430 HETEROMERA. 
the femora and tibie are yellow, except at the tip. The Villa Lerdo examples agree 
with Casey’s description ® of P. concinna as regards the elytral sculpture, but they have 
the third and fourth joints of the antenne subequal in length (the third not shorter 
than the fourth in the male). Those from Monterey have the elytra duller and more 
densely punctured beyond the middle. The colour of the basal joint of the antenne 
is variable. The apical joint of the maxillary palpi in the male is moderately stout, 
obliquely-pyriform. | 
2. Pyrota punctata, (Tab. XX. fig. 2, ¢.) 
Pyrota punctata, Casey, Aun. N. York Acad. vi. p. 173°. 
Hab. Norra Amurica, Western Texas 1.— Mexico, San Pedro in Coahuila (Dr. 
Palmer), Villa Lerdo in Durango ({ége). 
This species closely resembles the true P. myladrina, but differs constantly in the 
elytral markings: the spot at the apex is in the form of a narrow transverse] y-lunate 
fascia, which does not reach the apical, sutural, or lateral margins, this spot being very 
rarely obsolete ; the post-median fascia is formed by two oblong, more or less coalescent, 
spots, the inner one extending forwards; the two basal spots are oblong, the outer one 
narrow and extending downwards. P. punctata also differs from P. mylabrina in its 
much larger eyes, and in the sparser and more distinct punctuation of the elytra. 
P. terminata has three broad black fasciz (the anterior two not reaching the suture), 
and the elytra are more distinctly punctured. The apical joint of the maxillary palpi 
in the male is moderately stout, obliquely-pyriform, Found in plenty by Herr Hoge 
at Villa Lerdo. 
3. Pyrota mylabrina. (Tab. XX. fig. 3, ¢.) 
Pyrota mylabrina, Chevr. Col. Mex., Cent. i. fase. ill, no. 53 (1834) (nec Lec. and Horn) *; Dugés, 
An. Mus. Michoacano, ii. p. 95 (pars) *. 
Hab. Mexico, San Pedro in Coahuila (Dr. Palmer), Tuspan 1? (Sai/é). 
We have received nine examples of this species—six from Coahuila and three from 
Tuspan; and others are contained in Mr. F. Bates’s collection. 
P. mylabrina, Chevr., to judge from the specimens before me, varies but little in 
elytral markings; it may always be known from the allied forms, P. terminata, Lec., 
and P. punctata, Casey, by its much smaller, more transverse eyes. The apical joint 
of the maxillary palpi in the male is very stout, obliquely-pyriform. The elytra have 
two spots at the base (the inner one rounded, the outer one narrow and oblong), a 
transverse moderately large spot or fascia at the middle (not reaching the sutural or 
lateral margins), and the apex rather broadly black, the apical fascia excised in the 
middle in front. The allied P. engelmanni, Lec., from Texas, &c., has a broader 
median and a narrower apical fascia, and the underside and legs black. 
