255 
the type in being evidently larger (long., £1.) and in their apical 
ventral segment being less strongly punctured. I judge these 
differences to be sexual, and the larger examples to be females. 
N. Queensland ; taken by Mr. Koebele near Cairns. 
C. minutus, Blackb. In describing this insect I called it 
“minus fortiter punctulatus.” I think this phrase liable to con- 
vey the impression of its puncturation being feebler than it 
actually is and that ‘“subfortiter” would be more accurate than 
“minus fortiter,” the puncturation of the elytra being rather 
strong and well-marked for a Scymnid. 
SERANGIUM. 
S. bicolor, sp. nov. Late ovalis, subcircularis; nitidus; valde 
convexus ; setis albidis sat elongatis sparsis vestitus ; niger 
vel piceo-niger, capite antice antennis palpis pedibus 
abdomineque apicem versus fulvis, nonnullorum exemplorum 
(1 immaturorum) corpore subtus toto fulvo; fere levis. 
dongs ss) lat..o—2 dL. (vix): 
The uniform (except on the front of the head) black color of 
the upper surface at once distinguishes this species from all the 
previously described members of the genus. 
N.S. Wales; taken by Mr. Froggatt near Maitland ; specimens 
taken by Mr. Koebele in N. Queensland do not seem to differ 
from those sent by Mr. Froggatt. 
BUCOLUS. 
B. frater, sp. nov. Sat late ovalis; sat fortiter convexus; sat 
nitidus ; pube albida brevi erecta vestitus ; piceo-niger an- 
tennis tarsis abdomineque rufis; capite prothoraceque crebre, 
elytris minus crebre, subfortiter punctulatis. Long., 12 1.; 
lat., I) 
This species is closely allied to that which I described as 
B. convexus, differing from it chiefly by its prothorax concolorous 
with the general surface and the very evidently less close punc- 
turation of its elytra. I doubt whether these two species will 
remain permanently in Bucolus ; indeed I should like to propose 
a new generic name for them, but cannot find any distinctive 
structural character that seems to me of sufficient importance for 
the purpose. They have the produced prosternum, the externally 
angular tibie, the strongly foveolate epipleure and the peculiar 
abdominal lamelle of B. Fourneti, Muls. The last-named how- 
ever differ slightly ; those of B. Yourneti do not reach the apex 
of the first ventral segment and therefore are not confused with 
the first ventral suture; when this is the case, in most Coccinellidee 
the lamelle are complete but in Aucolws the whole lamella be- 
comes confused externally with the general surface and _ its 
