CALOSPASTA.—MACROBASIS, 395 
One male and two female examples of this remarkably distinct species have been 
received from Mr. H. H. Smith. It is one of the most interesting of the Mexican 
species of Meloide. The elytra are comparatively broad and parallel, and flattened on 
the disc. The upper and under surfaces are very sparsely and finely pubescent. 
MACROBASIS. 
Macrobasis, Leconte, Class. Coll. N. Am. p. 272 (1862); Horn, Proc. Am. Phil. Soc. xiii. p. 88 
(1873). 
Apterospasta, Leconte, loc. cit. 
This genus is confined to the New World, and ranges from Canada to Guiana *, its 
headquarters being in the Southern United States and the highlands of Mexico. From 
north of Mexico fifteen species are known, five of which extend into our region, whence 
fourteen are now recorded. Of this number two only occur south of Mexico. Macrobasis, 
as Dr. Horn remarks, is only separable from Epicauta by the relatively longer second 
joint of the antenne. The males of most of the species, as in some picauta, exhibit 
_ remarkable characters in the form of the basal joints of the antenne and in the first 
joint of the anterior tarsi. MV. curvicornis (Haag) (antennalis, Dugés), and WM. labialis, 
Dugés, both from Mexico, belong to Epicauta as here understood. 
Antenne dissimilar in the two sexes: the basal joint elongated (in some 
species exceedingly so) or distorted in the male. 
Joints 2-11 more or less elongate, 2 in some species thickened and very 
long in the male. 
The basal joint (¢) much flattened, broadly and angularly dilated on 
the imner side at or beyond the middle, and emarginate between this 
and the apex rr Species 1, 2. 
The basal joint (3g) narrower, very elongate and slightly curved, more 
or less flattened, sinuate or emarginate on the inner side before 
the apex . 2. 2. 1. 1 ew we ee ww ww we) «Species 3-7. 
The basal joint ( ¢ ) very elongate and slightly curved, stout and flattened, 
or slender, unemarginate on the inner side before the apex . . . Species 8-11. 
Joints 2-11 comparatively short in both sexes, subovate, 2 only a little 
shorter than3. . . 2. 1. 1. 1 ee ee ee ee ee.) «Species 12. 
Antenne similar in the two sexes, the basal joint not or scarcely longer than 
2and3united . . 2. 2. 1. we we ee ee ee wee Species 13, 14. 
1. Macrobasis fumosa. (Tab. XVIII. figg. 15,3; 15a, antenna, ¢.) 
Lytta fumosa (Sturm), Haag, Berl. ent. Zeitschr. 1880, p. 40* (nec Germ., 1824). 
Cantharis borret, Dugés, La Naturaleza, v. p. 145, t. 4a. figg. 8, 8 af (1881)’. 
* Lytta flagellaria, Er., is a Macrobasis. 
3 EK 2 
