AMERICAN ORTHOPTERA. / 



Vates amiecteiis Rehn. 



1900, Vates annectens Rehn, Trans. Amer. Ent. Soc, xxvii, p. 85. 



Four males; Tacubaya, D. F., Mexico. October. Collected by 

 Otis W. Barrett. 



Family PHASMID^. 



Serniyle giiatemala> n. sp. 



Type, 9 ; Gualan, Guatemala. Mrs. S. P. McElroy (U. S. N.M.). 



Apparently closest allied to S. mezicana* Saussure, but differing 

 in the spiniform interocular processes, and in the absence of any 

 dorsal foliaceous lobe on the fifth abdomen segment. With the 

 other species of the genus — saussurii, azteea and strigata — no com- 

 parison is necessary, the general characters of the head being shared 

 by mexicana alone. 



General build moderately robust, the entire body tuberculate, the tubercles 

 most numerous anteriorly. Head with six longitudinal rows of tubercles, the 

 median pair strongest developed, the second tubercle in each row being spini- 

 form, several spines forming an additional group between the median rows; 

 antennae about half as long as the body, the basal joint considerably flattened. 

 Prothorax about as long as broad, the collar slightly constricted ; mesothorax 

 elongate, over four times as long as the prothorax ; metathorax considerably 

 shorter than the mesothorax, heavy, showing traces of a median carination which 

 also extends over the median segment and on the abdomen ; median segment 

 very short, over twice as broad as long. Abdomen moderately elongate, the 

 tubercles arranged in four longitudinal rows on the dorsal surface, the lateral 

 aspect with two longitudinal roughened carinas; fifth segment somewhat inflated, 

 no foliaceous lobe developed from the medio-dorsal portion of the segment, the 

 lateral angles being posteriorly produced into rounded posteriorly projecting 

 lobes. Femora and tibia; multicarinate ; anterior and posterior tibiae slightly 

 exceeding the femora in length. 



General color Vandyke brown, becoming walnut brown on the abdomen ; limbs 

 and antenna? raw umber. 

 Measurkments : 



Length of body 80. mm. 



Length of prothorax ..... 4. mm. 



Length of mesothorax ..... 18. mm. 



Length of metathorax ..... 11.5 mm. 



Length of abdomenf 43. mm. 



Length of anterior femora .... 17. mm. 



Length of median femora .... 11. mm. 



Length of posterior femora .... 17.5 mm. 

 Libel lira t rideus (Burmeister). 



1838, B[acleria] Iridens Burmeister, Handb. d. Ent., ii, p. 567. 



Three specimens; one male, two females ; Cuernavaca, Morelos, 

 Mexico. September. Collected by Otis W. Barrett. 



* Revue et Magasin de Zoologie, 2e ser., xi, p. 62. 

 t Including the median segment. 



TRANS. AM. ENT. SOC, XXIX. NOVEMBER, 1902. 



