HETEROMERA. © 569 
the middle of the elytra, joint 3 much longer than 4; prothorax convex, strongly transverse, wider at 
the base than at the apex, the sides almost parallel from the middle to the base, rounded in front, the 
base very feebly sinuate on either side, the hind angles obtuse, the surface very densely, finely punctate ; 
elytra comparatively short, much wider than the prothorax, rapidly widening to a little beyond the middle 
and abruptly narrowed behind, faintly striate at the apex only, the entire surface confusedly, thickly, 
finely punctate (in certain positions the usual rows can be distinguished, though the punctures of the 
interstices are not finer than those of the series); beneath rather dull, coarsely pubescent, coarsely and 
closely, the ventral surface more finely, punctate; legs comparatively slender, pitchy-brown, the tarsi 
rufo-testaceous ; body apparently apterous, 
Length 7-74, breadth 34-3? millim. ( 2.) 
Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith). 
Three examples, all females. Allied to P. chevrolati and P. lapidicola; but less 
elongate, the antenne slender, the thorax more transverse and more finely punctured, 
the elytra shorter, more finely and more confusedly punctured, the pubescence a little 
shorter and less erect, the legs not nearly so stout. Compared with the other species 
of the genus, P. hirtus is less elongate and has more slender antenne. 
CISTELA (p. 451). 
9 (a). Cistela ovipennis. (Tab. XXIII. fig. 19, ¢.) 
d. Ovate, pitchy-brown, the head paler, the upper surface dull, finely pubescent. Head closely, finely punc- 
tate, the eyes moderately large, rather widely separated; antenne piceous or pitchy-brown, rufo- 
testaceous at the base, extending to far beyond the middle of the elytra, joints 2 and 3 very short, sub- 
equal in length, 4-11 rather broadly flattened and serrate, much longer than broad ; prothorax trans- 
verse, moderately convex, the sides rapidly converging from about the basal third, parallel behind, the 
hind angles obtusely rectangular, the base bisinuate, the surface very densely, finely, shallowly punctured ; 
elytra ovate, moderately long, widest before the middle, finely and rather deeply punctate-striate, the 
punctures very closely placed, the interstices almost flat, thickly, minutely punctate ; legs rufo-testaceous, 
the femora and tibie sometimes darker ; anterior and intermediate tarsi slightly dilated, the first joint of 
the anterior pair rather broadly so. 
Length 5, breadth 23 millim. 
Hab. Mexico, Dos Arroyos in Guerrero 1000 feet (H. H. Smith). 
Two examples, both males. This small Cistela is of a more regularly ovate shape 
than any of the other Mexican species here described. 
ISOMIRA (p. 457). 
Isomira subznea (p. 458). 
The locality for this species is incorrectly given as “ Mexico”: it should be 
‘¢ GUATEMALA.” 
Isomira —— ? (p. 459). 
A second specimen has been received of this insect, from Chilpancingo, which is 
perhaps only a large form of J. brevicollis, described from a single example. 
