160 PROCEEDINGS OF THE ACADEMY OF [Vol. LXXIV 



EULOPHOPHYLLUM new genus 



The single species, to include which the present genus is proposed, 

 is one of the most distinctive of the Orthoptera. This insect runs 

 to the Group Holochlorae, nearest the genus Liotrachela, from 

 which it is widely separated by features of the vertex, pronotum, 

 tegmina, limbs and ovipositor. In the form and venation of the 

 tegmina widest differentiation from any other known katydid is 

 found. 



Genotype. — Eulophophyllum thaumasium new species. 



Head deep, occiput convex with vertex curving and very strongly 

 declivent to the facial fastigium, medio-longitudinally sulcate. 

 Eyes elongate, vertical, not projecting strongly for the Group and 

 very weakly so laterad. Pronotum short, surface of disk weakly 

 concave with lateral margins raised in a rounded ridge; lateral 

 lobes vertical, with width approximating depth, ventro-caudal 

 portion decidedly produced cauclad and broadly rounded. Teg- 

 mina very broad; costal margin nearly straight, very weakly and 

 evenly convex; sutural margin broadly and evenly convex proximad, 

 becoming strongly convex distad, to the rather sharply rounded 

 apex at the costal margin. Tegmina with discoidal vein weakly 

 and evenly curved to apex, sending seven straight and moderately 

 oblique veins to the costal margin, which are parallel to and as 

 heavy as the mediastine vein; median vein with two weak distal 

 branches which curve distad in brief proximal portion, then recurve 

 and run back to the sutural margin as weakly curved veins parallel 

 to the similar branches of the ulnar vein. Ulnar vein separated a 

 brief distance from the median vein, running to end of proximal 

 three-fifths of tegmen, with three branches (the last actually the 

 recurved portion of the ulnar vein itself) which recurve sharply and 

 run back to the sutural margin as weakly curved, parallel and 

 equally separated veins. The branches of these tegminal veins are 

 all subparallel with intervening sections of the tegminal surface 

 weakly concave. Wings with intercalated triangle apical and 

 large. Mesosternal and metasternal lobes small, rounded quad- 

 rate. Ovipositor large, broad to the rounded apex, dorsal margin 

 denticulate to near base, ventral margin denticulate distad; basal 

 plica present, but weakly defined and rounded. Female subgenital 

 plate simple. Cephalic coxae spined. Femora moderately heavy. 

 Cephalic tibiae with dorsal surface flattened, subsulcate, bearing 

 on its internal margin a proximal and an apical spine; auditory 

 foramina flattened conchate internally, apert externally. 



Eulophophyllum thaumasium new species. Plate XII, figures 6 and 7. 



The remarkable tegmina, with costal margin nearly straight and 

 sutural margin strongly convex distad, give to the organs of flight, 

 when these are spread, a strongly Lepidopteroid contour. 



