MEMBRA CIDM. 
75 
tlie second and third pair of tibire spatulate; the tegmina dark, and when viewed at 
an angle feebly iridescent. 
Figured from the Hope Collection. Bates’ Collection in the B.M. gives the 
Habitat .—Villa Nova. 
Size (1x4 mm. 
PTERYGIA FLAVOPUNCTATA, n.s.* 
(Plate XIII. fig. 4, 4a.) 
There is a small unlabelled insect in the Hope Collection which does not agree 
well with either the genus Pterygia or Bolbonota. One of its characteristics consists 
in all the tibiae being non-spatulate, and the hind-legs spinose. In colour and marking 
it shows some alliance with Bolbonota luzonica (PI. IX. fig. 8). From a few 
examples I hesitate to make a new genus. Femora bright ochreous ; tarsi black ; 
tegmina with tips ochreous and the rest brown, spotted with yellow. Probably this 
insect is identical with Bolbonota flavopunctata , though it is here placed under a 
different genus. 
Habitat .—S. America. 
Hope Collection (Miers). 
PTERYGIA INCOGNITA, n.s. 
General colour reddish-brown, without any mealy white spots; second dorsal 
hump inconspicuous ; supra-humerals short and thick, with clavate tips which are 
rather pointed at their extremities; metopidium greyish ; dorsal pronotal ridge finely 
spinous, the surface punctate or finely tuberculose; general form like that of 
P. satanas. 
Habitat. —Amazons. 
Bates Collection at the Museum, Oxford. 
The following species of the genus Pterygia are contained in the cabinets of the 
British Museum but are not figured in this monograph : 
Pterygia macquartii, Lap. Ann. Soc. Ent. Fr. p. 221; Fairm. l.c. p. 265 ; pi. 6, fig. 6, Brazil. 
Pterygia exaltata, Walk. l.c. p. 502. Pterygia brachycera, Fairm. l.c. p. 265, Brazil. Pterygia 
maculosa , Walk. Ins. Saund. p. 65, Amazons. Pterygia punctuosa, Walk. l.c. p. 65. Probably 
this last insect is a variety of P. maculosa. 
I have before suggested that a new genus Xanthosticta may be formed to include these 
anomalous species. It might comprise Bolbonota flavopunctata, Bolbonota plicala, Bolbonota grisea, and 
Bolbonota luzonica. 
