AMPLIPALPA.—ALURNUS. 5 
This species is very closely allied to §. attenuata, but is separated by its smaller size, 
more robust and shorter antenns, and (in the male) by the less deeply concave apex of 
the anal segment of the abdomen. 
_ ~AMPLIPALPA. 
Amplipatpa v. Harold, Col. Heft. xiii. 1875, p. 185. ew~ ae 
a Gdiopalpa, Baly, Cat. Hispide, p. 16. 
All the species of this genus have the joints of the palpi more or less compressed and 
dilated. One species only is known as yet from Central America, the rest occurring in 
various localities in South America from Colombia to Brazil. 
1. Amplipalpa guerini. (Tab. I. fig. 3.) 
Amplipalpa guerinii, Baly, loc. cit. p. 20°. egg 
Hab. Mexico, Putla, Playa Vicente (Sallé); Panama (Boucard), Bugaba (Champion), 
Matachin (Thidme).—Cotomsra!, Bogota (coll. Baly, type); Upper Amazons (Bates). 
This insect, although having an extensive range, and apparently not uncommon, 
appears to have been but very rarely met with by Mr. Champion, only two specimens, 
from the State of Panama, having been sent by him. 
ALURNUS. 
Alurnus, Fabricius, Ent. Syst. ii. p. 51, no. 54. 
The species of Alurnus are all large and conspicuous insects, with the exception of 
A. marginatus, the coloration of each (within certain limits) tolerably constant; the 
range of the genus is from Mexico to Southern Brazil. Mr. Champion tells me that 
these insects are found upon the broad-leaved Musaceze in the virgin forest of the low 
country. 
Y . 1, Alurnus ornatus. (Tab. I. fig. 4.) 
Alurnus ornatus, Baly, Trans. Ent. Soc. 1869, p. 87 *. 
Hab. Nicaraava!, Chontales (Janson, Belt, Sallé) ; Costa Rica (Van Patten). 
9. Alurnus salvini. (Tab. I. fig. 5.) 
Anguste oblongus, niger, nitidus; elytris flavis, utrinque apice maculisque tribus, 2-1 dispositis, nigris. 
Var, A. Elytris flavis, apice externo nigro. (Tab. I. fig. 6.) 
Long. 7-9 lin. 
Hab. Costa Rica (Sallé); Panama, Chiriqui (Ribbe), Bugaba (Champion). 
Vertex and front rugose-punctate, medial line impressed with a longitudinal groove. 
Antenne half the length of the body, third joint twice the length of the basal two 
united. ‘Thorax broader at the base than long; sides converging from base to apex, 
obtusely angulate ; upper surface convex, finely punctured, the puncturing crowded on 
