— 196 — 



L. cordifera Oliv., 1795, Ent. iv, p. 25, t. 4, fig. 41; Lee, J. A. P. ser. 2, i, p. 

 332; abdoininalis Dej. Cat. 3ed.; rosariim Lee, 1. c. ; lunaris 

 Hald., Trans. Am. Phil, x, p. 59. 

 Length 10 — ^13 mm.; .40 — -.52 inch. Hab. — New Hampshire, Massachu- 

 setts, New York, New Jersey, Pennsylvania, Virginia, North 

 Carolina, Georgia, Michigan, Maryland, Lake Superior. 



L. instabilis Hald., 1847, Trans. Am. Phil, x, p. 59; Lee, J. A. P. ser. 2, i, p. 

 332; convexa Lee, 1. e ; quadrata Lee, S. I\L C. No. 264, p, 

 225. 

 Length 7 — 13 mm.; .28 — .52 inch. Hab. — New Hampshire, Montana, 

 Idaho, Wyommg, Oregon, Washington, California, Nevada, 

 Colorado, Kansas, New Mexico, Saskatchewan. 



This species and the preceding are continually confused in col- 

 lections; the differences and variations in color are pointed out in 

 the synoptic table. It will be noted that cordifera is an eastern spe- 

 cies, and instabilis a western, though the localities overlap somewhat. 

 The specimens in collections are usually banded and labeled convexa, 

 and the name instabilis retained for those with the bands broken 

 into spots. I propose to extend the name quadrata Lee. to the 

 form which is entirely black, it having been originally applied to a 

 specimen nearly black, with antennae and legs ferruginous. 



L. sexmaculata Linn., Syst. Nat. ed. x, p. 398; Oliv.. Ent. iv, 73, p. 26; Kby., 

 1837, Fn. Bor. Am. iv, p. 182. 

 Length 9.5 mm.; .38 inch. Hab. — Colorado, Michigan, New Hampshire, 

 Vancouver, Lake Superior, Canada. 



This insect is common to our northern latitudes and those of 

 Europe. 



L. vexatrix Mann., 1853, Bull. Mose lii, p. 250. 



Length 10.5 mm.; .42 inch. Hab. — Kenai, California. Nevada, Oregon. 



This species has been confused with the preceding form, which 

 it differs by the characters of the table. 



L. sexspilota Lee, 1859, Proe Ac. Phil. p. 80. 

 Length 9 mm.; .36 inch. Hab. — California. 



L. matthewsii Lee, 1869, Ann. Nat. Hist, iv, p. 384. 



Length 14 mm.; .56 inch. Hab. — Vancouver, Washington, California. 



L. grossa Lee, 1875, S. M. C. No. 264, p. 225. 



Length 18 mm.; .72 inch. Hab. — California. 



L. brevicornis Lee, 1. e 



Length 18 — 19 mm.; .62 — .76 inch. Hab. — Washington, Nevada. 

 L. nigrella Say, 1827, J. A. P. v, 2, p. 279; nigrita Dej. Cat. 3 ed. 



Length 10 — 15 mm.; .40 — .60 inch. Hab. — Hudson's Bay, Michigan,. 

 Washington, Nevada, Colorado, New Mexico, Canada, Lake 

 Superior, Georgia, Maine. 



