nine British Species of the Genus Hyleus. 3d 
these patches of hair will be observed to form a guard or cushion 
to the ventral segment of the bodies of the males of several spe- 
cies of bees which repose in flowers, in which they are found 
curled up. 
Sp. 8. Hyleus punctulatissimus, 
Aculeate; black, with a cream-coloured stripe close to the 
eyes, crescent-shaped. Antenne black. Thorax coarsely punc- 
tured; the collar on each side, tubercles, and a spot on the tegule, 
pale yellow; wings coloured; anterior and intermediate tibice 
pale at their base; posterior tibize with a narrow pale ring at their 
base. The abdomen with a fringe of white hair on each side of 
the first segment, and the abdomen laterally clothed with a fine 
silvery pile. 
Male.—Face yellow ; scape of antenne with a yellow line in 
front. Antenne piceous beneath. Thorax coarsely punctured ; 
a yellow spot on the tegule; the legs piceous ; anterior tibiz 
fulvous in front, the intermediate yellow at the base, the posterior 
annulated with yellow; the intermediate and posterior plante 
yellow ; all the tarsi piceous. 
Length, 3 lines. 
N.B. Var. y of Kirby’s annularis, on comparison I find is the 
$ of my punctulatissimus. 
I have little hesitation in placing these, as sexes, together. I 
took them in company at Coomb, in flowers, and met with no 
other species. 
Sp. 9. Hyleus hyalinatus. 
Aculeate; head black; very minutely punctured, with deep 
scattered punctures intermixed. Antenne black, slightly piceous 
beneath. Thorax, like the head, is finely punctured, with large 
deep punctures intermixed ; wings hyaline, nervures black ; all 
the legs black; posterior pair annulated with pale yellow. Ab- 
domen black, with silvery hairs on the ventral segment. 
Male.—Black ; face yellow. Antenne with the scape black, 
the remaining joints fulvous beneath; the face is very coarsely 
punctured; the thorax has a scattered silvery pubescence, par- 
ticularly beneath; a yellow spot on the tegule and tubercles ; 
wings hyaline; anterior femora yellow, with a brown stain be- 
hind ; intermediate and posterior tibiz annulated with yellow ; 
all the plante and following joint yellow, the rest rufescent. 
Length, 2 lines. 
VOL. Iv. D 
