1878.] 369 [Uhler. . 



fig. 6. Tetyra cinctipes Say, Amer. Ent., ill, pi. 43, fig. 4. Pod- 

 ops dubius Germ., Zeitsch., i, 64, 2. H.-Schf., Wanz. Ins., v. 44, 

 tab. 158, fig. 495. 



No. 55, Harris' Collection. " April 20, 1822, April 15, 1829. 

 May 15, 1829." Determined as T. cinctipes by Mr. Say. 



There is much variation in the size of the specimens. The species 

 is common in Massachusetts, abundant in Illinois, and not rare in 

 Louisiana. I have occasionally found specimens near Baltimore, be- 

 neath stones ; sometimes as late as November. 



ASOPINA. 



Stiretrus Lap. 

 St. fimbriatus. 



Tetyra fimbriata Say, Amer. Ent., in, tab. 43, fig. 1. Asopus 

 variegatus H.-Schf., Wanz. Ins., iv, 90, tab. 137, fig. 427. Stiretrus 

 fimbriatus Germar, Zeitsch., I, 16, 3. 



No. 30, Harris' Collection. " Flowers of Asclepias pulchra, 

 August 10, 1825, July 25,1831." Determined by Mr. Say as his 

 Tetyra alternata, but in his MS. list Dr. Harris corrects the error. 



The specimens vary very much in size and colors. The two indi- 

 viduals in this collection are of the usual type, with yellow heme- 

 lytra and the black spot near the interior angle of the corium. A 

 variety from Mexico is the St. personatus Germar ; the same variety 

 occurs also in Pennsylvania. In Maryland it frequents Rhus glabra 

 and sucks the blood of the larva of a species of Galeruca which 

 feeds on that plant. 



Perillus Stal. 

 1. P. exaptus. 



Pentatoma exapta Say, Journ. Acad. Phila., iv, 331, 3. Penia- 

 toma variegata Kirby, N. Zool., 276, 384. Zicrona marglnella Dal- 

 las, Brit. Mus. Cat. Hem., i, 109, 5. • 



No. 69, Harris' Collection. " July 15, 1828." Determined as 

 P. exapta by Mr. Say. 



Specimens have been examined, in which the head was entirely 

 black, or with the front or outer margins white. The pronotum is 

 sometimes ivory-white, instead of red, and the basal black may be 

 reduced, or even entirely wanting. 



One or other of the forms of this species have been found across 



