158 NEW SPECIES MELYRIDAE, CHRYSOMELIDAE AND TENEBRIONIDAE 



densely indentato-punctate in the lateral two-fifths, lustre dull ; fimbriae 

 moderate in length, even and cinereous in color. 



Elytra oblong, less than twice as long as wide and a little wider 

 posteriorly ; sides feebly arcuate, subparallel, moderately convex on the 

 disk; punctures separated by a distance equal to about twice their 

 diameter, at base subequal to those of the pronotum, finer apically and 

 more widely spaced ; apex rather broadly rounded. 



Abdomen finely and rather sparsely punctate; surface extremely 

 finely rugulose ; pubescence slightly longer and finer. Fifth ventral seg- 

 ment modified on the disk in the male. 



Legs moderate in length and stoutness. Metatrochanters triangular ; 

 femora quite cylindrical behind the trochanters and more or less arcuate. 



Male. Narrower. Metatrochanters subacute on their inner angle ; 

 femora more strongly cylindrical and arcuate behind the trochanters. 

 Fifth ventral segment shorter and evidently sinuato-truncate at apex; 

 hairs of the genital segment more or less brownish or blackish. 



Female. Broader. Metatrochanters rounded on their inner angle ; 

 femora less cylindrical and arcuate at base ; fifth ventral longer with the 

 margin broadly rounded at apex. 



Measurements. Length (Types), 2.5-3 mm.; width, .9-1.1 mm. 



Holotype, male, and allotype, female, in my own collection. Para- 

 types in my own and that of Mr. J. O. Martin. 



Type locality. Bear Lake, San Bernardino County, California. 

 Collected by Mr. J. O. Martin, on May 5, 1919. A series of twenty 

 specimens studied. 



Tro chant ericus differs from all known species in the form of the 

 metatrochanters and metafemora. The elytral fasciae are usually broken 

 up into rounded or slightly transverse maculae, never attaining the suture 

 in the series at hand. The central dark figure of the pronotum may be 

 broken up or shaped like two U's with their bases together. 



Listrus liebecki, new species. Form distinctly oblong-oval and 

 moderately convex. Color very black, with a more or less dark virido- 

 metallic lustre; basal joints of the palpi and mandibles more or less rufo- 

 piceous ; second antennal joint rufous, the four following joints more or 

 less dark rufo-piceous ; tarsi and distal half of the tibiae more or less dark 

 rufous to rufo-piceous. 



Pubescence sparse, short, closely recumbent and very inconspicuous, 

 dark plumbeous in color, dark areas clothed with very dark-brown hairs. 

 Maculation very obscure and apparently consists of rather broad fasciae 

 and maculae arranged as follows : A large parascutellar and a smaller 

 humeral macula on each elytron ; a post basal macula at middle of each ; 



