OKPHULELLA. 77 



carinae of the pronotum farther apart and distinctly arcuate 

 on the anterior lobe, less strongly divergent behind. 

 f 1 . Larger. ( ? : length 20-22 mm.) Variable in colour, 



but very often largely green. [Central America.] . ' . 21. costaricensis, sp. n. 



p. Smaller. ( ? : length 16-18 mm.) Usually green, more 



or less varied with testaceous, purplish or brown, and 



black. 



g l . Pronotum short, the lateral carinae gently arcuate, 



the median carina cut a little back of the middle. 



[Cordova, Mexico.] 19. sapoteca, Sauss. 



g 2 . Pronotum with the lateral carinas more decidedly 

 arcuate ; the median carina cut at the middle. 

 A 1 . Lateral foveolae of the vertex elongate-triangular, 

 moderately deeply impressed. Disc of the pro- 

 notum narrowest at the first transverse sulcus. 



[Mexico.] 17. tepaneca, Sauss. 



h 2 . Lateral foveolae of the vertex linear, rather faint. 

 Disc of the pronotum narrowest at the second 



transverse sulcus. [Central America.] .... 20. merictionalis, sp. n. 

 b*. Lateral carinas of the pronotum not arcuate, either straight 

 throughout or parallel on the anterior lobe and more or less 

 divergent on the posterior one. 

 c 1 . Antennae of the <J decidedly longer than the head and pronotum 

 together, and more than ordinarily heavy. 

 d l . Lateral carinas of the pronotum gently and evenly divergent 

 posteriorly. Eyes prominent, elongate. Face strongly 



oblique 23. prominula, sp. n. 



d 2 . Lateral carinae of the pronotum divergent on the posterior 

 lobe only. Eyes less prominent, subglobular. Pace only 



moderately oblique 25. robusta, sp. n. 



c*. Antennae of the <$ shorter, seldom even equalling the combined 

 length of the head and pronotum, not incrassate. 

 d 1 . Larger. ( ? : length 25 mm.) Antennae filiform, those of 

 the ? longer than the pronotum. [Cuba and Island of 



Pines.] [22. scudderi, Bol.] 



d 1 . Smaller. ( ? : length 20-21 mm.) Antennae very short, in 

 the ? not longer than the pronotum. [Mexico.] 

 e 1 . Fastigium of the vertex prominent and decidedly angulate, 

 as long as broad. 

 f 1 . Distal portion of the discoidal area of the tegmina of the 



? finely and irregularly veined; antennae subensiform . 15. tolteca, Sauss. 

 /*. Distal portion of the discoidal area of the tegmina of the 

 $ more regularly veined ; antennae with basal joints a 

 little depressed. [Orizaba.] 18. orizaba, McNeill. 



