68 Philippine Journal of Science 1919 
present paper will deal only with the true MachEerotinse known 
from Malaya. 
The first species known in this group was Machserota ensifem 
Burnieister, described in 1835, from Manila. In 1907 3 Schmidt 
presented a monograph of the group, separating it into four 
tribes and recognizing eight genera. In 1912 the same 4 author 
added two genera, Modiglianella from Sumatra and Neuroma- 
chserota from German East Africa. Two Australian genera, 
Polychxtophyes and Pectinarophyes, were described by Kir- 
kaldy 3 in 1906, though these 'were not included in Schmidt’s 
monograph. 
Machxropsis Melichar is known only from Ceylon, Ender- 
leinia Schmidt only from Togo, and P achy machserota Schmidt 
from Australia and Sumba. Therefore, half of the known ge- 
nera and the larger proportion of the known species come from 
the Malayan Region. Since this region, as well as Australasia, 
is but little exploi’ed as to the Homoptera, the known forms of 
this group probably represent but a small part of the genera and 
species in existence. So far, Machserota appears to be the only 
genus of wide distribution, species of it being found from India 
(with Ceylon and Andamans) and China, to the Philippines, 
Malaya, and Fiores. It will undoubtedly be found still farther 
to the southeast, through the Moluccas. New Guinea will al- 
most certainly yield interesting members of the group. 
In the present paper, two new Philippine species are added 
to Machserota; Grypomachaerota is shown to be represented by 
two new species in Borneo and to occur in Penang ; and Maxudea 
is for the first time recorded from the Malay Peninsula. 
The Machserotinae present a most interesting field for anatom- 
ical study. The sclerites of the thorax are deeply and sharply 
marked, and present most remarkable forms. A sounder class- 
ification will undoubtedly be possible when these have been ex- 
haustively studied. The hind femora (? in Maxudea ) usually 
have a strong tubercle beneath at base. The membranous ap- 
pendix of tegmina is usually transversely fluted. The impressed 
horizontal suture in front of ocelli is the actual anterior margin 
of vertex, the sutures passing forward from its extremities 
being the lateral margins of frons. The upper portions of the 
cheeks are thus distinctly superior. It thus results that the 
projection of the head in Grypomachxrota and Sigmasoma is 
3 Ent. Zeitg. Stettin 68 (1907) 165-200. 
‘Ent. Zeitg. Stettin 73 (1912) 173-178. 
6 Bull. Haw. Sugar Plant. Exp. Sta. 1 (1906) 384-386. 
