PYROTA. 431 
4. Pyrota rugulipennis. (Tab. XX. figg. 4, ¢; 4a, labium; 4%, maxillary 
palpus, ¢; 4¢, profile of edeagus; 4d, sixth ventral segment, ¢ .) 
Head and prothorax shining, reddish-yellow, the former on all sides (so as to enclose a large oval frontal patch), 
and the latter with an oblique patch on either side of the disc behind (the two more or less coalescent) 
and a lateral spot, black—in one specimen both are entirely reddish-yellow; the elytra opaque, yellow, 
with a large rounded spot close to the base (not reaching the suture or lateral margin) and a very broad 
post-median fascia (not extending on to the lateral margin), black; beneath black, the terminal ventral 
segments sometimes reddish-yellow ; legs reddish-yellow, the femora and tibie at their apex and the 
tarsi black; antenne black, the basal one or two joints more or less reddish-yellow; the head and 
prothorax finely and sparsely, the under surface coarsely and thickly, pubescent. Head sparsely, 
coarsely punctate, the vertex sulcate, the eyes moderately large; apical joint of the maxillary palpi 
~ narrow in both sexes, elongate-ovate, with the tip truncate, the underside not excavated in the male; 
antenne strongly setaceous, moderately stout, joint 1 as long as 2 and 3 united, 3 considerably longer 
than 4, 4-10 subequal in length, 7-11 rapidly diminishing in thickness, 11 very slender; prothorax 
slightly longer than broad, narrowing in front, sparsely, irregularly, and rather coarsely punctate, 
the disc transversely flattened before the middle, depressed in the centre at the base, and with a 
smooth median space ; elytra densely scabrous-punctate, and with four very fine raised lines; beneath 
thickly punctured; legs stout, the hind tibial spurs slender, subequal; sixth ventral segment (3) with 
an elongate-triangular depression in the middle, extending from the apex nearly to the base, the 
depression filled with membrane—( ? ) deeply arcuate-emarginate at the apex. 
Length 134-20 millim. (¢ 2.) 
Hab. Mexico, Canelas in Durango (Becker). 
Five males and one female. This species, the sexes of which are difficult to distin- 
guish, except by the form of the sixth ventral segment, may easily be known from all 
the other Mexican Pyrote by its finely rugulose, opaque elytra, the latter with a large 
rounded basal spot and a very broad, common, post-median fascia. The head and 
thorax vary in colour, the black markings being entirely obliterated in one example ; 
the apices of the elytra are yellow, the post-median fascia occupying from one-third to 
nearly one-half of their total length. 
5. Pyrota postica. (Tab. XX. fig. 5, ¢.) | 
Pyrota postica, Lec. New Sp. Col. p. 160 (1866) *; Horn, Trans. Am. Ent. Soc. xii. p. 118, t. 5. 
fig. 15°; Dugés, An. Mus. Michoacano, ii. p. 94°; Casey, Ann. N. Y. Acad. vi. p. 173°. 
Cantharis maculata (Klug), Lacord. Gen. Col., Atlas, t. 60. figg. 4, 4a, 6 (sine descr.) (nee Say) ’. 
? Pyrota maculosa (Klug), Dej. Cat. 3rd edit. p. 246°. 
Pyrota plagiata, Sturm, Cat. p. 174”. 
Lytta plagiata (Sturm), Haag, Berl. ent. Zeitschr. 1880, p. 49°. 
Hab. Nortu America, Texas and New Mexico!*.—Mextco®78 (Sallé, ex coll. 
Sturm), Monterey (Horn?), Villa Lerdo in Durango (Hége), Ahualulco in Jalisco 
(Penafiel*). 
We have received two males and four females of this species from Mexico. Of 
these, two (d) are typical, 7. ¢. with the black post-median spot large and sub- 
quadrangular (as figured by Dr. Horn 2); two (@ ) have this spot much more elongate, 
