78 THE UNIVERSITY SCIENCE BULLETIN. 



tate line. ScuteDum strongly elevated at base, a little rugulose, deeply 

 depressed on the middle and posteriorly. Legs and coxae bright yellow, 

 the femora faintly tinged with brown, and the tips of tibiae and tarsi 

 piceous. Venter black, minutely pubescent, the apex a little tinged with 

 piceous. Corium and membrane coalescing, both coriaceous, long and 

 narrow, convexly arched, deflexed on the sides, the part representing the 

 membrane running off to an oblique rounded tip, with the nervures 

 almost effaced. 



"Length to tip of venter, 4^/^ mm.; to end of hemelytra, 4% mm. 

 Width of base of pronotum, IM mm. One specimen from the vicinity of 

 the Saskatchewan river, collected by Robert Kennicott. 



"This is surely only the dimorph of the form with perfectly developed 

 membrane. In the S. anthracina parallel forms occur, the one with a 

 distinct membrane and the other with the membrane thickened and almost 

 as coriaceous as the corium proper; also, the bounding nervure is faint 

 and almost obliterated, almost the same as in this form of S. crassi- 

 cornis. 



"In the present specimen, the nervules of the membrane are very in- 

 distinct." — Uhler. 



Genus SALDOIDA Osborn 1901. 



"Head narrower, eyes nearer together than in Salda, ocelli approxi- 

 mate, frontal ridge weak, becoming obsolete at base of tylus, bucculae en- 

 larged; antennas with the two distal joints incrassate, rostrum as in Salda, 

 basal joints very thick, second elongate, terminal very slender. Prothorax 

 bearing two very prominen-t conical tubercles on anterior lobe, which is 

 narrow, cylindrical, not carinate anteriorly; posterior lobe short, carinate 

 laterally, widening rapidly to humeri." 



Saldoida slos&oni Osborn 1901. 



Osborn, Can. Ent.. XXXIII, p. 181, 1901. 



"Hind angle of pronotum obtuse, not produced into a sharp angle or 

 horn. Light brown, marked with reddish-yellow and black, face tes- 

 taceous. Female, length to tip of elytra, 3 mm. ; width at humeri, scarcely 

 1 mm. 



"Head obtusely triangular, subcordate, inclined, the part in front of 

 the eyes nearly equal to eyes in length, very sparsely set with erect hairs ; 

 eyes large; vertex narrow, less than width of eye; ocelli minute, set close 

 together; antennae long, joint two longer than one, equal to three, three 

 much swollen, four equalling one in length, and about half as thick as 

 three; rostrum reaching to apex of hind coxae. Prothorax with two very 

 large, erect, conical tubercles occupying the upper surface of the anterior 

 lobe; posterior lobe short, much widened behind, concavely emarginate, 

 the lateral angles obtusely angulate. Scutellum large, anterior border 

 convex, surface polished, minutely punctate, apex inflated, highly polished. 

 Elytral membrane subhyaline, with four cells and a wide margin, wings 

 reaching to tip of elytra, milky hyaline. 



"Color: Vertex black, with margins next eyes red-brown; face and 

 rostrum testaceous, antennas, basal two-thirds of second joint and all of 

 third fuscous, apex of one and two whitish, fourth yellowish brown, 

 darker at base and minute tip ; prothoracic tubercles red-brown, posterior 

 lobe yellowish brown, anterior margin and band back of the tubercles 

 black; scutellum black, apex piceous brown; elytra brown, claval suture 

 and apical margin of corium black, corium with two triangular whitish 

 spots, the bases of which merge into the hyaline costa, membrane with 

 fuscous base and hyaline apex; beneath black, with throat, pleural pieces, 

 coxae and legs yellowish brown, darker on disc of coxae, apical portion of 

 femora and base of tibiffi, the apex of tibi« and last joint of tarsus, 

 fuscous; margin of last ventral segment whitish. 



"Described from one specimen (female) from Florida, collected by 

 Mrs. Annie Trumbull Slosson, to whom it is most respectfully dedicated." 



