184 IOWA ACADEMY OF SCIENCES. 



a crown of short spines on the tip of the tibia, and the first 

 two tarsal segments. 



Genitalia. — Ultimate ventral segment of female nearly as long 

 as width at base, elevated in the middle; posterior margin trun- 

 cate, with a broad median notch; py gofers narrow, moderately 

 exceeded by the oviduct; the margins and tip studded with 

 short, stout, orange spines; length, 4.50 mm.; width on center 

 of casta, nearly 2 mm. 



LarvcB. — Half-grown specimens taken the middle of Septem- 

 ber already possessed the characteristic head and pronotum of 

 the adult. The antennae were longer than the body, basal joints 

 very large, and arising from under a well marked ledge; color, 

 bright green, with six black spots, as follows: A pair of round 

 ones occupying the anterior half of the eyes, a pair on base, 

 and another on posterior margin of the wing pads, directly 

 behind and in line with the eyes, anterior pair partly concealed 

 by the pronotum. Spines on the genitalia, and legs stronger 

 than in the adult. 



This species was taken in upland pastures in which Andro- 

 pogon sco2)arias, Bouteloa hirsuta and curtipendula predominated. 

 Adults were taken the latter half of August; half- grown larvae 

 were found September 13th and 17th. 



This is a very peculiar species, and suggests a relationship 

 between Euacanthtts and Xestocephalus, two of the lower genera, 

 placed respectively in the sub-families Jassince and Tettigonince. 



XESTOCEPHAI.US PULICARIUS VAN D. 

 BuU. Buffalo Soc. Nat.. Sci. vol. IV, 1894. 



This is a narrow, convexly conical headed little species with 

 broad maculate elytra and a brown vertex marked much as in 

 Tettigonia hieroglyphica. Length about 3 mm. 



This species might easily be mistaken for a Deltocephalus but 

 for the ocelli which are situated nearly half way from the eyes 

 to tip of vertex. It was found rather commonly on blue grass 

 in shaded locations through July and August. 



Very generally distributed north, and specimens have been 

 received from Mississippi (Weed), 



XESTOCEPHALUS CORONATUS N. SP. 

 (PI. xix, Fig. 2.) 



Form and size of pulicarius nearly, but with head and pro- 

 notum shining black, with white markings; length, female, 3 

 mm. ; male, hardly 2.50 mm. 



