138 



apex; hind tihisc ycllowish-ljrown, reddish toward the tip, with a very nnr- 

 row, generally faint, aunulation of dark-brown at the base ; spines tipped 

 with black. 



Dimensions. — 9 Length, 0.9 to 1 inch ; elytra, 0.75 inch ; hind femora, 

 55 inch ; hind tibiae, 0.50 inch, s Length, 0.65 to 0.70 inch. 



Maine (Smith, Packard); Massachusetts, Vermont, Connecticut (Scudder). 



TM®FIE>©Ii©FIItr(^, laov. gen. 

 Medium size, slender. Head short, depth about twice the length; 

 width about equal the length, sides parallel ; front straight, nearly vertical ; 

 occiput rounded; eyes eUiptical ; antennae robust, passing the thorax, about 

 22-jointed. Pronotum compressed, slightly converging in front; the dor- 

 sum elevated into a strong arcuate crest, equaling one-third the entire depth 

 of the pronotum; the front advanced in an angle upon the occiput, the pos- 

 terior extremity extending in an acute angle upon the base of the elytra; 

 no lateral carinse ; no transverse sutures crossing the crest ; the posterior 

 lateral margins regularly rounded inwardly fiom the lower angle to the apex. 

 Elytra and wings ample, rather narrow. Abdomen slender; apex of the 

 male sub-conical, with a minute, rounded notch at the tip. Legs long and 

 slender; posterior femora slender, but slightly enlarged at the base; poste- 

 rior tibiae spined almost their entire length ; first joint of the posterior tarsi 

 elongate, nearly twice the length of the ultimate joint, Prosternum smooth, 

 not spined. 



Syn., Gryllus formosus, Say, Am. Eutoin., Lc Conte'.s ed., vol. I, 78, PI. xxxiv, 

 Fig. 2. 



Occiput elevated, convex ; vertex much deflexed, margins elevated and 

 continuous with the sides of the frontal costa; no lateral foveolse. Face 

 straight ; frontal costa deeply sulcate ; sides parallel ; lateral carinae distinct, 

 rather prominent. Antennae longer than the head and pronotum, sub- 

 cylindrical. Sides of the pronotum marked with irregular impressed lines ; 

 sides of the crest minutely tuberculate; the posterior half of the top den- 

 ticulate ; anterior and posterior margins acute-angled. Elytra and wings 

 extend about one-fourth their length beyond the abdomen. 



Color. — Pale-green. Antennae yellowish. Head ashy-yellow; the lower 

 sides of the pronotum pale-green or cinereous; the crest green, with two 



