434 



PROCEEDINGS OF THE ACADEMY OF 



[June, 



gium and siibangulate when viewed laterad ; cephalad descending 

 slightly, bearing two distinct lateral and a weak median carinse; fas- 

 tigium horizontal, the proximal width considerably greater than the 

 length, the lateral carinse of the vertex continued on the fastigium, 



Fig. 30. — Sylctria angnlata n. gen. and sp. Lateral view of type. 



distal portion angulate, the immediate angle blending into the frontal 

 costa, broadly and shallowly excavated, the margins elevated, frontal 

 costa narrow at its junction with the fastigium, expanding slightly 

 between the antennse, the margins below rather 

 weak, constricted sharply below the ocellus, but r, f! 



ventrad to this of the normal ^^'i(lth and reaching '\\ jj 



the clypeal margin, strongly punctate dorsad, sul- 

 cate at and below the ocellus ; lateral facial carinse 

 distinct; lateral ocelli placed at the base of the 

 fastigium, median ocellus placed ventrad of the 

 slight dorsal expansion of the frontal costa; 

 eyes elongate elliptical; antennae missing. Pro- 

 notiun with the median carina slight but dis- 

 tinct, slightly more elevated at the intersection 

 of the caudal sulcus ; cephalic margin sub- 

 truncate with a very small median emargina- 

 tion; caudal margin rectangulate, the angle very 

 marked and the margin laterad very slightly emar- 

 ginate; transverse sulci three in number, the meta- 

 zona slightly longer than the prozona; lateral 

 lobes longer than deep, the cephalic margin 

 very slightly sinuate, ventral margin distinctly and 

 sharply rotundate-emarginate cephalad, the ventro- 

 cephalic angle obtuse, caudal portion of the ventral 

 margin and the ventro-caudal angle rounded into 

 the caudal margin, which is arcuate with a very Fig. 31.— Syletria 

 slight humeral concavity. Tegmina considerably <^^9ulfita n. gen. and 

 exceeding the abdomen and caudal femora in type. 



