yo.m*. liEriswx OF the MELAXorLi—sc r ddei:. 27 



6. BARYTETTIX, new genus. 

 i/iafJir, heavy; r*rr/|, ;ira8Hhoj»per.) 



liody heavy, moderately coiiipressed, thinly ]>ihKse. Head large, 

 moderately i)roiniiient, the vertex gently convex, not raised above the 

 level <»tthe ])ronotuni, the tastigiuni descending with moderate rapidity 

 and the face retreating slightly; eyes very large, moderately i)romi- 

 nent, about eijually so in the two sexes, broadly ovate in the male, 

 elliptical in the female, mucli longer than the infraocular i)ortion of the 

 genae; interspace between the eyes narrow, especially in the nnile, the 

 f;«stigiiun snlcate throughout, widening considerably beyond, the 

 frontal costa relatively broad, consi<lerably broader than the interspace 

 between the eyes; antennae not very slen<ler, long, half as long as the 

 body in tlie male. Pronotum sh(»rt, subecjual, widening slightly at the 

 luetazona, the front margin truncate and laterally i)licate, the hind 

 margin truncate and emarginate, its dorsum gently convex, passing 

 insensibly into the vertical lateral lobes, a feeble percurrent median 

 carina; prozona transverse, especially in the fenuile, sparsely punctate, 

 slightly less than twice as long as the densely i)unctate metazona, 

 rossed in the middle by a distiiu;t transverse sulcus, followed at less 

 rhau half the distance to the metazona by a similar angulato-arcuate 

 lulcus. Prosternal spine bluntly conical, erect; interspace between 

 esosternal lobes twice as long as broad in the male, subquadrate and 

 early as broad as the lobes in the female, the metasternal lobes rather 

 distant in the male, approximate in the female. Tegmina elliptical, 

 about as long as the prozona. Fore and middle feiuora very tumid in 

 the male; hind femora shorl- and moderately stout; hind tibiae with 

 nine to ten spines in the outer series. Extremity of the male abdomen 

 Biibclavate, but with the sub^.renital plate so x)roduced posteriorly as to 

 form an exceedingly coarse and blunt conical tubercle, the lateral mar 

 gins straight from the very base, the apical margin removed from the 

 tip of the supraanal plate by considerably more than half the length of 

 the latter; cerci large, laminate, arcuate, the angulate tip directed 

 downward; furcula composed of a pair of minute lobes. 

 li. crassuH may be taken as the type of the genus. 

 Two species are known, both from Lower California. 



ANALYTICAL KEY TO THE SPECIES OF KAKYTETTIX. 



Tegtaiua uiiicolorons ; hin<l margiu of pronotum ilistinctly emarginate; frontal 



e08t:i snlcate throughout (male) 1. crasstis (\k 28). 



Tegmina longitudinally bicolored; hind margin of jironotum very feelly emargi- 

 nate; frontal costa x>lane, or depressed (mly just below the ocellus (female). 



^^, . ^^.^- 2. jjeHiH«M?a<' (p. 28). 



