562 . HETEROMERA. 
** First joint of the hind tarsi elongate, unemarginate at t the apex. 
+ Vertex sharply tuberculate in the middle in the male, obsoletely so in the female. 
4, Rhipidophorus tuberculatus. (Tab. XVI. figg. 22, 4; 22a, ‘hind tarsus.) 
Black, finely and thickly pubescent ; the elytra yellow; the abdomen reddish-yellow, in one specimen of the 
male with a piceous median dorsal stripe and the apical segments slightly infuscate, in' the female with 
the apical dorsal segment piceous ; the antenne in the male sordid yellow, in the female reddish-testaceous, 
the tips of the rami darker in both sexes; the legs reddish-yellow, all the femora suffused with piceous 
towards the base. Head finely and thickly punctured, more sparsely so in the female, the front flattened ; 
the vertex with a very stout, strongly raised, blunt tubercle in the middle in the male, and a much shorter 
and more angular elevation in the female; antenn very short in the female, the rami in this sex com- 
paratively short and about equal in iubth— in the male very long and moderately stout ; prothorax in 
the male densely and finely punctured, with an interrupted smooth. central line—in the female more 
sparsely punctate, with a narrow space on either side of the disc about the middle and a spot behind this 
near the base smooth ; elytra shining, finely and thickly punctured at the base, almost smooth behind ; 
abdomen above and beneath closely and finely punctured ; tibize moderately compressed ;. the first joint of 
the hind tarsi elongate, a little longer than the others united, moderately stout, the second and third 
joints very short; wings slightly smoky beyond the middle, the costa piceous. 
Length 43-5 millim. (¢ 2.) res 
Hab. Mexico, Atoyac in Vera Cruz (Schumann). 
One female and two male examples. This species differs from all the others here 
described by the strongly raised, very stout, blunt tubercle on the vertex in the male 
sex, this tubercle being replaced in the female by an angular elevation. ‘The abdomen 
is thickly and finely punctured. The angular elevation on the vertex of the female 
will easily distinguish 2. tuberculatus from the same sex of the closely allied 2. simplex ; 
the latter, moreover, has an angular prominence beneath the point of insertion of 
each antenna, of which there is no trace in &, tuberculatus. 
5. Rhipidophorus niger. (Tab. XVI. fig. 23, 3.) 
Myodites niger, Waterh. Cist. Ent. i. p. 369°. 
3. Broad, black, finely pubescent ; the elytra piceous, with a broad and rather oblique interrupted: fascia a 
little before the middle, and the apex narrowly, testaceous; the abdomen above with the two basal 
segments in great part piceous, the broad membranous portion between the first and second and second 
and third segments yellow, and the following segments black—beneath flavo-testaceous, with the sides 
only of each segment (the first excepted) black; the antenne- brown, with the rami sordid yellow; the 
anterior legs testaceous, the two hinder pairs with the femora and the outer half of the tibie pitchy- 
black, for the rest testaceous. Head densely and rugulosely punctured ; the vertex with a sharply raised 
compressed tubercle in the middle and some erect hairs ; antenne with the rami very long and moderately 
stout ; prothorax densely, finely, and shallowly pan etined, an interrupted median line, an irregular space 
on either side of it about the middle, and a much smaller one near the base, smooth ; elytra shining, with 
scattered shallow fine punctures, the base more closely and coarsely punctate ; sidetien above and beneath 
closely punctured, the first two dorsal segments smooth, except at the sides, the following dorsal segments 
with irregular smooth spaces in the middle or on either side of it; the four hinder tibie bowed inwards, 
widening outwardly, and compressed ; the first joint of the hind tarsi elongate, as long as the others united, 
compressed, moderately stout; wings hyaline, with a smoky fascia towards the apex, the costa Biepne. 
Length 5} millim. ae es 
