200 HETEROMERA. 
37. Platydema breve. (Tab. VIII. fig. 28.)- 
Broad ovate, short, convex, dark reddish ferruginous, opaque. Head short, broad, dull, exceedingly finely and 
closely punctured (when seen under a strong lens), the epistoma defined posteriorly by a shallow trans- 
verse groove ; antenne rather short, stout, the four basal joints, and the outer half of the apical one, red, 
the rest black, joints 7-10 broad and transverse ; prothorax short, broad, the sides feebly rounded and 
converging from the base, the base and apex bisinuate, the anterior angles prominent and obtuse, smooth, 
reddish ferruginous, the disc more or less transversely infuscate; scutellum triangular; elytra short, 
rounded at the sides, regularly punctate-striate (the punctures coarse, shallow, and, towards the sides, 
distant one from another), the interstices smooth, brownish black, with two curved, interrupted, zigzag, 
transverse, reddish testaceous bands (one before, the other beyond the middle), the base (and scutellum), 
the suture broadly, the lateral margins, and (usually) the whole of the apex from the second band, reddish 
brown ; legs red ; beneath reddish brown, shining, finely and sparingly punctured. 
Length 43-5 millim. 
Hab. Mexico, Cordova (Sallé); Guatemata, Cubilguitz, Cahabon (Champion) ; 
PawnaMa, Bugaba (Champion). ; . : 
Seven examples. -A broad oval, short, convex species, with stout antenne; the 
head similarly formed in both sexes; dark reddish ferruginous in colour, and opaque ; 
the elytra marked much as in P. rodriquezi. 
P. breve is apparently not nearly allied to any other described species; it is appa- 
rently widely distributed. 
The specimen figured is from Cubilguitz. 
38. Platydema versicolor. (Tab. IX. fig. 3.) 
Platydema (?) versicolor, Chevr. Petites Nouv. Ent. ii. p. 194°. 
Hab. Mexico! (coll. F. Bates), Cordova (Sallé), Jalapa, Esperanza (Hoge). 
Many specimens of this pretty species were captured by Herr Hoge near Jalapa; 
one of these is figured. 
39. Platydema tricolor. (Tab. IX. fig. 4.) 
Bright reddish brown, broad ovate, convex, shining. Head sparingly but somewhat coarsely punctured ; 
prothorax sometimes indistinctly darker in the middle; elytra black, the base narrowly, a transverse 
angular band, placed a little before the middle, and extending from the lateral margins to the second dorsal 
stria, and a similar but shorter band behind the middle, yellowish testaceous, the extended lateral margins, 
the apex, and sometimes the apical half of the suture, reddish brown, regularly and deeply punctate- 
striate (the punctures comparatively rather coarse), the interstices flat and very evidently though sparingly 
punctured ; the three basal (and part of the fourth) joints of the antenne, and the outer half of the apical 
one, and the legs, red. | . 
Length 53-6 millim. 
Hab. Guatemata, San Gerénimo, Purula (Champion). 
Numerous examples. Allied to P. versicolor, but easily separated from that species 
by the unicolorous thorax and the more coarsely punctate-striate el 
ytra, the base of 
the latter being narrowly testaceous. | 
