ACANTHOMADARUS.—LOBODERES. 385 
with the swollen subapical lateral portion produced into a stout tuberculiform 
prominence. It is hardly likely that the insects from these two localities belong to 
different species, and they are therefore treated as sexes of one, that from Bugaba 
being regarded as the type. 
LOBODERES. 
Loboderes, Schonherr, Gen. Cure. ili. p. 796 (1836) ; Lacordaire, Gen. Col. vil. p. 228. 
Epilobaspis, Chevrolat, Ann. Soc. Ent. Fr. (5) vii. p. 101 (1877). 
Schénherr included two species in this Tropical-American genus, and it is probable 
that various others are contained in collections, in addition to the three now added. 
The typical forms have the entire under surface densely flavo-squamose, and the 
antenne of the male remarkably formed *. Lacordaire placed Loboderes amongst the 
‘“‘ Eurhinides,” but they are obviously nearly related to M/adarus, from which they differ 
in their shorter and stouter rostrum, peculiarly formed male antenne, and narrower 
form. The basal process of the prosternum is largely developed, covering the 
mesosternum, and it is on the same plane as the metasternum. 
1. Loboderes flavicornis. (Jab. XIX. figg. 17, 17a, b, ¢ ; 18, @.) 
Loboderes flavicornis, Boh. in Schénh. Gen. Cure. iii. p. 798(3)'; vil. 1, p. 274 (fb 2)? 3 Lacord. 
Gen. Col. vii. p. 223, nota’. 
g. Antenne testaceous or rufo-testaceous, scape alutaceous and broadly dilated from near the base to the 
apex, joints 2-7 of the funiculus very short, widened, perfoliate, and closely setose, club oblong-ovate, 
flattened, strongly articulated, blunt at the tip (fig. 17 6). 
©. Antenne piceous or black, club oblong-ovate (fig. 18). 
Hab. Mexico, Vera Cruz? (coll. Solari); Brivis: Honpvras, Belize (Blancaneauz) ; 
GuatemaLa, Livingston (Schwarz and Barber, in UWS. Nat. Mus.), Cahabon in Vera 
Paz (Champion); Nicaragua, Chontales (Lelt); Panama, Bugaba, Caldera (Champion). 
—Braziu 173, 
Found in numbers at Cahabon and Bugaba. The male of this insect is easily 
recognizable by the extraordinary structure of the antenne. The entire under surface 
is densely flavo-squamose in both sexes. 
2. Loboderes sulphureiventris, sp.n. (Tab. XIX. figg. 19,194, 6, 3.) 
Oblong, subfusiform, robust, glossy-black ; glabrous above, beneath (a space down the middle of the meta- 
sternum and abdomen, and the second ventral segment, excepted) densely clothed with small sulphur- 
yellow scales. Head finely punctate, transversely depressed between the eyes; rostrum very stout, 
curved, not longer than the prothorax, striate and closely punctate, the antenn inserted near the tip in 
the g¢. Prothorax conical, as long as broad, closely, finely punctate. LElytra oblong-subtriangular, 
finely lineato-punctate, striate along the suture and at the sides, the interstices flat, sparsely, very 
* The Brazilian genus Loboderinus, Solari, the type of which, Z. clavatus, has an abnormally formed 
antennal club in the ¢ and the entire under surface densely flavo-squamose, does not seem to me to belong 
to this section, the basal process of the prosternum being less developed, the scutellum large, free, and 
squamose, the tarsi slender and with narrowly lobed third joint, &e. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, November 1908. 3DD 
