XOKTH AMKHICAN ('OI.KOPTICRA. 9 



S. SOiiorcilfiiis J;ic(il).v. Biol. Cent. -Am. vi, i)t. i, Su|.pl. p. 88. pi. xxxvii. fij:, 

 10. — Form of saucia. cohalt-hlue, but les.s shining than that species. Head mod- 

 erately coarsely punctate, slijihtly .strigose. and with alutaceous surface. Thorax 

 rather coarsely and moderately closely punctate, more coarsely, closely and 

 deeply at the sides, surface somewhat alutaceous, Elytra rather roughly sculp- 

 tured, the rows of punctures only moderately distinct at the sides, on the disc 

 much confused where those of the strire atid of the ititervals are scarcely dis- 

 tinct: humeral spot large, extending inwards to the fourth stria and near the 

 base to the third, at the sides covering the entire epipleural lobe, extending more 

 than a third from the base toward the apex. Body beneath densely finely punc- 

 tured, clothed with short, silken, cinereous pubescence. Length .20 — .22 inch.; 

 5 — 5. .5 mm. 



This species resembles sa^tcia pretty closely, but the thorax is iDore 

 (;onr.*ely punctured, and the humeral spot of greater extent. The 

 epipleural lobe is also more subangulate, but less so than in apicalis 

 or the Mexican saginata. 



Occurs in Arizona. Mr. Jacoby gives northern Sonora as his 

 locality, the specimens having all been collected by Morrison. 



S. omogora Lac. Mon. ii, p. 482. — Bluish-green to dark l)lue, moderately 

 shining. Head punctate, slightly rugulose with alutaceous surface. Thorax 

 rather finely and not closely punctured on the disc, more coarsely and closely at 

 the sides; strife of punctures moderately distinct at the sides, although somewhat 

 confused, those of the disc, especially near the scutellum. very miudi confused ; 

 humeral spot extending inward to the third or fourth stria, at the sides covering 

 the entire epipleural lol)e, extending more than a third toward the apex, epi- 

 lileural lobe rounded. Body beneath den.sely finely punctured and cinereo-iui- 

 bescent. Length .12 — -.15 inch.: 3 — .3.75 mm. 



The only species with which this might be mixe<l is ><o)ton'iisii<, 

 which has a more coarsely and closely ])unctured thorax and much 

 less shining surface. The epipleural lobe is again more obtuse than 

 in the two preceding species, although less so than in mucia. 



Occurs from New Jersey to (ieorgia, T(>nnessee and Texas. 



S. !«aucia Lee, Pacific R. R. Rep. 1857. p. (Ui ; Insignata (Clythra). Walker, 

 Nat. in Vane. vol. ii.— Deep blue, thorax more shining, elytra rather dull. Head 

 dull, alutaceous, sparsely punctate, on the dypeus more distinctly. Thorax very 

 finely and indistinctly punctate on the disc, more coarsely close to the side and 

 near tlie apex. Elytra with the rows of punctures indicated, but much confused, 

 especially near the scutellum ; humeral spot not large, covering ie.ss than l-.alf 

 the epipleural lobe, the latter regularly rounded, without trace of angulation. 

 Body beneath densely finely punctulate and cinereo-pubescent. Leniitli .It!— 

 .20 inch. ; 4--5 mm. 



In this species the umboiial spot is of oval foiMii. It does not ex- 

 tend inwards further than the fifth row of punctures, and but rarelv 

 involves more than tlie half of the epipIiMira! lobe. The characters 



TRANS. AM. ENT. .SOC. XIX. (2) .JANUARY. 1892. 



