CossonidfE of Japan. 33 
Genus 11. Macrorhyncolus (nov, gen.). 
Co7-pus fusiformi-cylindricum, angustum, subdepressum, 
calvum, nitidum, profimde sculpturatum : rostro brevi, 
crasso, lineari, arcuato; scrobe antice lata profunda brevi 
auricidiformi, dein subito angulatim deflexa et usque ad 
marginem oculi inferiorem currente; oculis sat magnis, 
rotundatis, paulo prominentibus et longe ante marginem 
prothoracis sitis: prothorace elongato-ovato, antice et 
postice truncato : scutello rotundato, valde distincto : 
metasterno elongate : elytris parallelis, postice vix atte- 
nuatis. AntenncB crassge, pone medium rostri inserta3 ; 
scapo curvato, gradatim valde clavato ; funiculo 7-arti- 
cvdato, art." l""" reliquis paulo majore, sequentibus subte- 
qualibus, latitudine vix crescentibus, inter se argute divisis 
sed baud laxis ; cajntulo ovato, apicem versus conspicue 
3-annulato. Pedes breves, validi, crassi, antici ad 
basin parum approximati, intermedii distantiores, pos- 
^2 c 2 valde distantes: femoribus muticis: tibiis ad apicem 
externum in imcum acutum, necnon ad internum in 
spinam minorem productis : tarsis breviusculis, crassius- 
culi's, art.'* 1™°, 2^° 3*'°que longitudine subaequalibus (nee 
1""° elongato), 3"° fere simplici (i.e. vix dilatato, vix 
bilobo), ult.™" unguiculis parvis armato. 
Obs. — Rhyncolo affinitate proximum, sed difFert corpore 
majore, longiore, ac magis cylindrico, rostro (licet brevi, 
crasso) conspicue parallelo, nee triangulari, scrobe aliter 
formata, oculis majoribus ac magis prominentibus, anten- 
nis pone (nee ante) medium rosti-i insertis, prothorace 
longiore, tibiisque (preesertim anticis) ad angulum inter- 
mim in spinam majorem productis. A Cossono differt 
corpore minore, angustiore, magis fusiformi, rostro bre- 
viore latiore ac magis parallelo, oculis omnino rotundatis, 
antennis pedibusque plus minus brevioribus crassioribus, 
funiculi articulo secundo nullo modo sequentibus longiore, 
tarsorumque articulo primo minus evidenter elongato, et 
tertio sensim latiore ac magis cordato. 
A [xaxgog, longus, et Rhyncolus. 
The four individuals from which the above structural 
diagnosis has been drawn out might seem at first sight to 
I'epresent an unusually large and elongate species of 
Rhyncolus ; but a more critical examination will show 
that they cannot be associated. with that group. Not to 
TRANS. ENT. SOC. 1873. — PART I. (mAR.) D 
