MEXICAN ORTHOPTERA. 97 



trace of a crest, the median carina being only slightly visible anteriorly and pos- 

 teriorly. Anterior margin of the pronotum slightly produced centrally ; poste- 

 rior margin nearly rectangulate. Lateral carinse very slightly developed, on the 

 metazona the line dips from the shoulder angle and terminates a distance below 

 the usual point. Lateral lobes of the pronotum with the lower margins slightly 

 trimmed anterior, and slightly produced posteriorly. Tegmiua well developed, 

 greatly exceeding the hind femora. Hind femora moderately exceeding the 

 abdomen. Hind tibiae with seven spines on the external border. Cerci erect, 

 rather blunt ; subgenital plate acuminate, both moderately pilose. 



General color dark brownish, mottled with pale yellow, touched with pink on 

 the face and blackish on the head and pronotum ; under surface posteriorly yel- 

 low. Eyes brownish gamboge. Antennae purplish brown. Tegmina blotched 

 with blackish, posterior section of the apex membranous. Wings with the basal 

 section vermilion, the remainder infuscated with a membranous spot near the 

 apex; anterior border deep brown. Hind femora yellowish, with two blackish 

 bands, the distal extremity also being blackish. Hind tibiae with the proximal 

 half yellowish, with one blackish band, distal half pinkish. Tarsi yellow. 

 Measurements : 



Length of body 18 mm. 



Length of tegmina ....... 20 " 



Length of hind femora' 10.5" 



Length of antennae 10 " 



Trimerotropis iiioiiticola Saussure. 



1884, Trimerofropis monticola Saussure, Prodrom. Qildipod., p. 170. 



Three specimens ; one $ , two 9 , Eslava, D. F., 8000 feet, x. 



One specimen, a female, exhibits a much greater length of teg- 

 mina than the others. Compared with Saussure's measurements it 

 stands 28.5 mm., against 25, the other female in the collection 

 measuring 26.5 mm. 



Tseiiiopoda picticornis Stoll. 



1873. Txniopoda picticornis Stoll, Eecensio Orthopterorum, I, p. 51. 



Eight specimens; six $ , two 9 , Cuernavaca, Morelos, xi. 



Rhoinalea eolorata Serville. 



1839, Acridium coloratum Serville, Orthopteres, p. 674. 



Nine specimens ; five $ , four $ , Victoria, Tamaulipas, vii. 



Soliist04'erca cariuata Scudder. 



1899, Schistocerca corinata Scudder, Proc. Amer. Acad. Arts and Sci., xxxiv, 

 p. 449. 



One specimen; male, Tacubaya, D. F., xi.. 



Schistocerca pyrauiidata Scudder. 



1899, Schistocerca pyramiddtfi Scudder, Proc. Amer. Acad. Arts and Sci., xxxiv, 

 p. 454. 



TRANS. AM. KNT. SOC, XXVII. (13) OCTOBEK, 1900 



