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NATURAL SCIEXCES OF PHILADELPHIA. 



383 



occUifonn inarkiiig ut" the margin of the tympanal field of the male 

 tegmina. .< 



Size rather small; form somewhat compressed. Head with the occi- 

 put very slightly rounded, vertex slightly declivent; fastigium trigonal, 

 the margins slightly concave and the apex roundly tuberculate, the 

 proximal portion having the margins roundly elevated and the middle 

 sulcate, when viewed laterad the fastigium is seen to be strongly 

 depressed mesad, with the apex somewhat elevated and not extending 



Hyper phrona siijnuta n. sp. Lateral view of male type. (X 3.) 



cephalad of the proximal joint of the antenna; facial fastigium acute; 

 eyes subglobose; antennae half again as long as the greatest length, 

 slender. Pro.notum with the disk subdeplanate, laterad with the angles 

 rounded and the greatest caudal width contained once and a half in the 

 length, cephalic margin slightly cmarginate, caudal margin strongly 

 arcuate; lateral lobes slightly longer than deep, cephalic margin slightly 

 sinuate, ventral margin rounded obtuse-angulate, caudal margin mod- 

 erately arcuate with the humeral sinus moderately deep and broad. 

 Tegmina slightly more than three times as long as the head and prono- 

 tum together, ovate-lanceolate, the greatest width contained about three 

 and a third times in the length; costal and sutural margins regularly 

 but not strongly arcuate, apex rounded ; median vein diverging slightly 

 proximad of the middle, simple or furcate,^ reaching the sutural margin 

 shortly proximad of the apex; anterior ulnar vein almost straight; 

 tympanum of the male with the stridulating vein very stout. Wings 

 extending beyond the tegmina a very short distance, narrowly rounded 



* In the types furcate only on the left teginen of the female. ^' . _ 



