MEXICAN ORTHOPTERA. 91 



Tegmina ample, just surpassing the hind femora; ulnar area reticulate ante- 

 riorly, with one row of cells increasing in depth posteriorly ; discoidal area re- 

 ticulate anteriorly, with one row of cells. Hiud femora and tibia rather slender. 

 Subgenital plate acuminate, punctate, inferiorly with a basal pit. 



Greueral color dull blackish brown variegated with several shades of *green. 

 Head with two stripes of pea-green extending from near the anterior border of 

 the eye on to the pronotum, the lower margin being on a level with the middle 

 of the eye, this being bounded inferiorly by a blackish stripe, the lower face 

 being dull greenish ; the median facial carinse markedly greenish. Eyes dull 

 brown, splashed with blackish ; antennae brownish. The scapular area of the 

 tegmina with a streak of bluish green. Wings deep blackish, more transparent 

 posteriorly, Abdomeu deep blackish. Hiud femora and tibije almost solid black, 

 except the superior area of the former which is pea-green. 

 Measurements : 



Length of body ....... 21.5 mm. 



Length of tegmina ....... 18 " 



Length of hind femora ...... 9 *' 



Length of antennae 9 '' 



It is quite possible that this species may be generically or sub- 

 generically distinct from Syrhula, but at present I have placed it 

 in that genus with which it exhibited affinity, though it differs radi- 

 cally from the previously known .species, particularly in the pattern 

 and amount of reticulation of the tegmina. 



MERITS* subg. nov. 



Differing decidedly from Syrbula proper in general proportions, 

 in the pattern of the lateral carinte of the pronotum, the greater 

 facial angle, the ab.sence in the female of any fuscous mottling of 

 the tegmina, the smaller eyes, and in various other points of struct- 

 ure. The full characters are those of the only known species. Re- 

 cognition of this generically would not be unwarranted, but at pres- 

 ent I prefer to leave it of subgeueric rank. 



Syrbula (Herns) ralida n. sp. 



Types: two specimens; females, Eslava, D. F., x. 



Form -Stout, thick and heavy. Size medium. Fastigium well produced, acute 

 angulate, lateral cariiise moderately developed, median carina distinctly visible, 

 much stronger anteriorly. Facial angle oblique, the angle greater than i^yrbuhi. 

 Eyes small, superior anterior border produced, about equal to the infra-ocular 

 space. Frontal costa well produced, decidedly so superiorly, constricted at its su- 

 perior junction, very slightly so at the ocellus, then diverging and finally ending 

 almost at the clypeus: moderately sulcate from below the antenna?, deepest at 

 the ocellus, sparsely punctate like the rest of the face. Lateral foveola? large and 

 deeply excavated. Lateral facial angles fairly promineut Antennae depressed 



* i. e., a master of slaves. 



TRANS. AM. ENT. SOC, XXVII. OCTOBEK. 1900. 



