CERAMBYCID^E 327 



I can discover little or no difference between Entomosterna and 

 Ischnocnemis, except the single character selected above to dis- 

 tinguish them; this will probably serve however, as the presence, 

 absence or disposition of the ivory vittae of the elytra is of greater 

 importance generically than has apparently been admitted. Cy- 

 phosterna Chev., is another Mexican genus closely allied to Ischnoc- 

 nemis, but having the prothorax transverse and finely tuberculate 

 at each side; it also has two ivory vittse on each elytron. 



Parabatyle (n. gen.) seems to be necessary for the type cited above. 

 Bates thought it might go in Batyle or else, because of the longer 

 antennae, be made the type of a distinct genus; I have adopted 

 the latter suggestion. 



Batyle Thorns. 



This genus was placed very far from Ischnocnemis in the arrange- 

 ment of Lacordaire, but the position assigned it in this neighborhood 

 by LeConte, Bates and others seems to be far more rational; our 

 species as hitherto considered form two genera, defined above from 

 the form of the scutellum, scheme of ornamentation, sculpture and 

 vestiture. The species of Batyle, as here limited, may be known as 

 follows ; the coloration black with the prothorax bright red through- 

 out is similar in all : 



Elytral punctures becoming widely separated and much coarser basally. . 2 

 Elytral punctures dense throughout, only very little larger basally; body 



stouter 4 



2 Prothorax widest near the base, the sides rapidly rounding to the 

 latter, gradually feebly converging and feebly, subevenly arcuate 

 thence to the apex, which is much narrower than the base; surface 

 strongly polished, the under surface deep black throughout, only 

 the inflexed sides of the pronotum red; antennse (cf) slender, about 

 as long as the body, the third joint a third longer than the fourth, 

 which is barely visibly shorter than the fifth, the last distinctly 

 longer than the tenth, with a short and feeble prolongation; 

 prothorax but slightly wider than long, with the usual long erect 

 bristling hairs, the punctures strong and only moderately sparse; 

 scutellum transversely parabolic; elytra two and one-half times as 

 long as wide, a little wider than the prothorax, gradually subpromi- 

 nent at the sides basally, the punctures everywhere strong and rather 

 well separated, decidedly coarse and distant basally, the surface 

 transversely rugulose near the apex; hind thighs extending dis- 

 tinctly behind the elytra, the legs slender. Length (cf) 8.9 mm.; 

 width 2.4 mm. New Mexico (Jemez Springs), Woodgate. 



seclusa n. sp. 



