130 ERNODES JACOBSONI. 



half the length of the mesonotum, the width subequal to 

 that of the broadest portion of the mesonotum ; median 

 segment slightly longer than the remaining portion of the 

 metanotum very sparsely tuberculate. Tegmina reaching 

 but a short distance caudad of the middle of the metano- 

 tum, trigonal in form, the greatest width (distal) equal to 

 about two-thirds of the tegminal length, distal margin sub- 

 truncate, the angles broadly rounded, tubercle not distinctly 

 indicated. Wings narrow, elongate, reaching slightly caudad 

 of the caudal margin of the metanotum, the apex very broadly 

 rounded. Abdomen nearly three-fifths the length of the 

 entire body, tapering, very faintly carinate dorsad, sparsely 

 granulate, the same more or less linear in disposition ; 

 anal segment hardly longer than the ninth dorsal abdominal 

 segment, sud-quadrate in general form when seen from 

 dorsum, the caudal margin arcuato-emarginate ; cerci very 

 slightly surpassing the lateral angles of the anal segment, 

 depressed, broad, sub-lanceolate, the tips blunt; supra-anal 

 plate very short, subtrigonal ; subgenital operculum reaching 

 to the caudal margin of the anal segment, compressed, boat- 

 shaped, with a prominent medio-longitudinal keel, apical 

 margin acute-angulate, the immediate angle sub-spiniform. 

 Cephalic femora very slightly longer than the mesonotum, 

 compressed, with the proximal flexure pronounced, the 

 dorsal margin sub-lamellate distad of the 

 flexure, all of the margins unspined; cephalic 

 tibiae very slightly shorter than the femora. 

 Median femora about two-thirds of the 

 length of the mesonotum, margins unarmed 

 aside from the blunt dentiform tubercle at 

 the distal extremity of the ventro-median 

 Ernode^ jacobsoni ^^^.{^^ . tibisB nearly subequal to the femora 

 Dorsal view of in length. Caudal femora reaching to the 

 ''onypr"(x''4)^' middle of the third abdominal segment, 

 aside from the more slender form similar 

 in structure and armament to the median femora; tibise 

 subequal to the femora in length ; metatarsus of the caudal 

 limbs two-thirds of the entire tarsal length. 



Notes from the Leyden IMuseum, Vol. XXXV. 



