COLEOPTERA OF SOUTHERN CALIFORNIA. 51 



Tachycellus. — Two forms are at present included under 

 the name T. nitidus. The larger, pale form is more 

 common near the coast, though I have seen specimens 

 from as far inland as San Bernardino. The smaller, 

 dark form is in my opinion specifically distinct; it is 

 widely dispersed. There is a still smaller piceous form, 

 the thorax with obtuse hind angles, specimens of which 

 have been seen from Pasadena and from the southern 

 Sierras. The proper elucidation of the species requires 

 study. 



Anisodactylus. — A. dilatatus is rather uncommon or 

 at least local; I have taken it in early spring under 

 stones in a dry hillside ravine near Pomona. A. piceus, 

 semipunciatus, consobvimis and californicus are all widely 

 distributed and more or less common. A. amaroides is 

 rare in our region; I have specimens taken at Riverside 

 and in the San Bernardino Mountains. Of the other 

 species recorded from California, strenuus occurs at 

 Fort Tejon; obtusus at San Jose; pilosus and immanis 

 in the San Joaquin Valley; nivalis at Santa Rosa and 

 north; pitychrous in the middle Sierras; porosus in the 

 northeastern desert regions. 



Anisotarsus. — A. flebilis or a closely allied species has 

 been taken sparingly at Pomona. 



Pseudomorphus. — P. cronkhitei occurs in Owens Val- 

 ley; behrensi in the San Joaquin Valley. 



AMPHIZOID.E. 



Amphizoa. — Four examples of A. insolens were taken 

 in a mountain stream near Pomona in September. 



HALIPLID.E. 



Haliplus. — H. concolor is rare at Pomona and River- 

 side, April and May; described from the Colorado River. 



