124 HETEROMERA. 
1. Pedoneces lugubris. 
Tessaromma lugubris, Boh. Res. Eugen., Zool. i. p. 91, t. i. figg. 5, a-f?. 
Hab. Panama }. 
Unknown to me. 
BLAPSTINUS. 
Blapstinus, Latreille, Régne Anim. 2nd edit. v. p. 21 (1829); G. R. Waterhouse, Ann. Nat. Hist. 
XV. p. 34 (1845); Lacord. Gen. Col. v. p. 250; Muls. & Rey, Ann. Soc. Imp. Agric. de 
Lyon, 1859, p. 180 (part.) ; Lec. Class. Col. N. A. p. 227; Horn, Rev. Ten. N. A. p. 351; 
Lec. & Horn, Class. Col. N. A. p. 879. 
Heteropus, Castelnau, Hist. Nat. Col. i. pt. 1, p. 221. 
Aspidius, Muls. & Rey, loc. cit. p. 187. 
Species of Blapstinus are found throughout temperate and tropical America, the 
genus ranging from Canada to the Argentine Republic and Chili; one or two species 
are also found in the Antilles. Dr. Horn (loc. cit.) records fourteen species from the 
United States and Canada. Of the twenty-four species included under this genus in 
the Munich catalogue not one is given from our country. Blapstinus is well represented 
in Central America by upwards of twenty species, the majority of which are here 
described as new. The headquarters of the genus appear to be in Central America 
and the region adjacent to our northern boundary. Various species, mostly undescribed, 
are known from South America. 
The males of some of the species have the anterior tibie slightly curved, and swollen 
in the middle or towards the apex; the metasternum and the ventral surface (the first 
and second and the base of the third segments) longitudinally excavate, and the last 
ventral segment flattened in the middle. 
The South American genus Lodinus, formed by Mulsant and Rey upon a species from 
Buenos Ayres and Chili, is scarcely separable from Blapstinus. 
The different species are found beneath stones in open places, also upon the sandy 
banks of rivers and streams; they are sometimes to be seen running on the ground in 
sunny weather, and are also to be found by beating low herbage. 
* Winged Species. 
a. Klytra regularly punctate-striate. 
1. Blapstinus mexicanus. 
Opatrinus mexicanus, Sturm, in litt. 
Oblong ovate, convex, dark reddish brown, shining, very sparingly clothed with scattered brownish recumbent 
hairs. Head closely and coarsely punctured, the epistoma broadly but not deeply emarginate ; prothorax 
convex, transverse, the sides rounded, widest about or a little behind the middle, slightly narrower in 
front than at the base, the angles not very prominent, hind angles obtuse, the base bisinuate, closely and 
rather coarsely punctured, the punctures more or less confluent towards the sides, separate on the disc, 
with an indistinct central groove; scutellum finely and closely punctured; elytra convex, regularly 
