HIPPOPSIS.—DORCASTA. 129 
that induced Serville to consider the Brazilian form distinct. I have not had an 
opportunity of examining specimens from so far north as Carolina, whence the types of 
H. lemniscata were obtained ; but some Texan specimens have the elytra quite as strongly 
acuminate as others from Rio de Janeiro. H. griseola (Bates) differs in the head 
being tumid behind the eyes, and H. prona in the great length of the head above, and 
the greater prolongation and obliquity of the forehead. In markings all these four are 
nearly identical ; and the slight differences of form of the elytral apexes is clearly of no 
specific value. 
SPALACOPSIS. 
Spalacopsis, Newman, Ent. p. 305 (1842) ; Lacordaire, Gen. ix. p. 704. 
_Eutheiu, Guérin, Icon. Régne An., Ins. texte, p. 247 (1829-88), nom. preeocc. 
Euthuorus, Jacquelin Duval, De la Sagra, Hist. de Cuba, vii. p. 114 (1856). 
Systene, Pascoe, Trans. Ent. Soc. ser. 2, iv. p. 264 (1857). 
Three species, undoubtedly belonging to this genus, have been described, from Brazil, 
Mexico, and the West Indies. The genus Tetraglenes of South-eastern Asia is very 
closely allied to Spatacopsis. 
1. Spalacopsis protensa. 
Euthuorus protensus, Pascoe, Ann. & Mag. Nat. Hist. ser. 4, viii. p. 278, t. 13. f. 8 (1871)". 
- Hab. Mexico1; Guatremaa, Capetillo (Champion). 
2. Spalacopsis variegata. 
Angustissima, fusiformis, pallide fusca, elytris nigro plagiatis; thorace indistincte fulvo lineato; scutello 
angusto, elongato; elytris basi depressis, postice convexis, apice divaricatis, singulis prolongatis acutis, 
dorso striato-punctatis utrinque bicostatis. 
Long. 33-5 lin. 
Hab. Guatemata, Calderas (Champion). 
A remarkable species, distinguished by its elytra being gradually dilated towards the 
middle and furcate at the apex; the black spots cover the greater part of the surface, 
except near the base, and are more or less oblong and confluent. 
DORCASTA. 
Dorcasta, Pascoe, Trans. Ent. Soc. ser. 2, iv. p. 264 (1858). 
Aigilopsis, Horn, Proc. Acad. Phil. xi. p. 571 (1860). 
Bebelis, Thomson, Syst. Céramb. p. 110 (1864) ? 
Seven species have been described of this genus, which appears to be peculiar to the 
warmer latitudes of America, one species occurring as far north as Texas. Bebelis 
(Thomson) seems from the description to be congeneric with Dorcasta, and to be closely 
allied to those species which, although somewhat different in facies, have the same form 
BIOL. CENT.-AMER., Coleopt., Vol. V., October 1880. s 
