1878.] 419 [tJhler. 



types. The manuscript name quoted above is an old one which Mr. 

 Say set aside when he published the description of the species. 



It occurs in Canada West, in many parts of New England, and 

 more rarely in Pennsylvania and Maryland. In my collection is a 

 specimen from Panama. 

 6. A. robustus. 



Aradus robustus Uhler, Proc. Boston Soc. 1ST. H., 1871, p. 104. 



Dark fuscous, or rufo-piceus, with numerous close-set, short setae 

 over most of the surface; form of A. quadrilineatus Say. Head 

 broad and short, deeply grooved each side, and the posterior part of 

 the grooves still more deepened. Tylus narrow, high, rounded at 

 tip; on the constriction behind it is a minute, elevated granule. An- 

 tenniferous processes stout, subacute at tip, extending almost to the 

 tip of the first joint of the antennas. Antennas slightly flat, very 

 broad; basal joint very short, shorter than the apical one; second 

 longest, subfusiform, more than twice as long as the apical one, much 

 stouter than the basal ; third equally stout, a little more than one- 

 half the length of the second ; apical one a little longer than the ba- 

 sal, much narrower than the third, the tip subconical. Rostrum 

 paler, slender, reaching to between the anterior coxaa. Pronotum 

 transversely elongate-oval, more than twice as wide as long; the lat- 

 eral margins remotely denticulated, the teeth being smaller and closer 

 posteriorly; the anterior margin subtruncated, posterior margin lobed 

 behind the humeri; disk with four elevated ridges, the lateral ones 

 incomplete, curving inwards anteriorly, and on each humerus is a 

 short ridge. Margins of the scutellum much elevated. Legs paler 

 at base, the tibiae pale yellowish, with the base, tip and a broad band 

 on the middle black; tarsi tipped with black. Disk of corium usually 

 reticulated with pale ferruginous, which' includes also the two elevated 

 nervures; membrane pale, marmorated with fuscous, bearing four 

 long nervures. Tergum more or less ferruginous; venter very dis- 

 tinctly granulated, the middle line incised; postgenital flaps long and 

 broad, obliquely approaching at tip. Sides of the apical segments 

 broadly scalloped. Length, 5-|-7 millims. Humeral breadth, 2-2^ 

 millims. 



No. 82, Harris' Collection. "May 20, 1829." 



The only specimen in the collection is a female, of a dusky fus- 

 cous, more clearly ferruginous on the venter. The femora in some 

 specimens have a pale band or spot near the tip. Specimens have 

 been sent to me from Canada, Massachusetts, Illinois, and a single 



