20 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
BuMastTus INSIGNIs (Hall). 
Illaenus insignis Hall, 18th Rept. N. Y. state cab. nat. hist., 1865, p. 27, f. 5, 
6 adv. sheets; 20th Rept. N. Y. state cab. nat. hist., 1868, p. 331, f. 5, 6, 
pl. 22, f. 13, 14; 1870, rev. ed., p. 419, f. 10, 11, pl. 22, f. 13, 14. Weller, 
Bull. Chicago acad. nat. sci., 1907, no. 4, pt. 2, p. 215, pl. 17, f. 1-5. Not 
of Salter, Whitfield, Foerste, and Kindle. (See Weller, op. cit.). 
It is interesting to note that though Hall cites Waukesha and 
Milwaukee, Wisc., first in his list of localities for this species, the 
species is not known at all from Wisconsin, and the specimens which 
Hall figured were undoubtedly from near Chicago. Whitfield’s 
Illaenus insignis was B. cuniculus (Hall). The English specimens 
figured by Salter as belonging to this species, show the same long 
furrows and cephalon with a lip, but the front of the head is not so 
pointed. The eyes of the English form are likewise less elongate and 
further back than in specimens from near Chicago. It seems probable 
that the English form deserves a distinct name, and B. pomiata, the 
name used by Salter on the plate of his publication, is still available. 
Bumastus toxus Hall. 
Illaenus (Bumastus) barriensis ? Hall, Geol. surv. Wisc., 1862, 1, p. 433, (no 
description); 18th Rept. N. Y. state cab. nat. hist., 1865, p. 28 adv. 
sheets; 20th Rept. N. Y. state cab. nat. hist., 1868, p. 332. 
Illaenus ioxus Hall, 20th Rept. N.Y. state cab. nat. hist., 1868, p. 387, fig., 
pl. 22, f. 4-11, pl. 23, f. 1. Whitfield, Geol. Wisc., 1882, 4, p. 304, pl. 21, 
f. 11, 12. Foerste, Proc. Boston soc. nat. hist., 1890, 24, p. 268, pl. 5, 
f. 20. Van Ingen, School of mines quarterly, Columbia univ., 23, 1901, 
p. 35 (no description). Kindle, 28th Ann. rept. Dept. geol. and nat. res. 
Indiana, 1904, p. 480, pl. 22, f. 7, pl. 23, f.3. Weller, Bull. Chicago acad. 
sci., 1907, no. 4, pt. 2, p. 222, pl. 18, f. 1-3. 
Illaenus (Bumastus) ioxus Hall, 20th Rept. N. Y. state cab. nat. hist., 1870, 
rev. ed., p. 420, f. 12, pl. 22, f. 4-10. ? 11th Rept. Dept. geol. and nat. 
hist. Indiana, 1882, p. 335, pl. 38, f. 14, non 13; Trans. Albany inst., 
1883, 10, p. 76. 
The status of the name of this species is somewhat like that of 
Cheirurus niagarensis. In the Pal. N. Y., 2, Hall identified the rather 
common large Bumastus of the Rochester shale as B. barriensis 
Murchison, and in his earlier references to the Wisconsin specimen he 
