Sept.,i 9 o6.] Bruner : The Orthopteka of Trinidad. 145 



color, rather robust in form, somewhat granulose, and provided with 3 

 longitudinal carin?e on the dorsum of thorax and abdomen, on the 

 latter the median one is looped or linked so as to appear as a chain, a 

 link to a segment. The head is provided on the occiput, with two 

 fairly prominent short spines or horns between and a little back of the 

 eyes. The legs are a trifle more robust and shorter than those of the 

 male, while its antennce are also much shorter. Its length is 50 mm. 

 A number of younger specimens show a great variation in color. 

 Some are green, others testaceous and still others ferruginous. 



41. Acanthoclonia histrinus Westwood. 



Ceroys histrinus Westw., Cat. Phasm. Brit. Mus., p. 60, No. 156, pi. 1, fig. 5. 

 A single female specimen by H. D. Chipman on Trinidad. 



Family ACRIDID.-E. 



Subfamily Tettigix.e. 



42. Amorphopus notabilis Serville. 



Amorphopus notabilis Serv., Hist. Nat. Ins. Orthopt., p. 757, pi. 13, fig. 2 

 1839). 



There are two specimens, i, and ?, in the collection made by 

 H. D. Chipman on the Island of Trinidad. One of these was ex- 

 amined by Dr. J. L. Hancock. 



43. Amorphopus antennatus Bolivar. 



Amorphopus antennatus Bol., Essai des Tettig., p. 77, pi. II, figs. 19, iga-d 

 887). 



Of this species the collections contain nine specimens. They were 

 collected by Messrs. Chipman and Broadway. It is the common 

 species of the genus in Central America, the West Indies and northern 

 South America. 



44. Tettix gracilis, new species 



A small and very slender species in which the median carina of the pronotum is 

 slightly arched just back of its anterior margin, less prominent elsewhere but quite 

 plain throughout. The entire insect is rather finely and sharply granular. Vertex 

 about as wide as the diameter of the prominent eyes, with a strong median carina, 

 but little advanced in front of the eyes ; frontal costa broad and very prominent be- 

 tween the antenna;. 



Length of body, d\ 6, of pronotum, 9.5, of hind femora, 4 mm. 

 Habitat. — Trinidad, West Indies, 2 males. H. D. Chipman. 

 These specimens were examined by Dr. Hancock and pronounced 

 not typical, but still evidently belonging to the genus Tettix. 



