Mat, 1893.] INSECTS OF THE DEATH VALLEY EXPEDITION. 205 



eluding the xyphus, pale, lint blackish at base; legs dusky testaceous, with the 

 nails, tips of tarsi and spines piceous; hcmelytra wide, almost translucent, closely 

 hoary pubescent, the costal margin broadly curved, the disk and claws dusky olive, 

 membrane pale dusky olive, venter dark olive with a fuscous tinge, finely pale pubes- 

 cent, with the genital pieces paler. 



Length to end of abdomen, 4"""; to tip of membrane, 4i 1 "" 1 ; width of base of 

 pronotum, If™. 



(hie specimen was taken on the Argus Mountains in May. The species occurs in 

 the vicinity of Los Angeles and in other parts of southern California. 



Some five or six other new species of genera related to Lygus, Macrotylus, and 

 Psallus, belong to this collection, but they are not in condition for description. 



ANTIIOCORID^E. 



Antliocoris Fall. 



A. musculus Say. Heteropt. New Harmony, p. 33; No. G. 

 One specimen was secured on the Argus Mountains in April. 



SALDIB^E. 



Salda Fab. 



1. S. interstitialis Say. Journ. Philada. Acad., vol, iv; p. 324; No. 1. 



Two specimens were secured in the Panamint and Argus mountains in April. They 

 belong to two varieties with the white spots not widely distributed. 



2. S. explanata, new sp. 



In form sTmilar to S. brachynota Fieb,, of Europe. Deep black, dull, covered with 

 minute golden pubescence. The head but little wider than the front of the prono- 

 tum, and the eyes moderately prominent, the clype.us margined each side and the 

 tylus entirely testaceous; antennas stout, black, white on the outside of the basal 

 joint. Pronotum short, transversely wrinkled behind, the base deeply sinuated, the 

 lateral margins oblique and a little curved, thesubmargin broadly, deeply depressed, 

 remotely punctate, with the edge a little recurved, the humeral angles with the but- 

 ton-like callosity near the border; callosities transversely prominent, with a sunken 

 dot in the middle between them ; pleural depression coarsely and remotely punctate. 

 Tip of femora, the tibia} excepting the base and tip, and the tarsi excepting the tip, 

 pale testaceous. Hemel ytra obsoletely and minutely punctate, remotely pubescent, 

 marked with whitish oblong flecks, an obsolete pair being placed near the tip of the 

 clavus, a few minute ones from near the base to behind tbe middle, an angular spot 

 next the middle of the posterior margin and a more distinct white dot exterior to 

 this; the membrane has four long, narrow, pale areoles marked with the ordinary 

 smoky oblong spots, and tbe posterior border is also smoke-brown with a white dot 

 at the inner angle. Venter dull black, minutely pubescent, with the sixth segment 

 of the female broadly and unevenly bordered behind with white. 



Length to tip of membrane, 4f to 5 mm ; width of base of pronotum, If to 3 mm . 



This species occurs in various regions west of the Rocky Mountains. I have 

 examined specimens taken in Nevada, Olympia, in Washington State, various 

 parts of Utah, and California. A pair of specimens in the present collection were 

 secured in the Panamint and Argus mountains in the month of April. 



