BEMIPTERA HBTEROPI I.I; A PKM AT< .M11>.K. 



iiuii-inii angles "I tin- thorax w-ll rnnuitril. llic sides considerably oblique. o that the apical is 



iiuirli shorter than th* bo i oi'tln- thorax. 



hi-oaili-i than long. 



Thorax leas than twice as broad as long :t. T. pfrennaliu. 



I'lii Tax more than twice as broad a.s long 4. T. lim*u. 



1 "ii HIT than broad o. T. ma<-r. 



\. THLJBOMENUS PETREUS. 



Head moderately large, about a third as broad as. (lie thorax. Tin. 

 rax rather more than twice as broad as long-, the length of the apical not 

 ureatly less than the liasal margin, since the sides do not greatly taper ami 

 the outer anterior angles are prominent: apical margin with a very gentle 

 and very broad emargination ; the surface even and verv tinely punctate. 

 Si-iitclluni moderate, sharply and regularly triangular, about two-thirds as 

 broad as the thorax, broader than long, extending much less than half-way 

 to the tip of the abdomen. Hemelytra with the corium hardly reaching the 

 middle of the apical half of the abdomen, heavily punctate in serial rows. 

 Tibia- strongly but not very densely spinecl. Abdomen verv full and 

 rounded, fullv as broad as long. Color black, the corium of heinelvtra 

 \vry dark castaneous, the membrane infumated. 



Length, 4""" ; breadth, 2.25 mni . 



Florissant. Two specimens, Nos. 5f)f>7, 6613. 



2. THLIBOMENCS PARVUS. 

 Pi. H, I'ig. i'3. 



Head small, hardly more than a fourth as wide as the large thorax. 

 The latter scarcely twice as broad as long, with nearly straight, scarcely 



oblique sides and prominent outer anterior angles, so that the thorax tapi T- 

 I nit little, the length lit' the apical In -ing hut little less than that of the ba-al 

 margin. There i- -,\ -li^lit ami -~lmrt rounded emargination on the anterior 

 border, and the Mirlare is even and very shallowly punctate. Scutelhim 

 -imilarlx punctate. \i-r\ -.Imrt. not m-arlv reaching half-way to the tip of 

 llie abdomen, and hard I \ nmre than three-fifths as liroad a- the thorax 

 I leinelv tra, \\jth ihe curium. ea^il\ reaching the penultimate abdominal 

 segment, iin.ie ci.ar>el\ |iniictate. A bdouieii ver\ liroad and rounded, not 

 iie.irl\ so li'ii"/ as lirii;nl i (' ;i unit',, rm. irrisei >n> color. The parts in front 



\ i 'I XIII 



