed 
transversely in front; prothorax transverse, wider behind than in front, narrowed and sinuate behind 
just before the slightly prominent subacute outwardly directed hind angles, narrowed in front, the anterior 
angles broadly triangular and prominent, base broad nearly straight and fitting close to the elytra, lateral 
margins strongly reflexed and crenulate, disc sparingly and finely, and the base and sides coarsely punc- 
tured or rugulose; elytra a little narrowed at the base, widest about the middle, the base broad, almost 
straight, and a little wider than the thorax, with a marginal ridge [prominent at the shoulders, obsolete 
before the apex], and traces of two or three obsolete ridges, the outer only of which is at all distinct, and 
_ represented by a short raised line not reaching the base and close to and parallel with the margin, humeral 
angles raised and prominent, obtuse, the surface with scattered fine shallow impressions ; anterior tibize 
Il2 
