AMERICAN HEMIPTERA. 23 



deeply and uniformly punctured, while in cinciipes tlie disk of the sixth segment 

 is almost smooth, the punctures heooming oiisolete toward the median line. The 

 genital characters of these species are quite distinct. In parvulus the male has 

 the punctured basal area longer, the apical sinus broader and more shallow, and 

 the outer apical angles rounded and hardly prominent. In cinciipes these angles 

 are strongly produced in ol)tuse but narrow recurved lobes that project distinctly 

 beyond the apex of the scutellum when viewed from above. In the female of 

 parvulus the inner plates and median plate nearly or quite attain the line of the 

 outer plates, while in cinciipes they are shorter, leaving an obvius median sinus 

 on the apical margin. Length about 5 mm. 



Described from a pair taken in Colorado, a male from Montreal, 

 Canada, and a female taken from Wood's Hole, Mass., and Prof. 

 Osborn has sent me a pair taken in Colorado and a male from 

 Donglas County, Kan. 



Oucozygia cluTicornis Stal. 



Mr. Otto Heidemann has very kindly given me a specimen of 

 this interesting species that was taken at Fortress Monroe, Va., 

 October 10, 1891. Stal's type came from Texas. 



Subfamily Cydnid^. 



These little brown ground-bugs are quite distinct both in appear- 

 ance and habits from our other Pentatomidai. I have at present 

 but a very inadequate representation of this group in my collection, 

 and these are but partially worked up, so for the present I will 

 merely list the species thus far reported from our territory. A very 

 complete monograph was published by kSignoret in the volumes of 

 the Annales de la Societe Entomologique de France ibr the years 

 1881 to 1884. An earlier paper on our North American forms was 

 published by Dr. Uhler in volume three of the Bulletin of the 

 United States Geological and Geographical Survey of the Terri- 

 tories, which contained a somewhat unsatisfactory synopsis of the 

 genera. This paper is, however, invaluable and contains most that 

 we know of our species. 



Cyrtoinenu!^ mirabilis Perty. 



Recorded from South Carolina, Georgia, Florida and South 

 America by Dr. Uhler ; Prof. Snow has taken it in New Mexico ; 

 and Mr. Henshaw has sent me an example from Texas. 



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



