£g Philippine Journal of Science ^ 



present paper will deal only with the true Machserotinse known 

 from Malaya. 



The first species known in this group was Machserota ensifera 

 Burmeister, 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, 

 Polychsetophyes and Pectinarophyes, were described by Kir- 

 kaldy 5 in 1906, though these were not included in Schmidt's 

 monograph. 



Machseropsis 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 explored 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 An damans) and China, to the Philippines, 

 Malaya, and Flores. 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; Gryponiachasrota 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 Machaerotinse 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 Grypomachserota and Sigmasoma is 



'Ent. Zeitg. Stettin 68 (1907) 16&-200. 

 «Ent. Zeitg. Stettin 73 (1912) 173-178. 

 6 Bull. Haw. Sugai' Plant. Exp. Sta. 1 (1906) 384-386. 



