STELIDOTA. 3135 
variegate serial pubescence. In some respects the insect agrees with Erichson’s descrip- 
tion of S. alternans, but he says that in it the rows of sete are one light, the next dark. 
8. Stelidota alternans. 
Stelidota alternans, Er. in Germ. Zeitschr. iv. p. 303°. 
Hab. Mexico}, Jalapa (Hoge); Guatemata, Coban (Champion). 
We have not received any examples that agree thoroughly with Erichson’s description 
of S. alternans; the specimens I have seen so named do not exhibit the alternate varie- 
gation of the serial pubescence alluded to by Erichson. In our National Collection at 
South Kensington there is an example differing from anything we have received, and 
named by Murray as 8. aléernans, Er.; it is not certain, however, that this specimen is 
really from Mexico, as it purports to be. Reitter (Verh. Ver. Briinn, xii. 1, p. 14) gives 
S. alternans as a variety of 8. octomaculata (Say); but I have no doubt this is incorrect, 
S. octomaculata being a very distinct species of the S. chontalensis group with simple 
posterior tibie in the male. 
9. Stelidota bugabensis, sp. n. (Tab. X. fig. 5, 2.) 
Ovalis, minus lata, convexa, nitida, ferruginea; prothorace lateribus sat explanatis, basi utrinque parum 
sinuata; elytris tantum ad apicem sulcatis, seriatim subtiliter punctatis, longius pubescentibus. 
Long. 23 millim. 
Hab. Panama, Bugaba (Champion). 
Thorax coarsely punctured; the sides somewhat expanded but not in the least 
reflexed, their posterior third nearly straight, the hind angles rectangular. Elytra 
with the series of punctures very fine; the serial pubescence rather long, the outer 
one of each pair of the series strongly separated from the inner, so as to be nearly 
equidistant from it and the next series; the interstices shining. ‘The axillary space 
moderately large, the line bounding it remarkably coarse and distinct. 
This species seems quite distinct from any of our others, though to a considerable 
extent intermediate between S. solitaria and S. chontalensis ; it is readily distinguished 
from the former by the different serial pubescence, and from the latter by the shape of 
the thorax. We have received only one female. 
10. Stelidota 
Hab. Guatemaua, Capetillo (Champion). 
q 
A female example of a Séelidota from Capetillo agrees with S. bugabensis in many 
characters, especially in form, sculpture, and pubescence, and in the structure of the 
axillary space; but is considerably larger, and has the thorax more convex transversely 
and less expanded at the sides. 
BIOL. CENTR.-AMER., Coleopt., Vol. II. Pt. 1, March 1890. 2 S* 
