HISTER. 201 
12. Hister sexstriatis. 
Hister sexstriatus, Lec. Ann. Lyc. N. York, v. p. 163*; Mars. Monogr. in Ann. Soc. Ent. Fr. 1854, 
p- 290, t. 8. fig. 86°. 
Hab. Norrn America, California ! 2.—Mexico, Oaxaca ({Hége). Four examples. 
13. Hister pioti. (Tab. V. fig. 9.) 
Hister pioti, Mars. Ann. Soc. Ent. Belg. xiii. p. 88 (1870) *. 
Hab. Guatemata, Quiche Mountains 9000 feet (Champion).—Amazons |. 
An example found by Mr. Champion in Guatemala is referable to this species. 
14. Hister litus. 
Hister litus, Mars. Monogr. in Ann. Soc. Ent. Fr. 1861, p. 541, t. 18. fig. 31". 
Hab. Mexico!, Jalapa (Hége). 
15. Hister punctiventer. 
Hister punctiventer, Mars. Monogr. in Ann. Soc. Ent. Fr. 1854, p. 543, t. 9. fig. 114°. 
Hab. Mexico (Laferté1), Puebla (Sallé), Durango city, Tula, Jalapa (Hoge). 
16. Hister truncatisternum, sp.n. (Tab. V. fig. 14.) 
Ovalis, convexiusculus, niger, nitidus; fronte punctulata, stria integra antice subrecta; pronoto tenuissime 
punctulato, stria interna crenulata, integra, externa interrupta; elytris striis 1*-3™ integris validis, 
4 basali, 5* nulla, suturali abbreviata ; propygidio pygidioque parce punctatis; prosterno parum lato, 
punctulato, haud striato; mesosterno marginato, antice recto, stria crenulata integra. Long. 43-53 
millim. 
Hab. Mexico, Chihuahua city and Santa Clara (Hoge). 
This Hister belongs to the same group as H. incertus, Mars., and resembles H. recti- 
sternus, Mars., in the anterior outline of the mesosternum. The line which indicates 
the suture between the meso- and metasternum is minutely angulate in the middle, 
as though the mesosternum was acutely produced. In the eight examples under 
examination, four have the outer thoracic strie not shortened, and four have them at 
the anterior angle only. The fourth stria of the elytra is also sometimes obliterated. 
17. Hister californicus. 
Hister californicus, Mars. Monogr. in Ann. Soc. Ent. Fr. 1854, p. 544, t. 9. fig. 115 , 
Hab. Nortu America, California !.—Mzexico, Ciudad in Durango (Forrer), Jalapa 
(Hoge), Parada, Toluca, Guanajuato (Salié). 
18. Hister lucanus. 
Hister lucanus, Horn, Proc. Am. Phil. Soc. xiii. p. 283 (1873)’. 
Hab. Nortu America, Lower California 1.—Mexico (Flohr). 
BIOL. CENTR.-AMER., Coleopt., Vol. II. Pt. 1, June 1888. 2 D* 
