locustid^;. 193 



with five stout spines on each side, those from the first to the fifth suc- 

 cessively increasing in size; apical circlet of six spines; tarsi slender; 

 fourth joint much longer than all the others. 



12. Stenopelmatus politus. 



Foem. Rufus ; mandibula nigra, punctata ; prothorax nigricans, mar- 

 gine antico rufo ; abdominis dorsum nigrum ; oviductus brevis, apice 

 nigricans ; ala anlica nigra. 

 Female. Red. Eyes testaceous. Mandibles black, punctured. Pro- 

 thorax blackish ; fore border red. Abdomen black above. Cerci and 

 oviduct blackish towards the tips; the latter less than one-fourth of the 

 length of the abdomen. Spines of the tibiae with black tips. Fore wings 

 black. Length of the body 16 lines. 



The fore wings of the specimen described are rather shorter than the 

 abdomen, and appear to be not fully developed. 



a. Orizaba. From M. Salle's collection. 



13. Stenopelmatus erythromelas. 



Fiem. Rufescente fulvus ; caput prothorace vix ladus, antice punctatum ; 

 mandibulce niyricantes ; palpi apice picei ; abdomen dorso nigricante, 

 segmentis venlralibus nigro marginatis ; oviductus brevis, apice nigri- 

 cans ; tibia quatuor anteriores trispinosa; tibia postica extus tri- 

 spinosa, intus quinquespinosa. 

 Female. Reddish tawny, smooth, shining, very stout. Head hardly 

 broader than the prothorax; fore part thickly punctured; mandibles 

 blackish. Eyes piceous, smaller than those of the preceding species. 

 Palpi with piceous tips. Prothorax like that of 8. politus in structure. 

 Abdomen blackish above; hind borders of the ventral segments black. 

 Oviduct like that of «S. politus. Fore tibiae with two spines on the outer 

 side and one on the inner side; first outer spine beyond the middle; 

 second near the tip ; inner spines much larger than the others; middle 

 tibiae also with three spines, but the first on the outer side is nearer the 

 tip; hind tibiae with three spines ou the outer side and with five on the 

 inner side; the first and fifth of the latter are much smaller than the 

 others. Length of the body 14 lines. 



This and S. politus may be one species. There are traces of wings. 

 a. Mexico. From Mr. Gleunie's collection. 



14. Stenopelmatus lycosoides. 



Mas. Rufescente fulvus ; caput antice punctatum, prothorace non ladus; 



oculi parvi ; palpi apice picei ; abdominis dorsum nigricans, rugu- 



losum ; cerci nigricantes, breves, graciles ; tibia antica trispinosa ; 



tibia intermedia quadrispinosa ; tibia postica extus quadrispinosa, 



intus quinquespinosa. 



Male. Reddish tawny, smooth, shining. Head short, not broader 



than the prothorax, with a band of four piceous spots on the fore part 



of the vertex; fore part thickly punctured. Eyes small, not prominent. 



Palpi with piceous tips. Prothorax in structure like that of S. politus. 



