. Brigham Young University science bulletin. Biology -- Periodicals. MlRIDAE OF THE NEVADA TEST SlTE 43 and base of clavus. Hemelytra pale brownish, closely matted with golden sericeous pubes- cence; cuneus slightly darker brown, pallid at the fracture. Membrane pale to clear, tinted brownish, veins pale brownish. Ventral surface rather uniformly rich yellowish brown. Legs uniformly light yellowish brown, without dots or spots; tibial spines brownish black, without spots at base. Male. Length mm, width mm. Head: width .72 mm, vertex .37 mm; brown. Rostrum, length .68 mm, reaching upon
. Brigham Young University science bulletin. Biology -- Periodicals. MlRIDAE OF THE NEVADA TEST SlTE 43 and base of clavus. Hemelytra pale brownish, closely matted with golden sericeous pubes- cence; cuneus slightly darker brown, pallid at the fracture. Membrane pale to clear, tinted brownish, veins pale brownish. Ventral surface rather uniformly rich yellowish brown. Legs uniformly light yellowish brown, without dots or spots; tibial spines brownish black, without spots at base. Male. Length mm, width mm. Head: width .72 mm, vertex .37 mm; brown. Rostrum, length .68 mm, reaching upon apex of hind coxae. Antennae: segment I, length 14 mm; II, .64 mm; III, .44 mm; IV, .23 mm; yellowish brown. Pronotum, length .34 mm, width at base .85 mm. More slender than the female, but very similar in color and pubescence. Holotype: 9 Aug. 19, 1926, alt. 2400 ft, Tucson, Arizona (A. A. Nichol). Allotype: c? taken with the type. Paratypes: o* 5 9 taken with the types on Lycium torreyi, which is the host plant. 6 9 Sept. 2, 1928, Rincon Mts., alt. 3300 ft (A. A. Nichol), taken on Lycium tor- reyi- Europiella stigmosa Uhler Fig. 72 Agalliastes stigmosus Uhler, 1893:379. Europiella stigmosa Reuter, 1909:84. Europiella umbrina Reuter, 1909:85. I have examined co-types of umbrina Reut. and find the specimens are of the dark color form of stigmosa (Uhler). I have seen speci- mens of this species from Colorado, Utah, Ne- vada and California. The following records are known from the Nevada Test Site: Area 401M, 10d" 3 9 June 22, 8cf 4 9 June 19, 1965; Area 19M, 2d June 22, 18cf 89'June 23, 1965; Area 17M, Id 29 June 11, 1965. The host plant is Artemisia tridentata on which stigmosa has been found in Nevada, Utah and Colorado. Europiella concinna Reuter Europiella concinna Reuter, 1909:84. I have placed this species in the key since it was described from Claremont, Calif. (Baker) and may well occur in southern Nevada. I have specimens from northern Arizona determined as this sp
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