HEMIPTERA— HETEROPTERA— LY<i.^^:n).^.. 395 



Length, 5""" ; iuitenua-, 1.75"""; l)midtli of hwul, .9:>""" ; base of tho- 

 rax, 2.15"""; abdomen, 2.75""". 



Florissant, Ont' sjiecinien. No. 2022. 



11. TRAPEZONOTUS Fieber. 



This genus, abundantly represented in Europe, ratlier feel)ly in Amer- 

 ica, where it is found in the United States, and at high elevations in Cen- 

 tral America, seems to have lived at Florissant, a couple of species, one of 

 them tolerably common being found there ; yet they certainly differ from 

 modern types in the brevity of the antennae and blimtness of the head, 

 and are considerably slenderer than any American species known U\ me. 

 They may be placed here at least provisionally. 



Tnhle of III c Kpcciei of Tmpezoiioliis. 



Smaller species, hardly exceeding three millimeters iu length ; thorax with no median sulcation ; costal 

 margi ii of corinm dark 1. T. exterminatus. 



Larger species, considerably exceeding four millimeters in length ; thorax with median snlcation : 

 costal margin of corinm light '2. T. uti/ninlin. 



1. Trapezonotus extkrminatus. 

 PI. 22, Fig. 9; PI. 23, Fig-s. 11, 22. 25. 



Head triangular, rounded, slightly broader than long, the angulate 

 front rounded; antennae slender, subequal, a little longer than head and 

 thorax together, the first joint barely surpassing the front of the head, the 

 second joint longest, the succeeding joints successively shorter. Thorax 

 with convex sides, the anterior about three-fourths the length of the poste- 

 rior border, the former slightly concave, the latter as slightly convex, the 

 surface faintl}' punctate, though this does not appear on all individuals 

 Heuielytra with the corinm reaching the middle of the abdomen, strong]}- 

 infuscated with pallid markings, consisting of a broad, pale su1)costal stripe 

 which does not reach the membranal suture, and a median triangular patch 

 seated on the same suture, besides which a pale, slender stripe follows the 

 sutura clavi. Abdomen full and rounded. 



Length of body, 3.1°™; breadth, 1.2"""; length of antenna;, 1.4'"'°. 



Florissant. Eight specimens, Nos. 5801, 6366, 6550, 7609, 9674, 

 11757, 12060, 12459. 



