CLV 
Promecops lineigera nov. sp. 
P. ovata, silacea, squamis pallidioribus, lineatim albido-notata; 
rostrum breve, in medio canaliculatum; antennæ ferrugineæ ; 
funiculus articulis longitudine sub-æqualibus; prothorax subeylin- 
dricus, sparse punctatus; scutellum rotundatum; elytra substriato- 
punctata, punctis squama alba in medio instructis, linea obliqua 
albida ab humeris — ad saturam interrupta — altera, minus obli- 
qua, pone medium, notata, apiceque pallidiora ; corpus infra pedes- 
que silacei, squamulis margaritaceis sat laxe vestiti. Long. 4mm, 
This species comes very near P. arcuata, the type of the genus, a 
variable species as to colour, which has setulose elytra, the lateral 
margin greenish-silvery, and the body beneath pitchy with bright 
green scales. Lacordaire would confine the genus to those species 
like the present, whose claws are united at the base, but in his 
generic description founded on such species, he inadvertedly 
describes the claws as free. | 
Arrhetus nov. gen. 
Oculi inferi, rotundati, tenuiter granulati. Rostrum modice 
elongatum, in medio anguste cylindricum; scrobes laterales. 
Antennæ præmedianæ; scapus arcuatus; articulo basali funiculi 
longiore, ceteris breviter cylindricis; clava ovata. Prothorax 
ampliatus, basi truncatus, lobis ocularibus ciliatis. Scutellum 
distinctum. Elytra prothorace haud latiora, humeris rotundatis. 
Propectus integrum; coxæ antice separatæ. Mesosternum breve. 
Abdomen segmentis duobus basalibus ampliatis ; sutura prima 
incurvata. Pedes robusti; femora dente minuto instructa; tibiæ 
apice bicalcaratae ; tarsi lati, unguiculis liberis. 
This genus is allied to S'érongylopterus which has a well-marked 
pectoral canal, more slender legs, narrower tarsi, etc. In Vettarhi- 
nus, a neighbouring genus, the canal is absent, as in Arrhelus. 
Arrhetus Volxemi nov. sp. 
A. ovatus, niger obscurus, supra nitide granulatus; caput 
tenuiter punctatum; inter oculos planatum et plus fortiter punc- 
tatum; rostrum nitidum, subtiliter punctatum, apice dilatum; 
antennæ piceæ, funiculus validiusculus, clava tomentosa; protho- 
rax subtransversus, ad latera rotundatus, basi vix angustior, 
granulis approximatis instructus; elytra in medio paulo latiora, 
apice late rotundata, granulis numerosis oblongis subseriatim 
ordinatis; corpus infra, femora, tibiæque subnitidæ, squamis 
parvis sparse indutæ; tarsi albo-pilosi. Long. 12", 
Hab. Therezopolis. 
