62 ORTHOPTEBA. 



dark. The tegmina have the costal area green, the disc fuliginous, with the dorsal angle pale, followed 

 above by dusky. Abdomen longitudinally streaked with dark and light. Hind femora with the upper 

 half of the outer disc dark, the lower half light ; the upper and lower edges, except the carinas which are 

 more or less brownish, light ; the knees infuscated. Tibiae and tarsi more or less dusky. 

 Length of body, $ , 27 ; of pronotum 4-60, of tegmina 7, of hind femora 14 millim. 



Hab. Mexico, Sierra de San Miguelito (Dr. Palmer, in coll. Scudder). 



A single female. 



AMBLYTROPIDIA, Stal. 



Amblytropidia, Stal, Recens. Orthopt. i. p. 107 (1873). 



The insects which fall into this genus, as limited by Stal, nearly all belong to Middle 

 America, and, judging from the forms now before the writer, are quite numerous. 

 With but few exceptions, their prevailing colour is some shade of brown, incon- 

 spicuously varied with darker or lighter streaks or mottlings. Their habits are similar 

 to those of the members of the genera Orphula, Orphulella, &c, hence the various 

 species may be sought for in grassy localities along streams and at the edges of groves 

 or woodlands. Although not rare, none of the forms seem to be sufficiently abundant 

 to cause damage to vegetation. They may be recognized in part by the following 

 analytical table : — 



Table for separating the Species of Amblytropidia. 



A 1 . Median carina of vertex quite prominent. Last transverse sulcus 

 of the pronotum situated plainly behind the middle. 

 b\ Robust, for the most part pale-coloured. Tegmina of the 

 female not surpassing the tip of the abdomen, the latter con- 

 colorous above. 

 c l . Antennae of the female (those of the male always more elon- 

 gate) a trifle longer than the head and pronotum united. 

 Tegmina provided with fuscous spots. 



d\ Smaller. [Brazil, Panama ?] [1. ferruginosa, Stal.] 



d 2 . Larger. Hind tibiae with 13 spines in the outer row. 



[Vera Paz and ? E. Mexico.] 2. magna, sp. n. 



c\ Antennae of the female considerably shorter than the head 

 and pronotum united. Tegmina variable in colour. 

 d\ Tegmina pale testaceous, without fuscous spots or longi- 

 tudinal pale stripes. Knees of the male at least dark- 

 coloured. [Argentina.] [3. australis, Bruner.l 



d 2 . Tegmina mottled, or with both fuscous spots and longi- 

 tudinal pale stripes, often with much green. [Brazil, 



Paraguay.] [4. vittata, (xiglio-Tos.J 



b\ More slender, rather dark-coloured. Tegmina of the female 

 surpassing the tip of the abdomen. Abdomen of the male, 

 at least, bright ferruginous or orange. 



