388 Annals of the Carnegie Museum. 



137. Eriolus jamaicensis sp. nov. 



A moderately large insect related to E. frater Redtenbacher, E. 

 mexicanus Saussure, and E. consobrinus Saussure & Pictet, from all 

 three of which it differs in having in a representative of this genus a 

 remarkably long fastigium of the vertex. 



Moderately robust, unicolorous, grass-green. Fastigium of the 

 vertex more than twice the length of the basal antennal joint, rounded 

 above, carinated, and provided with a well-developed tooth below, 

 its apex acuminate. Pronotum minutely granulose, the disc flattened 

 and with its sides nearly parallel, the anterior margin very shallowly 

 and roundly emarginate, the hind margin rotundo-truncate. Teg- 

 mina ample, coriaceous, closely and irregularly veined, gently taper- 

 ing, the apex reaching far beyond the tip of the abdomen and even 

 beyond the tip of the ovipositor, the extreme point subacuminate. 

 Legs robust, short; anterior and middle femora six-spined; hind 

 femora furnished below with seven to ten inconspicuous spines on the 

 external and as many as two very small ones on the inner margin; 

 anterior and middle tibiae strongly spined below on both margins, the 

 hind pair weakly spined. Meso-sternal lobes each provided in front 

 with a minute blunt spine; metasternal lobes unarmed. Ovipositor 

 moderately heavy, but gently arcuate, its upper margin bisinuate, 

 widest a little before its middle, the valves provided with a roughened 

 area caused by a series of obliquely directed closely arranged depressed 

 lines; apex broadly rounded, the lower valves much shorter, narrower, 

 and oblique at the apex. Subgenital plate of abdomen of female 

 short, carinated at the middle, the sides terminating in prominent 

 style-like teeth, the apex sinuate. Cerci of male moderately heavy, 

 fully twice as long as broad, bowed inwards, and a little upwards, 

 terminating in two teeth, the lower one much the larger and directed 

 inwards; subgenital plate large, nearly twice as long as the basai 

 width, strongly depressed and minutely carinated at middle, the 

 lateral halves triangular in cross-section, broadly wedge-shaped, 

 terminating in a small, rounded, tooth-like spine, middle deeply and 

 angulately emarginate. 



Length of body, cf , 27-30 mm., 9 , 32 mm.; of fastigium, cf , 2.75 

 mm., 9 , 3 mm.; of pronotum, cf , 7 mm., 9 , 7.25 mm.; of tegmina, 

 cf , 33-34 mm., 9 , 37 mm.; of hind femora, cf , 12 mm., 9 , 12.5 mm.; 

 of ovipositor, 1 1 mm. 



Habitat. — 3cfcf and i9, Jamaica, West Indies. The\- belong to 



