Vol. 1] Yan Duzee. — Lahc Tali or Hemiptera 238 



Aradus horealis Heid. Professor Woodworth took one ex- 

 ample of this species on the eastern slope of Mount Tallac along 

 the trail from Cathedral Lake to Floating Island Lake, on July 6, 

 at an altitude of 7000 feet. 



Aradus hehrensi Bergr. A few examples were taken from 

 trees near the upper end of Fallen Leaf Lake, June 25. The next 

 day I took near the lower end of the lake two specimens of what 

 I believed to be brachypterous or imperfectly developed speci- 

 mens of the same species. In these the elytra reach only to the 

 base of the fifth abdominal segment. 



Aradus insolitus, new species 



A small, black species marked with pale granules; humeral angles sub- 

 acute, latero-anterior margins a little concavely arcuated, second antennal 

 joint narrowly white at apex. Length 4 mm. 



Form narrow ovate, about as in tuhercuUfer Kirby. Head with a short 

 oblique impressed area on either side interior to the eye. Antenniferous 

 tubercles with a large acute spine which surpasses the middle of first 

 antennal segment. Antennae regularly but moderately thickened to apex 

 of third joint; basal scarcely longer than broad, second about as long as 

 the distance between the eyes, uniformly thickened toward its apex, white 

 apical portion about as long as the thickness of the joint at base; third 

 and fourth about equal in length, the latter fusiform. Pronotum rather 

 small; humeri prominent, subacute, the margins behind them feebly 

 rounded, the latero-anterior margin a little concavely arcuated with the 

 anterior angles prominent and subacute; entire lateral margins quite 

 regularly and minutely crenulate; disk a little depressed across the 

 middle, marked posteriorly with four parallel carinae which become con- 

 fused anteriorly. Scutellum narrow, about as long as pronotum, obtuse 

 at apex, margins but little elevated. Elytra reaching nearly to tip of 

 abdomen, but little narrowed apieally; costa regularly but moderately 

 dilated at base. Nervures of corium and membrane prominent. Rostrum 

 reaching but little beyond the base of the head, encroaching upon base of 

 the prosternum about the width of the sternal sulcus at its middle; this 

 sulcus expanded at base and apex. Genital lobes of the male about as in 

 similis, the oblique apical margins a little more rounded. 



Color almost black; narrow apex of second antennal segment, tips of 

 the humeri, broad but indefinite apex of scutellum, knees, tips of the 

 tibiae and apical angles of the abdominal segments pale or whitish. 

 Whole surface irregularly dotted with minute greenish-white granules, 

 most numerous on the head, disk of scutellum and elevated areas of 

 pronotum and elytra; granulations of connexivum becoming a clear sea- 

 green in places. 



