154 -  RHYNCHOPHORA. 
the middle; vertex subopaque. Prothorax transverse, with the sides slightly rounded to anterior third, 
then broadly and uniformly rounded with the apex; surface convex, very shining, with regular fine 
sparse punctuation, median smooth line indistinct, not elevated ; flanks foveolate. Scutellum transverse, 
impressed. Elytra subelliptic, obtusely rounded behind; with punctured strie, interstices dull, sub- 
sericeous, multipunctate, with transverse elevations, small and close at base, uniseriate and more remote 
about middle, obsolete towards apex, especially on the second interstice. 
Length 7-S8°5 millim. 
Hab. Nicaracua, Chontales (Janson).—Brazit, Rio Janeiro }, New Friburg !. 
This species is quite easily distinguished, by the smooth shining prothorax, foveolate 
flanks, and remote eyes, from any other at present known. 
6. Phleoborus punctato-rugosus. 
Phlewoborus punctato-rugosus, Chap. Syn. Scol. p. 14 (Mém. Soc. Liége, 1878, p. 222) '. 
Oblong-ovate, pitchy-black, with a slight gloss. Front impressed and carinate over the mouth, subconvex and 
granulate between the eyes. Prothorax transverse, strongly constricted in front, the sides scarcely 
rounded behind, the anterior margin bisinuate ; anterior portion rather finely asperate and declivous, its 
junction with the posterior part marked by a transverse subelevated line, the latter half with subasperate 
punctures. Elytra twice as long as the prothorax, dull, with punctured strie, the interstices with 
transverse elevations, not very close at the base, sparser behind, and absent over the declivity, their 
interspaces with fine irregular punctures, becoming uniseriate at the apex of the 2nd and succeeding 
alternate interstices. 
Length 7-8 millim. 
Hab. Mexico, San Andres Tuxtla (Sal/é); Nicaragua, Chontales (Janson).— 
CoLomMBIA !, 
Like other species of Phlwodorus this one varies in the number and closeness of the 
interstitial elevations. It differs from P. nitidicollis in the absence of propleural 
foveee, in the submuricate prothorax, and in the few and sparse ruge on the basal 
half of the elytral interstices; but it may nevertheless prove to be the male of that 
species. 
7. Phleoborus imbricornis. | 
Phleoborus imbricornis, Eichh. Berl. ent. Zeitschr. 1868, p. 148 *. 
Hab. Mexico (coll. Haag"). 
T have seen neither the type of this species nor any specimens which correspond 
with the brief description. 
HYLESINUS. 
Hylesinus, Fabricius, Syst. Eleuth. ii. p. 390; Chapuis, Syn. Scol. p. 29 (Mém. Soc. Liége, 
1878, p. 237). 
This genus is of wide distribution, extending throughout Europe, Asia, the Malay 
Archipelago, Australia, and North and South America. Judging from the limited 
