AMERICAN HEMIFTERA. 43 



Morinidea sordidula Stal. 



Recorded from New Mexic(» and Texas within our territory. My 

 material is from Mexico. This species is pale testaceous punctured 

 with black, with the narrow apex of the scutellum, three points on 

 its base, two on the disk of the pronotum anteriorly, and the slender 

 outer margins of the pronotum and base of the elytra white and 

 calloused. 



iMoriiiidea tetra Walker. 



Prof. Wickham has very kindly sent me a specimen of this large 

 pale species J;aken at Del Rio, Texas, in June. It is larger than 

 the preceding species, has the white markings still more reduced, 

 and the connexivum maculated. The venter wants the median 

 vitta and the antennae are entirely black. It has not before been 

 recorded from north of Mexico. 



<Ebalu!ii pugiiax Fabr. 



This is a southern species that reaches its northern limits from 

 southern New York westward to Ohio and Iowa. In my collection 

 are specimens from New Jersey, Washington, D. C, North Caro- 

 lina, Georgia, ^lississippi, Kansas, and Colorado, and Uhler records 

 it from Texas, Arizona, and Florida. It also inhabits Cuba and 

 Mexico. This is Pentatoma augur Say. 



Genus EUSCHISTUS Dallas. 



Margin of the ahdonieii soniewliat calloused pale; connexivum marked with a 

 black line within ; pronotum quite convex behind ; apical ventral seg- 

 ment with two smooth point.s coiiiptiis. 



Margin of the abdomen not calloused, or distinctly pale; connexivum ugnally 

 maculated ; pronotum but slightly convex behind ; apical ventral seg- 

 ment without smooth points 1. 



1. Membrane normally distinctly dotted with fuscous; tergum in fully developed 



examples black 2. 



Membrane destitute of dots; tergum rarely fuscous or blac^k 12. 



2. Margin of the venter with a minute black point at each incisure 3. 



Margin of the venter immaculate, angles of the segments concolorous . . . -11. 



3. Body strongly convex, especially below; humeri forming short acute but 



abrupt spinas, distinctly inclined forward CrastSiiS. 



Body less convex, sometimes obviously depressed 4. 



4. Apex of the head strongly incised ; clieeks distinctly produced beyond the 



rounded apex of the tylus, subacute ; elytra as wide as the abdomen. 



fiNKilis. 



Cheeks very little if at all longer than the tylus; elytra narrower than the 



abdomen exposing the maculated connexivutn rt. 



TRANS. AM. ENT. SOC, XXX. FEBRUAKY, 1904. 



