AMERICAN HEMIPTERA. 55 



with a blunt apex, the edges of tlie pronotum are sharp and con 

 cavely arcuated, with the humeral angles prominent, rounded, or 

 scarcely angled, and crossed on its anterior disk by a slender, 

 slightly elevated ridge, reaching to the middle of the callosities on 

 either side. The whole upper surface, but especially the pronotum 

 and elytra, are coarsely and rugosely punctured, giving the insect 

 at times a coagulated or mottled appearance. The terguni is black, 

 with the apex beyond the tip of the scutellum and the sides green. 

 In pale examples the connexivum is obscurely marked with brown 

 at the incisures where there is also a black dot on the extreme edge, 

 and sometimes there is an indication of a brown point on the base 

 of the meml)rane on either side of the tip of the scutellum. 



I have examined a long series of this species taken at Grand 

 Junction, Colorado, and have found it not uncommon at Pueblo, 

 Rifle, and at other localities in that State and Utah where the 

 prairies are covered with a sparse growth of Atraplax and similar 

 vegetation. I have also received a specimen from Prof. AVickham, 

 taken at Havre, Montana. Other specimens formerly received by 

 me from correspondents and determined as rugidosa may belong to 

 the next specjes which possibly is but a pale variety of this. I 

 venture, however, to describe it as new as it is sufficiently distinct to 

 require a varietal name in any case. 



Tliyaiita piinctiveiiti'is n. sp. 



Proportionately longer and more depressed than rugulosa. Sides of the pro- 

 notum distin(!tly concavely arcuated. Humeral angles prominent, obtuse. Head 

 long, sides distinctly sinuated before the eyes, then subparallel to the broad 

 rounded tip. Apex of the scutellum narrow, subacute. Membrane surpassing 

 the tip of the abdomen, whitish, dotted with brown toward the base. Connexi- 

 vum maculated at the incisures. Venter coarsely punctured with greenish brown 

 and marked with a transverse row of about eight or ten black points close to the 

 hind margin of each segment. Mesosternum with a black vitta on each side and 

 there may be a curved black streak ou the propleura behind the eye. Color ))ale 

 or whitish green, above coarsely punctate and irregularly mottled with dark 

 green, intermixed, especially on the pronotum and elytra, with some pale cal- 

 loused dots or rugae. The legs are punctured with darker and the femora have 

 an obscure band before their apex ; tarsi and usually the apex of the tibiae black- 

 ish. Antennae pale with the apical joint and sometimes the fourth more or less 

 obscured. Length to the tip of the membrane 6 to 7 mm., width across the 

 humeri 3h to 4 mm. 



This species is closely allied to rugulosa. It may best be distin- 

 guished by its more elongated and depressed form, the broad niacu- 



TEANS. AM. ENT. SOC. XXX. FEBRUARY. 1904. 



