376 RHYNCHOPHORA. 
One pair. The broadly excavate elytra and the interruptedly reticulate arrangement 
of the vestiture readily distinguish Jf. excavatus. The rostrum is very differently 
formed in the two sexes, it being abruptly smooth and slender from the thickened 
basal portion in the female. ‘The markings at the base of the elytra form a common 
irregular angulated fascia. 
23. Madarus fusiformis, sp.n. (Tab. XIX. figg. 9, 9a, 3.) 
Subfusiform, shining, nigro-sneous, the antennal scape and the tips of the tarsi ferruginous; the prothorax 
with a broad space along the sides, and the elytra with an irregular fascia at the base, an angulate, 
narrower fascia beyond the middle, and several small scattered spots, clothed with oblong ochreous 
scales; the rugose portions of the under surface also set with similar scaies. Head closely punctate, 
transversely depressed between the eyes; rostrum stout, arcuate, about as long as the head and 
prothorax, closely, rugosely punctate, the antenne inserted near the middle, joints 3-7 of the funiculus 
rapidly widening outwards, 7 as wide as the club. Prothorax broad, transverse, rounded at the sides 
anteriorly, constricted in front; closely punctate, rugose at the sides. Elytra triangular, not wider 
than the prothorax, slightly depressed at the base; narrowly striate, the interstices roughly uniseriate- 
punctate. Pygidium large, prominent. Beneath rugosely punctate, except along the broad, shining, 
sparsely punctate, bare median space; first ventral segment depressed down the centre. Prosternum 
abruptly sloping from the wide, flattened, intercoxal space, bifoveate in front. Legs rugose; femora 
sublinear, unarmed; anterior tarsi slightly dilated and hairy. 
Length 41, breadth 17 millim. (<¢.) 
Hab. Mexico, Chilpancingo in Guerrero (£6ge). 
One male. Not unlike MW. excavatus ; the elytra more rapidly narrowed from the 
base, simply flattened on the disc, and with the rather coarse vestiture differently 
arranged; the rostrum much shorter; the prothorax more closely punctate; the 
femora unarmed; the pygidium larger and more prominent. 
24, Madarus bisulcatus, sp.n. (Tab. XIX. figg. 10, 10a, 2.) 
Oblong, subcuneiform, very shining, nigro-piceous; the elytra with a few narrow, hair-like, white scales, 
which are condensed into faint spots at the base, a short streak behind the scutellum, and a curved 
median fascia ; the under surface with scattered smaller white scales along the sides, the scales clustered 
into a short streak on the metathoracic episterna. Head sparsely, minutely punctate, transversely 
grooved between the eyes; rostrum strongly arcuate, about as long as the head and prothorax, thickened 
and compressed towards the base, the basal portion rather coarsely punctate laterally, for the rest almost 
smooth, the antenne inserted behind the middle. Prothorax transverse, rounded at the sides anteriorly, 
strongly constricted and tubulate in front; almost smooth, the flanks faintly aciculate. Scutellum 
triangular, small. LElytra subcuneiform, blunt at the tip, transversely depressed anteriorly ; obsoletely 
striate, the stri scarcely traceable on the inner part of the disc, the first becoming sharply defined 
beyond the middle, the interstices smooth and flat, the third raised at its point of termination. 
Pygidium small, transverse, subvertical. Meso- and metasternum and first ventral segment rather 
coarsely punctate at the sides, the rest of the under surface almost smooth. Prosternum with two 
narrow sulci, the intercoxal portion about as wide as the coxe and hollowed anteriorly. Anterior 
_ femora dentate, the others shallowly suleate. . 
Length 4-42, breadth 14-2 millim. ( 9.) 
Hab, GvatemaLA, Senahu and Cahabon in Alta Vera Paz (Champion). 
