4 THE ENTOMOLOGIST S RECORD. 
Hesperia alveus, Hiib., race cENTRALITALIAE, mihi. What has 
been said of serratulae concerning the distribution may be repeated 
here, but in this case individual variation is distinctly different and 
clearly constitutes a different race. The size varies much less than in 
the Alps and the Pyrenees, keeping constantly to the lesser size known 
(23mm.-25mm. in expanse) ; the wings are narrow and elongated ; the 
extent of the white spaces varies on the contrary very much more than 
usual, specimens with a well defined band-like space of a distinctly 
white tone on hindwing being quite frequent in both sexes, and much 
more so than the oppositecextreme variation, in which those wings are 
uniformly grey; the underside of hindwings varies widely, ranging 
from the form with dull greyish-green, and with extensive white spaces 
having their outline rather shadowed, to the form with bright yellowish- 
green and with white spaces limited in extent and sharply outlined. The 
latter, when combined with the very white spaces on upperside of 
hindwing, mentioned above, go resemble foulquieri that Querci and I 
have not been able to detect a way of separating them from it, and we 
only know they are alveus from the verdict of Reverdin, who has 
examined their genitalia microscopically. Notwithstanding these 
exceptional specimens, which might well be called rouLquimRiFrormis, 
mihi, alveus and foulquiert keep, on the whole, distinct in the Sibillini 
mountains, as in other regions, and can be separated with a little care 
and practice, so that we do not doubt they are distinct species, as sup- 
.posed originally by Oberthtir, and confirmed very emphatically by 
Reverdin on examining the genitalia. 
Hesperia foulquizrt, Obth., race prcena, mihi. M. G. Foulquier has 
kindly collected for me a nice series of the nymotypical race from St. 
Zacharie in the Var; on comparing it with the Sibillini Mountains 
one, I find they differ’considerably: the Italian insect 1s much frailer, 
and its narrow wings give it a much smaller appearance than would 
seem from actual measurements of the expanse (about 24mm. as com- 
pared to the 26mm. of the French one) ; the colour is a little duller 
and inclining more to brownish, more suffused with grey scaling on 
the forewing, and with more extensive white spaces on hindwing, 
which culminate in the very white belliert, Obth. This was suspected 
to be a distinct species, but the genitalia gave no evidence in this sense, 
having been found identical with those of fouwlquiert; although in the 
locality of the “‘types”’ (Larche) it greatly predominates, it evidentiy is 
but a distinct mountain race; the material collected in the Sibillini by 
Querci distinctly points to this conclusion. In 1919 the captures 
were as follows: gs foulquiert, 15; transitions to bellieri, 8; belliert, 
4; 2s respectively 17, 4, and 4. I have called “transitions ’’ those 
specimens which on the upperside came very near the extent of white 
of belliert or reached it entirely, whereas on the underside they had the 
limited white spaces, broken up into separate spots, of foulquiert, and 
not the broad band-like spaces of bellieri; this form might be called 
SUPRA-BELLIERI, mihi. 
Heteropterus morpheus, Pall. This species was discovered in Italy 
by Calberla at Monte Rotondo, 165m., near Rome, and no other 
locality had been discovered since, to my knowledge, in peninsular 
Italy. It has now been found in June, 1919, in the Mainarde Moun- 
