X, D, 1 Baker: Philippine Jassoidea 51 



represented in endless intergrading conditions in American 

 species of Jassits. In the several hundred tropical American 

 species of the genus Jassus we might easily separate a large 

 number of genera as good as Guliga of Distant. A number of 

 the genera included in this tribe are so described that they 

 cannot be understood without further study and description. 

 For instance, in Kirkaldy's description of Muirella he mentions 

 a number of characters not at all generically diagnostic, but 

 fails to mention if an appendix is present or not, and this point 

 is not clearly shown in the accompanying cut. In the same 

 genus he describes the vertex as two and one-half times as long 

 as wide at base, but his figure shows it not twice as long as 

 wide. In this case I have followed the figure.* 



A provisional synopsis — confessedly imperfect — of the genera 

 of this division will indicate some of the relationships men- 

 tioned above. In many respects this synopsis is too artificial, 

 but this cannot be avoided with our incomplete knowledge of 

 some of the genera. For instance, the median pronotal carina 

 should not be used as a primary character, and Thagria should 

 fall near Tharra and Soortana. 



Key to the genera of the division Jassaria.^ 



a\ Fore femora and tibiae normal. 



&\ Pronotum not medially carinate or only obsoletely so near anterior 

 margin. 

 c^. Eyes not adjoining front in facial view. 



cP. Scutellum minute Tinobregmus Van D. 



(P. Scutellum normal to large. 



e\ Antennal scrobes abnormally high on face, above level of eyes in 

 facial view; antennae longer than body. 



Macroceratogonia Kirk, 

 e^ Antennal scrobes near inner lower angle of eyes. 

 f. Wings with two apical cells. 



g^. Clypeus strongly umbonate Paracoelidea Baker. 



g'^. Clypeus plane Neoeoelidea Baker. 



f. Wings with three apical cells. 



Sr\ Tegmina without an appendix Palicus Stal. 



g'. Tegmina with an appendix. 



h^. Vertex more or less elongately, usually angularly pro- 

 duced, always longer than width between eyes and 

 usually strongly foveate; front usually very long and 

 narrow. 



' A specimen of Muirella, received from Muir since the above was writ- 

 ten, does not agree with either the description or figure, the length of 

 vertex being slightly more than twice interocular width. 



' Here should also be included the Doda of Distant and apparently the 

 Toba of Schmidt. 



