323 



8. A. inornatiis. 'Sew sp. 



Dull fuscous; outline similar to A. acutiis, Say. Differs from that 

 species iu beiug' destitute of ocbreous spots ; the head and antenuse agree 

 with it, except in the absence of the two rounded prominences of the cra- 

 nium, which are in this replaced by linear protuberances ; the postero- 

 lateral margins of the pronotum narrowed obliquely posteriorly; the 

 antero-lateral margins are arcuated, and armed with three or four large 

 teeth, and with numerous irregular minute teeth. Rostrum barely reach- 

 ing beyond the incisure between the pro- and meso-sternum. 



Length, 9 to 10 millimeters. Width of pronotum, 2f to 3i millimeters. 



Inhabits Nebraska, British Columbia, Wisconsin, Illinois, Pennsylva- 

 nia ; and in Maryland quite rare. 



In one female, the incisures of the connexivum were a little cinereous, 

 and the disks of the segments showed a faint cinereous spot. 



9. A. fuscomaculatus. 



Aradus fascomaculatus, Stal, Eugenies Kesa, 260, No. 210. 



Inhabits California, near San Francisco. 



This species seems to be similar to A. ornatus, Say, Only a few frag- 

 ments of what I believe to belong to it have thus far been available to 

 me for examination, and I desire to call particular attention to it, that 

 it may not continue to be overlooked by western entomologists. 



At least five other species of the genus Aradus, from California, have 

 been examined by me; but all the specimens were too imperfect for accu- 

 rate description. 



Brachyrhynchus, Lap. 



1. B. granulatus. 



Aradus granulatus, Say, Heteropt. New Harmony, 30, No. 7 ; Complete Writings, 



i, p. 353. 

 Dysodius j^arvulus, H.-Schf., Wanz. Ins. ix, 139, fig. 956. 



Inhabits Texas, Cuba, Florida, Maryland, and Missouri. 



2. B. lobatus. 



Aradus lobatus, Say, Heteropt. New Harmony, 30, No. 8 ; Complete Writings, i, 354. 



Inhabits Texas, Illinois, Michigan, Canada, Pennsylvania, and one 

 specimen from Maryland. 



3. B. moestus. 



Mezira moesta, Stal, Hemipt. Mex. Stettin. Enb. Zeit. xxiii, 438. 



Inhabits California, Arizona, and Mexico. 



Perhaps this will prove to be the same as B. americanus, Spinola, from 

 Chili. The differences between them are only such as occur in varieties 

 of other species. 



4. B. simplex. New sp. 



Dark brunneous ; minutely and densely granulated. Head a little 

 widened at tip; the lateral lobes a little longer than the tylus; the lat- 

 eral edges a little serrate-granulate, and longitudinally grooved ; the 

 tylus cylindrically raised above the plane of the cheeks, tinged with 

 rufous ; processes of the antennal base short, acute at tip, divaricating ; 

 antennae short, robusr, the third joint a very little longer than the sec- 



