1905.] NATURAL SCIENCES OF PHILADELPHIA. 413 



the tegmina, becoming more ochraceous on the pronotum and head. 

 Head with the mandibles and a transverse line on the clypeus shining 

 black in the female, the base of the mandibles suffused with ochraceous 

 in the male; antennae orpiment yellow, the two basal joints shining 

 black; eyes hazel. Tegmina with an irregularly distributed series of 

 seal brown spots of varying size; apex narrowly and rather obscurely 

 margined with the same color. Wings geranium red, the margins, 

 except the proximal portion of the radial margin, broadly suffused with 

 black, the dilated ulnar and axillary regions also colored as usual in the 

 genus. Abdomen blackish-brown. Limbs dull ochraceous and black, 

 the two distributed as in other species of genus. 



Measurements. 



Ijength of body, 35.5 mm. 53 mm. 



Length of pronotum, 14.5 " 19 " 



Greatest width of pronotum, 7 " 10 '' 



Length of tegmen, 33 " 36 " 



Greatest width of tegmen, 10 " 11 " 



Greatest width of wing, 18.2 " 17.5 '' 



Length of caudal femur, 23.5 '^ 25.5 " 



Two specimens have been examined in addition to the types, both 

 of which are males, one topotypic of the same sex and in the Hebard 

 collection, the other topotypic with the female and in the United States 

 National Museum. These specimens are identical with the male type 

 in all essential respects, some slight variation in the distribution of 

 spots on the tegmina being all that is noticed. The San Jose male has 

 the antennae but very slightly damaged, and from this we see that the 

 terminal joints are blackish. 



The genus Tceniopoda as represented by the material in hand falls 

 into two groups. All the known species are at hand except T. superba 

 (Stal) and gutterosa Bolivar, which appear to be quite distinct from the 

 forms studied. The eighty-nine specimens examined can be divided 

 usually into two groups, as separated by Bolivar in his key of the genus.^ 

 One type represented by pidicornis (Walker) and hurmeisteri Bolivar 

 is characterized by the rather low and rather indistinctly biarcuate 

 median crest of the pronotum. The other type represented by cen- 

 turio (Drury), auricornis (Walker), pulchella Bolivar and varipennis 

 Rehn is characterized by the elevated, strongly biarcuate median crest 

 of the pronotum, while T. tamaulipensis Rehn is about intermediate 

 between the two types. 



3 Bol. Soc. Espafi. Hist. Nat., I, p. 265, 1901. 



