152 H. C. FALL. 



The type described above is a male, collected by Koebele in the 

 Argus Mts. in southeastern California. There are also females 

 from the same locality which are undoubtedly correctly associated 

 with the males but which differ quite conspicuously in the much 

 smaller eyes, larger thorax, this being distinctly wider than the 

 head, and the shorter though parallel outer antenna] joints. One 

 of these females is entirely black, except the tarsi, but seems scarcely 

 different otherwise. Several specimens taken at Brightous, Utah, 

 by Hubbard and Schwarz, and one at Tallac (Lake Tahoe), Cali- 

 fornia, by Dr. Fenyes, are nearly identical with the Argus Mount- 

 ains female, though differing a little in the relative lengths of the 

 antennal joints, and these together with a male from Ouray, Colo- 

 rado (Wickham), which differs in a similar way from the type, are 

 all placed here for the present. All these agree in the most essen- 

 tial characters; viz., the 10-jointed antennae, trapezoidal thorax with 

 sharply defined hind angles, palpal formation and unusually long 

 first tarsal joint. 



PARALOKII UU new genus. 



Men tu m transverse, trapezoidal ; palpi slender, first joint very 

 short, second and third longer than wide, a little dilated apically ; 

 terminal joint not wider than the preceding, widest near the base, 

 elongate- acicu far, not compressed. Labrum arcuate in front. An- 

 tenna? 11 jointed, three outer joints longer, intermediate joints 

 serrate. Eyes large ( $ ), or moderate ( 9 )• Prothorax not mar- 

 gined at sides. Elytra elongate, parallel ; punctuation confused. 

 Presternum longer before the coxa? than the longitudinal diameter 

 of the latter, with short intercoxal cusp. Mesosternum trapezoidal, 

 oblique, not carinate or foveate in front. Metasternum declivous 

 in front, median line sulcate posteriorly. Ventral segments one to 

 four not very unequal, fifth longer, parabolically rounded. Front 

 and middle coxae very prominent, contiguous, hind coxae moderately 

 sulcate, coxal plates gradually wider internally. Legs long and 

 very slender, tarsal joints one to four decreasing in length, first 

 joint shorter than the next two together, the fourth fully twice as 

 long as wide, not at all emarginate ; fifth joint inserted at the apex 

 of the fourth, very slender, linear, about as long as the third ; claws 

 simple. 



