ioo MEMOIRS ON THE COLEOPTERA. 



Dimetrota resima n. sp. Stout, rather convex, slightly shining, finely, 

 closely and asperately punctate, the abdomen with fine transverse strigi- 

 latiform reticulation and fine, rather close-set punctures, shining; color 

 black, the elytra pale piceo-flavate, infuscate apico-externally and suturally, 

 more broadly toward base, the legs pale, the femora blackish; head rather 

 transverse, parallel, the eyes prominent but at rather more than their own 

 length from the base, the tempora not quite so prominent, the carinae distinct 

 and entire; antennae black throughout, rather long and slender, very feebly 

 incrassate, the first joint much longer than the second or third, which are 

 equal, the fourth longer than wide, the tenth wider than long, the last dis- 

 tinctly shorter than the two preceding; prothorax well developed, moder- 

 ately transverse, much wider than the head and a little narrower than the 

 elytra, parallel, the sides more convergent and rounded apically, the basal 

 impression feeble, extended also briefly along the median line; elytra large, 

 parallel, distinctly transverse though fully a third longer than the prothorax, 

 the outer sinus at the apices broad and very feeble; abdomen rather short 

 and broad, slightly narrower than the elytra, parallel basally but narrowing 

 distinctly behind, the first five tergites subequal, the sixth (c?) truncate, 

 with two external and two smaller medial teeth, the three intervals equal; 

 mesosternum extending to the middle of the evidently separated coxae, 

 the tip angulate but not aciculate or prolonged, free, separated from the 

 somewhat short and parabolic metasternum by a rather long interval; four 

 basal joints of the hind tarsi equal, the fifth longer than the two preceding. 

 Length 2.4 mm.; width 0.7 mm. California (San Alateo), Baker. 



Identifiable by its stout form, sculpture and male sexual char- 

 acters. It differs from fenyesi Bernh., by its narrower prothorax, 

 black antenna and other characters. 



Dimetrota nuptalis n. sp. Less stout, shining throughout, the fine as- 

 perulate punctures rather close and conspicuous on the elytra, fine and well 

 separated on the pronotum and abdomen; head blackish, the prothorax 

 dark, the elytra a little paler, piceous-brown, the abdomen black, slightly 

 rufescent basally and at apex, the legs pale brownish-flavate throughout; 

 head transverse, nearly as in the preceding, the eyes at about their own 

 length from the base, the tempora about equally prominent, the carinae fine 

 but entire; antennae pale ochreous, only moderate in length, rather slender 

 and very feebly incrassate, the second joint much longer than the third, the 

 fourth distinctly elongate, the tenth nearly as long as wide, the last gradually 

 finely pointed, almost as long as the two preceding; prothorax rather trans- 

 verse, much wider than the head, as wide as the elytral base, the sides parallel 

 and broadly rounded, somewhat more converging apically, the basal im- 

 pression small and feeble; elytra rather short and transverse, with diverging 

 sides, the suture a little longer than the prothorax, broadly impressed basally, 

 the external sinus at the apices deep; abdomen a little narrower than the 

 elytra, parallel basally, narrowing slightly toward tip, the two basal paler 

 tergites shorter than three to five, which are equal. Length 2.5 mm.; width 

 0.6 mm. Rhode Island. 



The type of this distinct species is probably a female; the coxae 



