Vol. 1] Van Duzce. — Lake Tahoe Hemiptera 237 



Dichrooscytus elegans Uhler. Taken with the preceding forms 

 but less abundantly and a little earlier. 



Lygidea rehucula ohscura Rent. Three examples were taken 

 about the Lodge July 20 and 21. These differ in no respect from 

 specimens taken in the state of New York. 



Platylygus luridus Rent. Not uncommon on Jeffrey pines 

 from July 8. These are larger than eastern specimens but do not 

 otherwise differ. 



Lygus pratensis Linn. The pale form with yellowish scutel- 

 lum which is characteristic of the Califoruian fauna was common 

 at all the lower levels and up to 8000 feet. Three examples of 

 the dark eastern form were taken on July 23 at Half Moon Lake. 



Lygus jilagiatus Uhler. This form was common above 7500 

 feet but rarely was taken at lower levels. 



Lygus campestris Linn. Common about Fallen Leaf Lake and 

 up to 7800 feet at Half Moon Lake. 



Xenohorus canadensis Van D.I One example which may rep- 

 resent a distinct species differs in being smaller and in having 

 the basal joint of the antennae and the tylus concolorous. 



Camptohrocliis validus Rent. Four examples were taken 

 about Fallen Leaf Lake and Grass Lake from June 23 to July 5. 



Camptohrocliis fulvescens Heut. Beaten from pine on the 

 south slope of Mount Tallac on July 30. These specimens are 

 glabrous and have much the aspect of nit ens but the male genital 

 characters are those of fulvescens and I prefer to so place them 

 for the present. 



Deraeocoris ing-ens, new species 



Large, deep black, polished; second antennal joint greatly thickened. 

 Length 8 mm. 



Aspect of Capsus ater, but much larger and more elongated, with 

 antennae more clavate. Head as in Camptobrochis, prominent; hind 

 margin of vertex and eyes nearly rectilinear. Vertex almost flat, basal 

 margin subcarinate behind a shallow depression. Antennae stout, inserted 

 before the eyes at a distance about equal to the thickness of first segment; 

 this segment as long as the median width of vertex; second (3.5 mm.) 

 longer than basal width of pronotum, at base more slender than first but 

 regularly thickened to near its apex, where it is as thick as the antero- 

 posterior diameter of the eye, its surface closely pubescent and armed 

 with a few longer hairs; third and fourth segments short and slender 

 but not setaceous, together equal to length of the anterior tarsi, third 

 scarcely longer than fourth. Pronotum shaped much as in Camptohrocliis 



