1918 Pomona College Journal of Entomology and Zoology, Vol. X, No. 3, September 



Coleoptera from the Claremont- 

 Laguna Region 



Compiled from the Collections of Pomona College by Lea Myers. 



All the local determined beetles are here listed as they are found in the Cook-Baker 

 collection. More recent specimens are not listed if they are the same as those in 

 the original collection. 



HYDROPHILID^E 

 Tropisternus s.p. . . Metz. Claremont, Cal., Portland, Oregon. Dark 



brown with lighter brown border on wings and prothorax. Oval shaped. 



10 mmx5; 2 mm. 

 Tropisternus limbalis Lee. Fall. . Laguna Beach, Cal. Dark brown with nar- 

 rower light brown border on wings and prothorax. Larch spur on each leg. 



10 mm x S l / 2 mm. 

 Tropisternus salsamentus Fall. Fall. . Laguna Beach, Cal. Very dark brown. 



Oval shaped. 9 mm x 4^ mm. 

 Tropisternus californicus Lee. Fall. . Laguna Beach, Cal. Black. Oval 



shaped. Antennas very short. 9 mm x 5 mm. 

 Philhydrus californicus Horn. . . Laguna Beach, Cal. Shiny brown. Oval 



shaped. Small thread-like antennae. 6 mm x 3 mm. 

 Cercyon fimbriatum Mann. Fall. Baker. Laguna Beach, Cal. Brown. Wing 



covers ridged. Oval shaped. Antenna; short. 3 mm x 2 mm. 



LAMPYRID^ 



Telephorus ingenuus Lee. Fall. Baker. Claremont, Cal., and mountains near. Dark 



grey with tan prothorax and a black stripe running from eye to eye. Soft wing 



covers, prominent eyes. Long antennas. 7 l / 2 mm x 3*4 mm. 

 Telephorus tibiellus Cemm. . Baker. Claremont, Cal. Light brown with reddish 



brown legs and prothorax and head. Eyes black. Soft wing covers and long 



antennae. Rectangular shaped beetle. 16J4 mm x \ l / 2 mm. 

 Malthodes n. sp. . Fall. Baker. Claremont, Cal. Grey with brown prothorax 



and head. Long antennas, short wing covers. Small prothorax. Z l / 2 mm x \ l / 2 mm. 



LATHRIDIID.E 



Lathridius armatulas Fall. Fall. Baker. Claremont, Cal. Bronze colored. Narrow 

 prothorax and head with large abdomen. Short clubbed antennae. 2^mmxlmm. 



LUCANID,^ 



Sinodendron rugosum Mann. Fall. . Claremont, Cal. Dull black. Body slightly 



rough. Head with turned-up hook on it. Prothroax divided into two parts, with 

 median dorsal line on second part. Also small projection on prothorax. 

 11 l / 2 mm x 5 mm. 



MALACHID.L 



Collops marginecollis Lee. Fall. Baker. Laguna; Claremont, Cal. Blue with reddish 

 brown prothorax and legs. First two joints of antennae thick and triangular. 

 Prothorax covered with long hairs. 4 mm x 3 mm. 



Collops marginellus. Lee. Fall. Baker. Claremont, Cal. Blue with black prothorax 

 and head. Short brown antennae. 4mmx2J^mm. 



Collops argutus Fall. Fall. Baker. Mountains near Claremont, Cal. Brown with 

 black markings. Covered with short brown hairs. First two segments of antennas 

 large and peculiarly shaped. 4 ! /2 mm x 2 l / 2 mm. 



Malachius acutipennis Fall. Fall. Baker. Claremont, Cal. Brown with orange pro- 

 thorax, and orange tips on wing covers. Antennae resemble sawteeth. Long legs. 

 5 mm x S l / 2 mm. 



Malachius uniformis Fall. Fall. . Claremont, Cal. Black with blue wing 



covers. Abdomen extending beyong wing covers. 5 mm x 2 l / 2 mm. 



