June 1899.] Casey: Ox Americam CoCCINELLIO/E. 101 



species in my cabinet inhabiting tlie United States may be readily 

 identified as follows : — 



Elytra without common sutural spots, the sutural margin pale 2 



Elytra with two common sutural spots at one-third and two-thirds from the base, the 



sutural margin narrowly black throughout 10 



2 — Elytral spots uniform in color throughout 3 



Elytral spots unequal in intensity of coloration among themselves 9 



3 — Middle of the three subbasal spots broadly confluent with the small spot on the 



callus, forming a single spot. Atlantic regions 4 



Middle spot narrowly united with the external basal spot, the latter semi-detached or 

 well defined by a deep strangulation ; elytral punctures minute and sparse. Pacific 



coast regions > 8 



4 — Each elytron with nine spots, some of which are more or less confluent among 

 themselves, the outer basal considered as having disappeared by fusion ; punc- 

 tures distinct 5 



Each elytron with a large discal reniform spot, the punctures minute and sparse 7 



5 — Form broadly oval, the elytral spots black 6 



Form narrowly oval, the elytral spots brown in color ; pronotum faintly punctulate, 

 the ante-scutellar spot distinct ; elytra much longer than wide, quite strongly but 

 not closely punctured, each with two large .subequal and approximate basal spots, 

 the inner more oblique, the outer rounded, aLso with two equal subsutural spots, 

 slightly elongate -oval, at ba.sal third and near apical fourth, three submarginal 

 at two-fifths, three-fourths and subapical, increasing in size posteriorly, a large 

 discal median spot fused with a smaller one in the same line at two-thirds, the 

 central spot equal in size to the suljapical. Length 2.15 mm. ; width 1.4 mm. 



Iqwa (Keokuk) obsoleta, sp. nov. 



6 —Pronotum finely but distinctly punctate, the ante-scutellar spot small but distinct ; 

 elytra strongly and very closely punctured, the spots well developed and occupy- 

 ing together as much area as the pale interspaces, arranged as in obsoleta, but 

 with the outer basal much larger and more prolonged posteriorly, and the sub- 

 apical much smaller, oblique and subdivided into two small equal spots, the two 

 discal confluent spots similarly united to the subsutural and submarginal spots 

 near two-thirds. Length 2.I-2.7 mm.; width 1. 6-2.0 mm. Rhode Island, 



New Jersey, Iowa and Wisconsin 20=tTiaculata Say 



Pronotum subimpunctate, the ante-scutellar spot obsolete ; elytra as in the preceding, 

 barely as long as wide, distinctly but much less closely punctured, the spots oc- 

 cupying nearly the same relative positions but very much smaller, the pale area 

 in excess, the spots all isolated, the submarginal at a much greater distance from 

 the edge, the outer basal smaller and not prolonged posteriorly, the subapical 

 quadrate. Length 1.9 mm.; width 1. 5 mm. Florida (Palm Beach). 



parvinotata, sp. nov. 

 7 — Body very small, roimded, with very minute sparse punctures ; pronotum subim- 

 punctate, the five spots present but pale brown in color ; elytra very pale yellow- 

 ish-white, with brown markings consisting, on each, of two subbasal spots, the 

 outer the larger and with a lobe on the callus, a small faint subsutural cloud at 

 one-tbird, a large bilobed discal spot extending from basal third to apical fifth, 



