APPENDIX.
2§5
lines of the elytra are convex, whilst those of micans are nearly flat.
CISTELA, Fair. Latr.
1.  C. binotata. Blackish, sericeous; elytra with a humeral rufous spot.
Inhabits North-west Territory.
Body black, polished; in a particular light sericeous both above and beneath with small hairs, which do not, however, at all conceal the punctures; head punctured; palpi and three basal joints of the antennse rufous-yellow; thorax with equal large dense punctures; very slightly contracted behind, rounded before; posterior angles not prominent; an abbreviated longitudinal impressed line at base, on each side of which is an obsolete dilated impressed lunate space; elytra densely punctured, and with punctured strise; humeral gibbosity rufous; feet dull rufous, sericeous.
Length nearly three-tenths of an inch.
2.  C. sericea. Pale testaceous, sericeous; striae of the elytra obsolete.
Inhabits United States.
C. sericea, Knoch in Melsh. Catal.
Head minutely punctured, transverse impressed line before the antennse very obvious; thorax semioval, a little truncate before and not undulated behind; posterior angles rectangular; elytra hardly perceptible, darker towards the tip, rather lighter at base; striae obsolete, excepting two next the suture which are distinct; wings a little dusky, particularly towards the tip; feel somewhat paler than the body.
Length one-fourth of an inch.
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