54 Journal New York Entomological Society. tVoi. xxvi. 



Acompus rufipes Wolff. 



This is another palsearctic species which must be added to our 

 list of North American species as in the U. S. N. M. ; from the col- 

 lection of P. R. Uhler are two specimens, one labelled " Victoria " 

 [Vancouver Is.] and the other " N. R. R." which probably refers to 

 Northern Pacific or Canadian Pacific of Brit. Col. This species 

 is likely to be confused with Stygiiocoris pcdcstris, which it resembles 

 in general appearance. The eyes are however more protruding, the 

 lateral edge of the pronotum is more evidently carinate or lightly ex- 

 panded and the whole surface of both lobes of this part and the head 

 closely punctate and not at all pilose. 



Genus Rhyparochromus Curt. 



This genus as diagnosed by various European authors and typified 

 by R. chiragra Fab. does not appear to occur upon this continent. 

 Yet owing to the diverse interpretation put upon the diagnostic char- 

 acters of Curtis, this genus has been a sort of dumping ground for 

 numerous species of American hemiptera at one time or another. 

 It becomes necessary then to break up this assemblage of species 

 which has been placed under this genus and assign them to their 

 true affinities. Rhyparochronuis soldaliciiis Uhl. (not soldalicus, Van 

 Duzee) and angustatus Van D. will have to be transferred to the 

 Tribe Beosini and affiliated with Trapezonotiis rufipes Stal to form 

 a new genus. This gives an assemblage of species falling in a natural 

 group closely related to but structurally distinct from the true Trqpe- 

 zonotus which must be retained to include such forms as T. arenarhis 

 Linn, and caUginosus Dist. For this new genus I have adopted the 

 name Malc::onotus of which Malczonotus ( Trapcaonoliis) rufipes 

 Stal must be the type. 



Malezonotus new genus. 

 Not pilose. Head transverse, across eyes as wide as anterior 

 margin of pronotum; antenniferous tubercles, seen from the side, 

 strongly oblique. First segment of antenna short, stout, barely ex- 

 ceeding tylus. First segment of rostrum reaching base of head, 

 second segment distinctly longer than third. Pronotum transverse, 

 dull black, unicolorous except most often the lateral explanate margins 

 and sometimes the posterior margin, scarcely or very indistinctly 



