256 



ENTOMOLOGICAL NEWS 



[June, 'n 



Size, rather small ; form, robust. Head broad, occiput nearly hori- 

 zontal ; fastigium narrow, spiniform, apex rounded, not extending ce- 

 phalad of the proximal antennal joint ; eyes globose, but little prominent ; 

 antennae with proximal joint swollen on internal face. Pronotum with 

 greater dorsal width contained more than twice in length of same, 

 caudal section of disk produced caudad in an arcuate extension cover- 

 ing almost the entire tympanal field of tegmina ; cephalic margin of 

 disk truncate ; lateral lobes with their greatest depth contained over 



Fig. 3. Bertoniella agrarcioides n. gen., n. sp. Lateral view of male type (x 3). 



one and one-half times in greatest length; ventral margin oblique 

 truncate, ventro-caudal angle obtuse-angulate, caudal margin oblique 

 truncate, humeral sinus hardly appreciable. Tegmina sublanceolate, 

 about reaching base of supra-anal segment, costal margin arcuate 

 distad, apex rounded, structure coriaceous, subreticulate. Wings dis- 

 tinctly but not greatly shorter than tegmina. Supra-anal segment (ter- 

 minal dorsal abdominal segment) very narrowly fissate for about one- 

 third of its length, margin very obtuse-angulate ; cerci with lateral 

 face of proximal portion decidedly and roundly excavate ; subgenital 



plate with styliform appendages fairly robust, 

 parallel, separated by about the width of one 

 appendage, true styles short. Cephalic femora 

 about two-thirds as long as the pronotal disk, 

 armed with three spines distad on the ventro- 

 cephalic margin, ventro-caudal margin un- 

 armed ; median femora slightly shorter than 

 cephalic pair, similarly armed ; cephalic tibiae 



with tympanum cleft-shaped, cephalic and 

 Fig. 4. Bertoniella agrae- 



cioides n. gen., n. sp. median tibiae unarmed dorsad, armed on both 



Dorsal outline of prono- 



tum of male type x 3). margins ventrad ; caudal femora about as long 



