148 Annals Entomological Society of America [Vol. XV, 



median carina, lateral carina more sharply defined. The lateral carina 

 of the front rounding in and uniting with the median at the rather 

 broad truncate apex, not joining the median carina of the vertex. 

 Rostrum about equalling the abdomen. Grayish brown, abdomen 

 smoky with a few irregular lines. 



Examples are at hand from Helper and Marysvale, Utah, 

 taken in July and August from sage brush {Artemesia tridentata) 

 growing on the sunny slopes of the Wasatch Mountains at 

 elevations of 7,000 to 8,000 feet. 



Aridia erecta Ball. 

 (Plate XII, Fig. 3.) 

 Orgerius erectus Ball. Proc. Bio. Soc. Wash., Vol. XXII, p. 202, Dec, 1909. 



Resembling Orgerius minor, but smaller and with a rounding 

 cephalic process very slightly upturned. Length, 4 mm. 



Cephalic process short, extending beyond the eye less than its 

 length, rounded at the apex with a truncate tip. Front sharply cari- 

 nated, narrow, the width about one and one-half times the short diam- 

 eter of the eye, lateral carina? uniting with the median carina just before 

 the truncate apex of head, median carina of the vertex not uniting with 

 the median carina of the front. Vertex small, triangular, apex of the 

 head as seen from side bluntly rounded, almost truncate, not curved 

 upward as in compressa. Rostrum decidedly longer than abdomen. 

 Pale smoky lined with brown ; elytra dirty straw ; abdominal segments 

 smoky with irregular dark markings. 



Examples are at hand from Reno, Nevada, Doyle, Chilcoot 

 and Kelso, California, indicating a distribution for a long 

 distance along the slopes of the Sierra Nevada Mountains. The 

 larv£e were abundant in early June. Very few adults at low 

 levels while they were about equally divided on the highest 

 levels late in July. They were found on the ground in open 

 places. 



Timodema Ball. 



Intermediate between Aridia and Ticida but with the 

 anterior femur greatly expanded, foliaceous. 



Cephalic process short, broad at the base, rounding at the apex, 

 vertex tricarinate, shorter than eye, not extending to the apex of the 

 head, with acutely angulate anterior margin, the median carina of the 

 front uniting with the median carina of the vertex. Front broad, five 

 carinate, median tablet tricarinate. Median carina of the front and 

 cephalic process coalescing. Clypeus broad, distinctly tricarinate. No 

 callosity between the eye and pronotum. Pronotum short without 

 raised tablet, pustulate to the median carina. The central tablet of the 



