Vol. 1] Van Duzee. — Lake Tahoe Hemiptera 241 



Lopidca nigridea Uhler. Several specimens of what I take to 

 be a smaller form of this species were taken about Fallen Leaf 

 Lake during July. This small form is but 4 mm. to the tip of 

 the abdomen, the surface is more slaty-black with the stiff hairy 

 vestiture more pronounced, and the markings are paler, being 

 but rarely tinted with red. The male genital characters are 

 nearly identical and it does not seem best to try to distinguish 

 them at present. 



Hadronema miliiaris Uhler. One example was taken on the 

 shore of Half Moon Lake, July 23. 



Hadronema, rohusta Uhler. A single specimen was taken with 

 the preceding. 



Paraproha liamata Van D. Upper end of Fallen Leaf Lake, 

 June 21. A single specimen. 



Orthotylus tibialis Van D. A good series of this very distinct 

 species was taken in July from a low hirsute weed growing along 

 the road between the sawmill on Fallen Feaf Lake and the Hotel 

 Tallac. The descriptions of this and other new species in this 

 genus will appear about simultaneously in the Proceedings of the 

 California Academy of Science. 



Orthotylus insignis Van D. A very pretty species, of which 

 three examples were taken July 24 on the "short trail" to Glen 

 Alpine Springs, where a tiny streamlet caused a rank growth of 

 vegetation. 



Orthotylus viridicatus Uhl. Not luicommon on the rank weeds 

 growing near the lower end of Fallen Leaf Lake, at Half Moon 

 Lake and near Glen- Alpine Springs. The black membrane with 

 conspicuous white veins will distinguish this pretty species. 



Orthotylus uniformis Van D. A plain green species of which 

 numbers were taken near Fallen Leaf Lake in July, mostly on 

 the chaparral. 



Orthotylus ovatus Van D. Common on junipers on the south 

 slope of Mount Tallac late in July. 



Orthotylus formosus Van D. Two examples of this very dis- 

 tinct form were beaten from alder bushes in a damp spot on the 

 south slope of Mount Tallac about 200 feet above Glen Alpine 

 Creek on July 30. I was unable to find any on the lower levels 

 along the creek, but it is possible that the warmer location on the 

 sunny hillside brought them out earlier than in the shaded valley. 



Orthotylus affinis Van D. Abundant everywhere on willows 



