28 JAMES A. G. REHN. 



spite of the great variability which has been found to exist in the 

 allied species of the genus.* 



Size medium. Head rotundate; vertex produced, sulcate, the fastigium acumi- 

 nate, slightly upturned ; eyes sub-globose, exserted ; antennae filiform, over twice 

 as long as the body. Pronotum obscurely tuberculate, the transverse sulci strongly 

 impressed; anterior margin rotundate, posterior margin truncate; lateral lobes 

 with slightly sinuate lower margins. Tegmina reaching to the extremities of 

 the bind femora, narrow, venation very prominent. Wings slightly inferior to 

 the tegmina in length. Anterior and median femora armed on the anterior lower 

 margins with from five to seven spines; anterior tibiae broad, the lower margins 

 of both anterior and median pair with from seven to eight rather small spines. 

 Posterior femora very much inflated, the genicular lobes rounded, the external 

 lower margin bearing eight spines; tibige quadrate, all of the margins spined, 

 the lower two with more numerous and heavier spines. Supranal plate small, 

 triangular, longitudinally sulcate. Cerci short, robust, the apical portion very 

 much thickened and expanded, one tooth very short and blunt, the internal one 

 directed inwards, elongate, spiniform, the diastema broadly emarginate. Sub- 

 genital plate produced, apically with a deep triangular emargination ; styles 

 fusiform, as long as the free portion of the subgeuital plate. 



General color wood-brown ; the veins, occiput, margins of the pronotum and 

 spines on the limbs black. 

 Measurements : 



Length of body (approximately)! • • ■ 35.5 mm. 



Length of pronotum 7.5 mm. 



Length of tegmina 27.5 mm. 



Length of hind femora 21. mm. 



Liparoscelis nigrispina Stal. 



1873, Liparoscelis nigrispina Stal, Ofv. K. Vet.-Akad. Forhandl., xxx, No. 4, 

 p. 49. 



Twelve specimens; six males, six femaies ; Yucatan. Schott. 

 Acad. Nat. Sci. Phila. (1). Tekanto, Yucatan. Acad. Nat, Sci. 

 Phila. (11). 



Cocconotus castus Brunuer? 



1895, Cocconotus castus Brunner, Monogr. der Pseudophyll., p. 210. 



Two females ; Mexico. Acad. Nat. Sci. Phila. 

 These specimens are rather doubtfully assigned to this species, of 

 which only males have previously been known. 



Cocconotus modcstus Brunner? 



1895, Cocconotus modestus Brunner, Monogr. der Pseudophyll., p. 204. 



One female; Honduras (U. S. N. M.) 



* Vide Saussure and Pictet., Biol. Cent.-Amer., Orth., i. pp. 423, 424. 

 ■j- Exact measurement with dividers is here impossible, as the abdomen is very 

 much depressed and bent. 



