156 ENTOMOLOGICAL NEWS [Apr., '17 



the crenulations is a detached rounded area. Wings very faintly sur- 

 passing the apices of the tegmina. 



Disto-dorsal abdominal segment with its distal margin arcuate, mod- 

 erately emarginate at the bases of the cerci ; supra-anal plate acute- 

 trigonal, faintly sulcate; cerci in their greater portion tapering, gently 

 curving dorsad, the apex rather sharply curved dorso-mesad, briefly 

 mucronate ; subgenital plate produced, narrowing, distal margin U- 

 emarginate, styles relatively short, articulate. 



Cephalic femora with two to three spines on the ventro-cephalic 

 margin; median femora with three to four spines on the same mar- 

 gin ; cephalic tibiae with slender distal portion faintly longer than the 

 inflated proximal section. Caudal femora equal to one-half the teg- 

 minal length, moderately tapering; ventro-external margin with fifteen 

 to seventeen spines distributed over its whole length, ventro-internal 

 margin with three to five spines on distal half. 



Natural coloration of specimen destroyed by liquid immersion except 

 for the following features. Eyes mars brown. Semilunate spot en- 

 circling the detached rounded knob at the base of the ulnar vein of the 

 tegmina, black; stridulating vein prout's brown; distal section of the 

 sutural margin of the tegmina bearing several well separated groups 

 of dark points, such as are found more decided in certain other forms 

 of this species group. 



Length of body, 19.5 mm.; length of pronotum, 5.5 mm.; greatest 

 (caudal) width of pronotal disk, 4.3 mm.; length of tegmen, 28.5 mm.; 

 greatest width of tegmen, 11.9 mm.; length of caudal femur, 15 mm. 



The type is unique. 



Coelophyllum crenulatum (Brunner). (PI. XII, fig. 2.) 



1801. Prosagoga crcnulata Brunner, Verhandl. K.-K. Zool.-botan. 

 Gesell. Wien, XLJ, pp. 170, 171. [Pernambuco and Alto Amazonas, 

 Brazil ; Guiana.] 



We have before us a single male of this species from Ca- 

 paro, Trinidad (June, 1913; S. M. Klages), belonging to the 

 collection of the Academy of Natural Sciences of Philadel- 

 phia. It can be readily differentiated from amasonicum by the 

 characters given in the key, but from costariccnsc the distinc- 

 tions are not as easy to appreciate. Under costariccnsc we 

 have given the diagnostic features separating the two forms. 



Coelophyllum costaricense new species. (PI. XII, lig. ?..) 



This new species is quite close to C. crciiulatnm (Brunner), 

 from which it differs in its larger size, proportionately broader 

 tegmina, somewhat less compressed pronotum and broader 



