HUNGERFORD: AQUATIC HEMIPTERA. 73 



roundish one; nervures coarse and deep black; the inner areole black, 

 with two yellow small spots next the outer margin and before the apex, 

 and with a larger one at the inner angle ; the central areole black at 

 base, next a large yellow spot, and then black with three moderately 

 large yellow spots, the last one is separated from the apical margin by 

 a black line; membrane pale yellowish, blackish at base, with black 

 nervules margined with blackish, and spots at their tips; a marginal 

 blackish line on the apical two-thirds of the outer nervule, and with a 

 transverse series of streaks; oblong spots on the middle of the areoles. 

 Venter black, minutely sericeous pubescent; the middle of the disk and 

 the posterior part of the genital segment yellowish; posterior margin 

 of the segments pale piceous. 



"Length to tip of venter, 5 mm.; to tip of hemelytra, 6 mm. Width 

 of base of pronotum, 2 mm. 



"One female, the type, is the only specimen that I have seen. It is 

 from British Columbia, and belongs to the Museum of Comparative 

 Zoology. It seems to be closely allied to the European S. latipes H. 

 Schir—Uhler. 



Saldula luctuosa Stal 1858. 



Salda luctuona Stal, Eugenies Resa, Hemipt., 263, No. 123. 



"Oval, blackish, moderately polished, having the form of S. palHpes, 

 but the colors and markings similar to S. littoralis. Head black, clothed 

 with fuscous hairs, with eyes somewhat broader than the anterior width 

 of the pronotum; eyes moderately prominent. Antennae somewhat more 

 than half as long as the body, blackish-fuscous. Rostrum blackish. 

 Pronotum three times as wide as long, anteriorly about one-half as wide 

 as at the base, the posterior margin broadly sinuated, the sides scarcely 

 arcuated with the margin, slenderly reflexed; blackish, clothed with some- 

 what depressed fuscous pile; the anterior lobe a little elevated. Scutel- 

 lum blackish. Hemelytra blackish, sparingly clothed with prostrate 

 pubescence, the costal margin at base somewhat expanded; membrane 

 very distinct, infuscated, having four areoles. Beneath blackish. Legs 

 obscurely fusco-testaceous, the tibiee and tarsi somewhat paler, the 

 former sparingly bristly. 



"Length, 4 mm. Width of pronotum, IVs mm. 



"Inhabits San Francisco, Calif." — Uhler. 



Saldula saltatoria Linn 1758. 



Linneaus, Syst. Nat. Edn., 10, p. 448, 1758. 



"Oval, convex, black, densely clothed with very short yellow hairs. 

 Clavus with a narrow, pointed, subapical, yellow spot; corium; on the 

 anterior margin two long yellow spots, interior to these a row of three 

 spots, the second and third round and white; beyond these a faint, long, 

 yellow ring on the basal half of the disk, followed by a long yellow streak. 

 Legs yellow. 



"Head. Clypeus, on its anterior margin, and the face, pale or dusky 

 yellow. Antennas black, first joint above, and generally the second before 

 the apex, yellow-brown. Eyes black. Ocelli reddish. Rostrum piceous; 

 labrum yellowish. 



"Thorax. Pronotum roundly narrowed to the front; sides flattened, 

 but raised within the hinder angles, the margins rounded, narrowly re- 

 flexed ; posterior margin deeply, somewhat squarely concave across the 

 scutellum, the ends roundly produced over the base of the elytra; disk 

 very finely punctured, the callosity occupying nearly two-thirds of the 

 length, the posterior furrow deep, the single central fovea deep. Scutellum 

 convex, slightly shining; basal half finely punctured, posterior half very 

 finely crenate; the depression large, posteriorly straight. Elytra dull; 

 clavus with a narrow, pointed spot before the apex ; corium, sides widely 

 flattened as far as the middle; the margin with a long, narrow, yellow 

 spot in the middle, and a shorter one before, and not reaching to, the 



