Mr. J. Walton on the genus Sitona. 227 
On the dried stems of the larger umbelliferous plants in the 
plains of Southern Sardinia. 
I cannot assert the identity of my specimens with the species 
of Fries, not having been able to compare their fructification ; my 
plant differs from the Byssisede, under which name other really 
distinct species are perhaps confounded. Sp. aquila has been 
found hitherto on rotten branches only, and has therefore been 
referred to Byssisede : my specimens might be ranked with Cau- 
licole. 3 
IV. Berta. 
Perithecia erumpentia oblonga ovoideave, stromate effuso atro cruste- 
formi insidentia, cellulis mediocribus subrotundis contexta, fere 
suberosa, tenacia, rugoso-verrucosa ; in sicco rugoso-tuberculata, 
rigida, ostiolo inconspicuo vel saltem minutissimo predita. Asci 
creberrimi octospori, fixi, cito evanidi. Paraphyses tenuissime. 
Sporidia hyalina, cylindracea, utrinque obtusa, curvula, endosporio 
ab episporio haud distincto, septo medio bilocularia. 
I have named this genus after Dr. Giuseppe Berti of Porto 
Maurizio, to whom I owe numerous collections of cryptogams 
from Eastern Liguria. 
Bertia moriformis. Sph. moriformis, Tode Fung. Mecklenb. 1. 
p- 22. n. 19. tab. 11. fig. 90. a, 6, c, tolerably correct but incom- 
plete ; Fries, Syst. i. p. 458; Sclerom. Suec, ed. 2. n. 125. 
Found for the first time in Italy by my illustrious friend Baron 
Vincenzio Cesati. A species common in other parts of Europe, 
but very variable in its mode of growth and in size ; nevertheless 
the nucleus, the asci and the sporidia always preserve the same 
characters in solitary individuals as well as in those which are 
clustered together; a fact, be it. observed, which supports the 
maxim I have tried to establish, and which I hope in the sequel 
to be able triumphantly to demonstrate. 
In the distinction of the genera and species we ought to set the 
highest value on those characters which are drawn from the form 
and structure of their sporidia. 
XXXI.—Notes on the genus of Insects Sitona, with descriptions 
of two new Species. By Joun Watton, Esgq., F.L.S. 
Fam, CURCULIONID A. 
Genus Sirona, Germ., Steph.; Sironus, Schinh. 
§ A. Eyes subdepressed. 
1. Sitona hispidula, Fab., Germ., Steph., Schénh. 
— pallipes, Steph. 
Curc. hispidulus, Marsh., Gyll., Kirb. MSS. 
The subimmersed eyes, and the erect rigid hairs scattered on 
