A New Anthicus from California 
(Coleoptera: Anthicidae) 
Donald S. Chandler 
Red Bluff, California 96080 
Recent studies in the dune areas near the mouth of the 
Sacramento River have resulted in the collection of a new species of 
Anthicus. This species appears to be restricted to these dune areas 
and its existence in this restricted habitat is being brought to the 
attention of the Office of Endangered Species. 
I would like to thank Dr. F. G. Werner, University of Arizona, and 
Christine A. Janus-Chandler for checking the manuscript. All mea¬ 
surements are in millimeters. 
Anthicus Sacramento, new species 
(Figs. 1-3) 
3.18-3.63 long. Head and prothorax rufescent, elytra all testaceous to piceous with large 
testaceous areas at humeri and in apical fourth in most specimens, legs testaceous. 
Head, pronotum and underside of body covered with faintly reticulate sculpture. Body 
and elytra with moderately dense, subdecumbent setae. 
Holotype male: 1 mi. W Isleton. Head 0.71 long, truncate at base, basal angles 
rounded, widest just behind eyes, 0.68; punctation moderately dense across front, sparse 
along narrow longitudinal line at center of frons, setae on frons 0.06 long. Eyes large, last 
segment of maxillary palpus obliquely truncate. Antennae rufescent, antennomeres 
elongate, length/width antennomeres l-XI: I 0.17X0.07, II 0.12X0.06, III 0.16X0.06, IV 
0.15X0.06, V 0.17X0.06, VI 0.15X0.06, VII 0.15X0,06, VIII 0.12X0.06, IX 0.15X0.07, X 
0.12X0.08, XI 0.17X0.08. 
Pronotum cordate, 0.70 long, maximum width 0.72 at 0.46 from base, 0.48 wide at base, 
prominent at apical angles, dorsal margins abruptly sloping to collar, faintly rugulose 
appearance caused by slightly raised edges around numerous setal punctures, punctures 
denserthan on head. Collar rugulose, 0.31 wide. 
Elytra 1.80 long, with prominent humeral angles, widest at middle, maximum width 1.14 
at 0.70 from b^se, elytra without reticulation, setae 0.08 long, punctures separated by at 
least their own width. Hind wings fully developed. 
Ventral sclerites of thorax with punctation similar in size and spacing to that of elytra. 
Abdomen similar but with smaller punctures. Setae along posterior margin of propleura 
directed laterally. Femora moderately thick, profemur 0.67X0.23, protibia 0.58X0.10, 
metafemur 0.78X0.23, metatibia 0.81X0.09, metatibia with medial expansion at 0.30 from 
base, shallow emargination extending from expansion to 0.60 from base. Sternite seven 
biemarginate at apex with center produced, dense short setae directed medially along 
apex. 
Specimens examined: HOLOTYPE male: Grand Island, 1 mi W Isleton, Sacramento 
County, California, 13 July 1975, J. Doyen, P. Opler, J. Powell, deposited in the California 
Academy of Sciences. 36 PARATYPES: California: Solano County: 8 males, 3 females, Rio 
Vista, 21 August 1974, D. S. Chandler, collected in sand dune area (D. S. Chandler collec¬ 
tion); 6 males, 4 females, 2 mi SW Rio Vista, 18 August 1974, J. Doyen & P. Opler (Univ. 
Calif., Berkeley). Sacramento County: 10 males, 2 females, eutopotypical (Univ. Calif., 
The Pan-Pacific Entomologist 54:15-17. January 1978 
