HEM 11- 1 ERA BETEROP1 BRA PENT ATOMID2B, 453 



Subfamily PKXTATOMII )A Stal. 



This group is one of the most prevalent of the subfamilies of Heterop- 

 in the European Tertiaries, twenty-six species being found tl; 

 which have been referred to six genera: -Elia, one species, Eurvd-uia, 

 our, Eusarcoris two, and Ilalys two, all from Oeiiingen, besides Penta- 

 tonui, which has been accredited to Radoboj, Aix, Salzhausen, and nnib<-r, 

 l)iit especially to Oeiiingen, where nine species have been recorded. 

 Hi 'sides these a species of Pentatoma has been described from Greenland. 



In our Western Tertiaries remarkably few examples of this group have 

 been recovered, considering its abundance in the Old World, but nearly 

 I-MTV specimen is generically distinct from every other, for we have but 

 thirteen species, and in only two instances have these more than a single 

 -|n-i'iinen each, yet so different are they that they must be separated into 

 ten genera ; only one of these, imperfectly known by a very remarkable 

 head, can be referred to an existing genus, for in all the scutellum is 

 remarkably triangular and equiangular and destitute of the apical exten- 

 sion common to living types. In this, as already stated, some of the Euro- 

 pean species appear to agree with them; it should, however, be noted that 

 this agreement appears far more marked in Heer's direct illustrations of tin- 

 foil.s than in his restorations of the same species. Our species all coim- 

 from Florissant, with a single exception. 



Tulilc of f/ir genera of Vcntatomida. 



IMII ni lii-ail lens than two ami a liul f t linos us lung as lun.nl. 

 \l" \ of HOUtelllllil n- H li:n_; dinliiietly Irss ilian hall-way to the lip of tho abdomen. 



Head in front of eyes quadrate-, the, tyliini and jugu of similar length 1. Titrotchi'tu*. 



Hi-ad in front ol'eyes tapering, tin.- lyluiu sinpa.ssing the juga 'J. Thnttvtcliutll*. 



>; in^ lialf-wuy to the lip of tbo ubdouien. 



'> I IIP -i- tinii's as broad - long. 



jularly ovuto Ibrongbout :t. Pute*ck 



I'- !. \vnli |MI.I!|I'| or ni-iirly panillel HII)CIN. 



II' ' in* lliorax and more Mi m half its wiiltb..4. Gi"rAi*('i. 

 II- .'.!. ' thi middli! of ilii> tborax and liglill.v loi tbiiu b.ilf nit 

 



LI llllrrni . liroail US long. 



i lie width of the abduim-n. 



lillllilU'Dt. 



in Hum nl'luti-rul proiniDODcea concave ' 



mil ul' lateral priiuiiin-ncf.1 convvx 7. I'-Hiutomitn. 



>l' tlinrax not prominent " 77ri cAu(<. 



l-lin- Allllllll- '.I. 1 'lt. 



Intraocular part of head I as long us Immd ..I 'ui/u. 



