HANCOCK 91 



1. Individuals with white banner spot on disc of pronotum. Body gray. Scarcely per- 

 ceptible traces of black spots, two behind and two in front of the white pronotal marking on 

 the disc. 



2. There were some otherwise gray, with the exception of the outer half, or third, of the 

 posterior femora yellow, the pronotum having faint dark spots behind the disc, the pronotal 

 process yellow. 



3. Rarely one with body grayish and at the middle of the outer side of the posterior 

 femora with a longitudinal line of white not extending so far as the knee. 



4. Rarely one with body blackish, above clearly speckled with white; the femora also 

 marked above in the same way. 



5. Similar to the above e.xcepting on each side the lower margin of the pronotal lobes 

 edged with yellow. (One specimen in 100.) 



6. Body gray with four black spots, two in front almost obsolete and two behind the 

 dorsal disc, conspicuous, triangular in form. (Common.) 



7. Body similar to the preceding except that there are no black spots in front of the 

 disc, and having a white spot (sometimes raised into a little eminence) scarcely in front of 

 the black spots, posteriorly on the disc of the pronotum. 



g In a damp woods near Diamond Lake, Cassopolis, Michigan, where the fallen trees 

 had rotted away, leaving the richest of black muck, I found a number of Tettix. all adult. 

 There were long and short-winged forms of Tettix obscurus and gil'bosus.—]vinti 9, 1900. 



TETTIX BLATCHLEYI, SP. N. 



Allieci to gibhosiis; body rugose-granulose or subtubercu- 

 lose. Vertex nearly twice the width of one of the eyes, h'ghtly 

 depressed, median carina feebly developed anteriorly, little 

 projecting, on either side little longitudinally fossulate, the 

 front border slightly convex or subtruncate, barely advanced 

 beyond or about as far as the eyes. Frontal costa in profile 

 distinctly advanced beyond the eyes, strongly sinuate, oppo- 

 site the eyes angularly excavate, between the antenn.'e dis- 

 tinctly protuberant, viewed in front rather narrowly sulcate, 

 subparallel or hardly diverging. Antennse slender. Eyes in 

 dorsal view elyjitic, the breadth contained one and two-thirds 

 in the length. Pronotum anteriorly truncate, posteriorly subu- 

 late, passing the posterior femora; dorsum rugose, before the 

 shoulders strongly constricted, behind the shoulders distinctly 

 compresso-narrowed, humeral angles distinct, laterally little 

 produced, between the shoulders moderately broad, depressed, 

 posteriorly depressed; median carina indistinct, barely ele- 

 vated, in front of the shoulders lightly gibbose, posteriorly 

 little interrupted rugose; lateral carina before the shoulders 

 compressed, behind the shoulders sinuate-compressed, posteri- 

 orly on the process distinct; scapular area narrowed anteriorly, 

 distinctly higher posteriori}^; the posterior elytral sinus of 

 lateral lobes moderately deep, the inferior sinus deeply angu- 



