Dec, 1903.] Leng : North American Coccineli.id.*:. 211 



In my series of this species, the outer basal spot of the elytra is in 

 some cases nearly divided and there is also a lack of uniformity in the 

 form of the discal spot as well as some inequality in the depth of color. 

 Crotch mentioned this species as a variety but did not name it. 



. P. tsedata Lee, 1857, Kep. Pac.*R. R. Exp., IX, p. 76. 



Pronotum .subimpunctate ; elytra with impressed sparse punctures; pronotuni with 

 five spots more or less nubilate ; elytral spots very irregular, the outer subbasal usually 

 completely or partly divided, many of the spots frequently coalescent and pale brown. 

 Length, 1.9-2.6 mm. = .08-. 10 inch. 



Occurs in Vancouver, Oregon, California. 



The variability of the elytral markings has led to the description 

 of several species, all of which seem to me merely forms of ttedata 

 and not actually geographical races or subspecies. In the series I have 

 received from the Pacific coast all these forms came from the same 

 locality at one time. For cabinet arrangement these names may be 

 used if desired : borealis and separata for those with uniformly dark 

 spots, the first when the outer subbasal spot is partly divided, the 

 second when the division is complete ; tcedata and deficiens for those 

 with black spots mingled with pale brown spots, the first when tw^o 

 distinct dark submarginal spots are present, the second when these 

 are lacking. 



P. nana Mtds., 1851, Spec, p. 181. 



More narrowly oval, ante-scutellar spot of pronotum very small ; elytra very 

 minutely sparsely punctulate, with two common sutural spots at one third and two 

 thirds from base, the sutural margin narrowly black, also with eight other spots on 

 each, two basal, one large triangular discal, two submarginal, two subapical, one 

 small discal, variously united ; elytra pearly white in color. Length, 2.5 mm. ^= .10 

 inch. 



Occurs in Cuba, Jamaica and Florida ; rare in collections. 



Thallassa montezumae Muls., 1851, Spec, p. 512. 



Body bluntly oval, convex, finely punctured ; dull metallic green above, head 

 with a small yellow spot ; antenna; yellowish, palpi green ; pronotum with anterior 

 angles narrowly yellow ; elytra each with a reddish irregular spot before the middle ; 

 beneath dull greenish- black, abdomen reddish-yellow, paler at the side, tarsi yellowish- 

 trochanters green. Length, 4.8 ram. = .19 mch. 



Occurs in Arizona and Mexico. 



This species is not rare in Mexico and has been found at Tucson 

 and Williams in Arizona. It may therefore be included in our list. 



EXPL.\NATION OF PLATES XIV AND XV. 

 Represents the tribe Coccinellini. A, underside of Anatis i^-punttata, showing 

 metacoxal line on first ventral segment at a. B, various structures much enlarged : 



