AMERICAN COLEOPTERA. 167 



to half the scape, thicker ; second joint transverse; third — seventh 

 closely connate; eighth — tenth forming an oval mass. Anterior coxa3 

 moderately prominent, prosternum not prolonged. Metathoracic para- 

 pleurfe moderate, epimera triangular. Segments of abdomen distinct, 

 penultimate joint rather longer. Anterior tibia? tridentatc externally, 

 ■with a spine on the inner side. Middle and posterior tibiae with a 

 transverse ridge terminating in a slight spine. Posterior femora thick- 

 ened. Tarsi equal to the tibiae. Claws dissimilar, the anterior claw 

 armed with a long tooth from near the base, posterior claw with a short 

 slightly emarginate tooth near the base. Penultimate dorsal and ven- 

 tral segments connate. Spiracle placed on the middle of the line of 

 the suture, and connected by a groove with the suture between the py- 

 gidium and propygidium. 



Figures 1 and 2 represent respectively the maxilla and palpus and 

 the claws of the tarsi of Plectrodes. In the first it will be seen that 

 the palpus is longer than the maxilla, and with the first joint very 



slender as compared with the others. 

 The last joint is oval, slightly curved, 

 and with the deep groove mentioned in 

 Figure 1. Figure 2. the above diagnosis. The second is a re- 



presentation of the tarsal claws of the right anterior tarsus, the claws ^'^^' 

 are the same, however, on all the feet and in both sexes. The anterior 

 claw is much larger and with a strong tooth, its outer face is also sul- 

 cate in the manner above indicated. 



P. pubescens, light testaceous brown, slight!}' shining, robust, convex above : 

 liead coarsely and densely j^unctured. with short, yellow, suberect hairs arising 

 from the jjunctures. Thorax broader than long, convex, anteriorly emarginate, 

 2"iosteriorly broadly lobed; sides strongly rounded, coarsely punctured above, 

 and clothed with suberect yellow hairs. Scutelluni moderate, triangular, with 

 rounded sides. Elytra convex, more finely punctured with very short, recum- 

 bent, yellow pubescence. Body beneath clothed with long yellowish-white 

 hairs; abdomen with shorter pubescence. Legs slightly fimbriate with hair. 

 Length .70 — .85 inch. 



Occurs rather abundantly at Visalia, California, whence specimens 

 were sent me by Mr. S. W. Marple, They fly among the oak trees of 

 that region and are attracted by light at night. 



Genus related to Ilypotrkliia Lee, though without any similarity 

 whatever of form. The former resembling Tant/proctus somewhat, 

 while the present genus is almost a counterpart of certain species of 

 Plcctris, in form, color and pubescence. By the peculiar sculpture of 

 the last joint of the maxillary palpi, these two genera seem to be re- 

 lated to the Tanyproctini, though in neither do we find the dilatation 



