1907.] NATUKAL SCIENCES OF PHILADELPHIA. 1S9 



This species varies somewhat in size, specimens distinctly larger and 

 smaller than the original measurements being in the series. The 

 dorsal section of the external pagina is strongly purplish in the majority 

 of specimens. 



Leiotettix sanguineus Hrunor. 



1901). Leiolettix sanguineus Bruner, Proc. U. S. Xat. Mus., XXX, p. GS7. 

 [Sapucay, Paraguay.] 



3 6^, 1 9 . January and March, 1905. 



The pale portions of the gena) and pronotum in one specimen are 

 more greenish than flavous. 



Leiotettix flavipes Bruner. 



19U(3. Leiotettix flavipes Bruner, Proc. U. S. Xat. Mus., XXX, p. 687. 

 [Sapucay, Paraguay.] 



5 d", 8 ? . February and :\larch, 1905. 



This beautiful species appears to be Cjuite uniform in coloration. 

 ^Leiotettix hastatus n. sp. 



Type: d^ ; Sapucay, Paraguay. February 3, 1905. (W. T. Foster.) 

 [Hebard Collection.] 



Closely allied to L. flavipes Bruner, but differing in the straight cerci, 

 reddish caudal tibiiP, the non-emarginate cephalic margin of the pro- 

 notum and the more pronounced angle of the caudal margin of the 

 same. 



Size medium; form as usual in the genus. Head with the occiput 

 hardly elevated above the level of the pronotal disk; vertex gently 

 declivent to the fastigium, interspace between the eyes about two- 

 thirds the width of one of the eyes; fastigium slightly broader than long, 

 slightly depressed within the margins but not excavate; frontal costa 

 rounded dorsad, rather broad, subec^ual in width, slightly constricted 

 ventrad of the ocellus, sulcate for a considerable distance ventrad of 

 the ocellus and around the dorsum of the same; eyes hardly prominent 

 when viewed dorsad, ovate in outline, slightly 

 flattened cephalad, in length slightly less than 

 half that of the infraocular sulcus; antennae 

 somewhat shorter than the caudal femora, slightly 

 flattened at the apex. Pronotum very slightly 

 depressed mesad, disk slightly narrowed mesad, 

 greatest width of the disk (caudal) contained Fig. 13. — Leiotettix 

 about once and a half in the length; cephalic ha.<:tatus n.sp. Lat- 

 ,. , , ,1-1 '^'"^1 view oi apex 



margm slightly arcuate, caudal margm obtuse- of male abdomen. 



angulate with the immediate angle slightly CX (3.) 

 flattened; median carina distinct but slight on 

 the prozona, more apparent but low on the metazona, principal sulcus 

 dividing the carinse decidedly caudad of the middle: lateral angles 



