332 NEW TROPICAL AMERICAN ORTHOPTERA 



marginal serrulations weakly or not at all indicated, in the pres- 

 ence of yellow instead of red on the dorsal surface of the abdomen 

 in both sexes, and in the absence of a decided yellow line along 

 the ventral margin of the external pagina of the caudal femora, 

 as found in sordida. 



When compared with C. coxalis (Serville), the present species 

 is seen to differ in numerous features of the coloration, in the 

 metazona of the pronotum being distinctly shorter than the 

 prozona, instead of subequal as in coxalis, and in the speciaUzed 

 structure of the ovipositor jaws of the female. The species 

 sordida and matensis are members of a species group well removed 

 from coxalis. 



Type. — 9 ; Rio Mato, Venezuela. October to November, 

 1909. (M. A. Carriker Jr.) [Academy of Natural Sciences of 

 Philadelphia, Type no. 5315.] 



Size relatively large: form robust: surface of head, pronotum and pleura 

 rugoso-cicatricose, scattered sections of the same sub-strumose, the impressions 

 producing a decided scrobiculation. 



Head very similar to that of C. sordida but proportionately broader across 

 both the eyes and the genae : fastigium strongly declivent, much more so than 

 in sordida, when seen from the dorsum the surface of the fastigium is distinctly 

 bifoveolate with a median ridge; when seen from the side the interantennal 

 portion of the frontal costa is not at all produced and rounds regularly into the 

 weakly arcuate line of the face; when seen from the front the interantennal 

 portion of the frontal costa is sUghtly narrower than in sordida, while the 

 strumose character of the vental section of the frontal costa, of the face and 

 supplementary carinae of the same is less decided than in sordida, being more 

 broken into separated nodes: eyes moderately prominent, flattened short eUip- 

 tical in basal outline, the greatest depth contained nearly twice in that of the 

 infra-ocular sulcus : antennae over twice as long as the dorsum of the pronotum, 

 slender. 



Pronotum quite short, robust, scrobiculose-cicatricose : greatest dorsal width 

 of disk contained slightly more than one and one-fifth times in the length of 

 the same ; cephalic margin of the disk with a weak median emargination, caudal 

 margin of the disk arcuate with a very faint angulation mesad; median carina 

 weak, but faintly more evident than in sordida and not so much confused with 

 the strumose pattern; transverse sulci less evident than in sordida, narrower: 

 lateral lobes of the pronotum sUghtly narrower ^n proportion to the depth 

 than in sordida; margins of the lobes in general as in sorjlida but the ventro- 

 cephaUc angle is distinctly strumose. Tegmina surpassing the femoral apices 

 by about two-thirds of the length of the pronotal disk, relatively broad, the 



'Trans. Amer. Entom. Soc, xlii, p. 290, (1916). 



