128 Journal New York Entomological Society. [Voi. vii. 



apex narrowly, and sides more broadly with angulate inner outline at the middle, 

 pale in the male. Length 2.65 mm. ; width 1.8 mm. Massachusetts; [z'entts- 

 tula MvXs. , jucunda \\ Lee. and lecontei Cr.] lugubris Rand. 



Subapical spot larger, slightly transverse, much nearer the limb than the suture ; dis- 

 cal spot but .slightly before the middle and somewhat nearer the suture than the 

 margin ; punctures not coarse but strongly impressed, moderately sparse ; head 

 and a narrow parallel pronotal side-margin pale in the male, the female having 

 the pronotal sides similar to the male but with the head black. Length 

 1.9-2.7 mm. ; width I.3-I.8 mm. California (Los Angeles to Sonoma Co.) ; 

 \Jiomi Crotch and elegaiis Gorh. nee Muls.] 4=0CUlata Mots. 



37 — Marginal pale vitta broader, deeply bisinuate within ; size larger. Length 2.0- 

 2.7 mm. ; width 1. 4-1. 8 mm. Rhode Island, New York, Pennsylvania, In- 

 diana, Iowa and Wisconsin ; \_L'Iegans Muls., maculifera Melsh. and giittifera 

 Weise] undulala Say 



Marginal pale vitta narrow and very feebly bisinuate within ; size much smaller, the 

 pronotum more alutaceous, with the apex and side margin similarly pale ni the 

 male. Length 1.6 mm. ; width l.o mm. Florida paludicola Schz. 



38 — Elytra with a well-marked and constant, internally and feebly bisinuate pale 

 margin, not quite extending to the suture, and a generally constant discal vitta, 

 extending from very near the basal margin near the middle obliquely toward 

 the sutural angle 39 



Elytra without a well-defined and continuous marginal pale vitta, the discal vitta 

 wholly obsolete or only distinct posteriorly 40 



39 — Discal vitta joining the marginal near the sutural angles ; body larger and less 

 narrowly oval. Length 2 3-2.6 nun. ; width 1. 6-1. 75 mm. California (San 

 I>ancisco) annexa Lee. 



Discal vitta not joining the marginal but separated therefrom near the sutural angles 

 by a space not as wide as its own width ; elytra more obtusely subtruncate at tip. 

 Length 2. 2 mm. ; width 1. 35 mm. Kan?as 4=vittata Lee. 



40 — Elytra with remnants of the discal vitta behind the middle, sometimes with three 

 narrow and feeble marginal spots, the margin frequently black throughout ; body 

 more depressed. Length 2.1 mm. ; width 1.4 mm. Lake Superior; [toiisimiiis 

 Lee. — Oxy}iychus'\ moerens Lee. 



Elytra wholly without pale markings of any kind, except a narrow suffused humeral 

 streak at the margin ; prothorax relatively more elongate along the median line. 

 Length 2. 1 mm. ; width 1. 5 mm. Arizona simulans, sp. nov. 



I have been unable to examine any exponents of cruentata, lewisi, 

 tccdata, geviina^ pratensis, punctata, tristis or floridana, following the 

 order of the most recent table of LeConte (Trans. Am. Ent. Soc., VIII, 

 1880, p. 186), but in assigning them to places in the above table would 

 venture to place the first immediately after tceniata, lewisi z.wA prate n sis 

 after pleuralis, tcedata after regalis, gemina after proba, piuictata after 

 paludicola and tristis after effeta, with which it is evidently very closely 

 related. Floridajia cannot be identified. 



