OF WASHINGTON. 81 



red markings on the sides. This species is very variable and 

 is common throughout the United States and in Canada. 



Thy ant a rugulosa Say. 



Five specimens, all females. A western species ; the specimens 

 vary sometimes in the length of the third and second antennal 

 joints. 



Alydus conspersus Montandon. 



One specimen, a female. Inhabits the western and northern 

 States, and can be distinguished from other species of the genus 

 by the round, dark spots scattered over the thorax, elytra and 

 membrane. 

 Alydus phito Uhler. 



One specimen, a female ; often confounded with the black 

 forms of Alydus eurinus Say, but it is deep black throughout, 

 more robust and very hairy. A more northwestern species, also 

 found in Canada. 

 Stachyocnemus apicalis Dallas. 



One specimen. This species, although considered rare, has a 

 wide geographical distribution. It was originally described from 

 Florida, has also been found in the northwestern States, and has 

 .lately been taken by the writer in the District of Columbia. 

 Dorachosa illuminatus Distant. 



One example of the variety D. umbrosus Dist., with the legs 

 entirely black. This species has often been confused with a 

 European species, Microtoma carbonaria Rossi, but Dorachosa 

 is smaller and the thorax differently shaped. It was originally 

 described from Mexico. The species is widely distributed. It 

 occurs also in the eastern States, and has been taken in the District 

 of Columbia underneath stones. 

 Harmostes reflexulus Stal. 



One specimen, a male, of the pale variety that occurs mostly 

 in the western States. 

 Kmblethis arenarius Linnaeus. 



Three specimens. A European species, probably introduced ; 

 found all over the United States and in Canada. 

 Trapezonotus {Sphragisticus} nebulosus Fieber. 



Three specimens. It is also a European species, quite com 

 mon and widely distributed. 

 Nysius calif ornicus Stal. 



One example. Not uncommon. It has also been occasionally 

 found in the eastern States. 

 Nysius angustatus Uhler. 



Numerous specimens. This is a very common bug, and has 

 been found in nearly all the States and in Canada. 



