154 GEO. H. HORN, M. D. 



This species resembles somewhat our eastern cisteloides and replaces 

 it in the west. 



Occurs in western Nevada, collected rather abundantly by H. K. 

 Morrison. 



DElVDROIDE^ii Latr. 



D. picipes n. sp. — Piceous, shining, thorax red, base of femora and tip of 



abdomen pale. Thorax as wide as long, arcuately narrowed in front, surface 

 shining with extremely minute punctures sparsely placed and a slight basal 

 impression. Elytra scarcely dilated posteriorly, moderately densely coarsely 

 punctured. Body beneath sparsely finely punctate, abdomen a little more 

 coarsely and densely. Legs nearly black, base of femora and coxae ferruginous. 

 Length .52 inch; 13 mm. 



Male. — Antennae with joints 3 — 10 emitting a very long slender branch, 

 those on joints 6 — 10 fully five times the length of the joint; the last joint 

 a little longer than the preceding four taken together. Last ventral segment 

 truncate. 



Female. — Unknown. 



In color of upper surface this species resembles canadensis, but 

 difters by the under side and legs being piceous and the thorax very 

 much less conspicuously punctured, as well as by the length of the 

 last joint of the antennae which in canadensis equals the three pre- 

 ceding joints. In its characters except color it more nearly ap- 

 proaches concolur. 



One specimen given me by Dr. D. M. Castle, who received it from 

 California. 



EXPLANATION OF PLATE III. 



1. — Dyschirius Icevifasciatus Horn, Trans. Am. Ent. Soc. 1878, p. 52. 



2. — Pterostichus agonus Horn. 



3. — Harpalus ohliquus Horn. 



4. — Xenomycetes Morrisoni Horn. 



5. — Head and thorax of a, Phymaphora californica Horn ; h, P. pulchella Newm. 



6. — Phileurus crihrosus Lee; h, hind tibia and tarsus P. truncatus Beauv., 

 natural size. 



7. — Claws and maxillary palpi of P/ec<ro(ies Horn ; o, P. pubescens Horn, show- 

 ing the two claws on each leg; d, Maxillary palpus of same, as seen 

 from above, the impression on the outer side and an imaginary trans- 

 verse section; b, P. Carpenteri Lee, the claws; e, the maxillary palpus; 

 c, P. pal pahs Horn, the claws; /, the maxillary palpus. 



8. — Trogodendron Edwardsii Horn. 



9. — Asida quadricollis Horn. 



