Uhler.] 418 [April 17, 



Nos. 133 and 139 u., Harris' Collection, d*, ?. "Alabama, Mr. 

 Hentz." 



A single female of the typical form remains in the collection. It 

 is found also in New York, Illinois and Maryland. No. 133 is a large 

 female which has the third joint of the antennae brown, instead of 

 yellow ; but agreeing in other respects with the type. This latter is 

 from " Maine, April ; Randall." 



2. A. crenatus. 



Aradus crenatus Say, Hem. New Harm., 28, 1. 



No. 138, Harris' Collection, ?. "January and February, 1836; 

 Florence, Alabama, Mr. Hentz." 



This is our largest species. The specimen is of a somewhat paler 

 color than usual. 



3. A. rectus. 



Aradus rectus Say, Hemipt. New Harm., 29, 4. Aradus affinis 

 Kirby, Fauna Bor. Amer., 279, 2. 



No. 12, Harris' Collection. " Aradus muticollis Say, MSS., deter- 

 mined by himself. May 1-15, 1833 and 1835; April 22, 1829. May 

 20, 1829. Maine, Mr. Randall." 



This species closely resembles A. lugubris Fallen, of Europe, and 

 may prove to be only a local variety of that species. I have been 

 permitted to examine specimens from Mackenzie River region, Canada, 

 Newfoundland, Maine, Massachusetts, Maryland, California and Col- 

 orado. 



4. B. acutus. 



Aradus acutus Say, Hemipt. New Harm., 29, 2. Aradus america- 

 nus H.-Schf., Wanz. Ins., vm, 115, fig. 880. 



No. 18, Harris' Collection, c?, ?, ?. "January and February, 

 1836; Florence, Alaba., Prof. Hentz." A nymph from " H. H., 

 Aug., 1850." 



A third specimen with the same number belongs to A. similis Say. 

 One specimen loc. ? with printed number 84 is a large ? acutus. 



5. A. quadrilineatus. 



■ Aranus quadrilineatus Say, Journ. Acad. Philad., IV, 326. 



No. 18, Harris' Collection. " Aradus penultimus Say, MSS., deter- 

 mined by himself. Under rails, on the ground, July. May 10, 1835. 

 August 10, 1837, Cambridge. North Carolina, April and May; Prof. 

 Hentz." 



Three specimens, one male and two females, are in the collection. 

 They are quite darkly colored, but in other respects agree with the 



