700 Coleopterological Notices, VI. 



expanded laterally; punctures rather coarse, deep and very close though dis- 

 tinctly separated. Elytra large, two-thirds longer than wide, a little more 

 than twice as wide as the prothorax, quite distinctly wider just behind the 

 middle than at base, the apex somewhat broadly rounded; omoplates large and 

 very feeble; punctures coarse and rather sparse, slightly finer toward apex. 

 Abdomen finely-, somewhat closely punctate, the pubescence short and very fine. 

 Legs moderate in length, rather stout. Length 3.3 mm. ; width 1.25 mm. 



California (Los Angeles). 



Represented by a single female, having a large nubilate paler 

 spot on each elytron at about apical third. The species is distin- 

 guishable from biguttulus by the peculiar form of the prothorax, 



A male, taken in southern California by Mr. Dunn, is placed 

 with this species for the present, although it difters in having a 

 relatively larger, more elongate and less mediall}^ rounded pro- 

 thorax and narrower bodily form ; it is similar, however, in color- 

 ation, being pale, with the head black. This specimen is the only 

 one before me of the biguttulus group which has the male organs 

 in any wa}- protruded, and even here they are only partially visi- 

 ble ; the copulatory sheath has the sides straight and gradually 

 convergent at apex, the immediate tip of the latter prolonged in 

 a narrow acute point ; the excavation of the under surface con- 

 tinues to the extreme acute apex, becoming canaliculate along the 

 produced spiculiform portion; the portion visible is perfectly 

 straight in profile. 



14. A. 1)iguttulu«« Lee. — Ann. Lye. Nat. Hist., X .Y., V, p. 155 ; 

 Proc. Acad. Nat. Sci., Thila., 1852, p. 101. 



Moderately broad, shorter and stouter in the female, black 

 throughout ; tarsi and antennae toward base paler ; elytra each 

 with a small rufo-testaceous spot behind the middle, which is fre- 

 quently almost obsolete ; pubescence abundant, moderately long 

 and coarse. Head subquadrate, finely' but strongly, densely 

 punctate, without impunctate line, the base broadly arcuato-trun- 

 cate, not impressed ; angles broadly rounded ; tempora long, be- 

 coming parallel for a long distance behind the e^es, the latter 

 moderately small, prominent; antennae rather longer than the 

 head and prothorax, moderately incrassate, the tenth joint dis- 

 tinctly longer than wide. Prothorax large, subequal in width to 

 the head, a little longer than wide, convex, deeply, not very 

 coarsely, extremely densely punctate, widest one-third from the 

 apex, the sides very broadly arcuate, gradually convergent pos- 



