60 BULLETIN BROOKLYN ENTOM. SOC. VOL V. December 1882.] 
PASSALUS. 
" (passalus—=a post.) 
‘14 cornutus, Fabr. Syst. El. II, 256, Beauv.Ins. Afr. et Am. I, 1] 
I, £1. disjunctus, Ulig, edit. Oliv. I, 78. distincfus, Web. Obs. 
Entom. I, 79; Percheron, Mon. p. 99. t. 7, f. 6. imfrrupius Q, Lin.¥| 
Mus. Lud. Ulr. p. 35; Olivr. Ent. 1, p. 25, t. 3, f£ 5. Yo well knownml 
as to need any description and well represented on the plate. 
The larva is remarkable for having the four anterior legs nor- 
2 mal, but the posterior aborted, has been described’ by Burmeister, 
Handb. V, 451, Chapuis. and Candeze Mem. Liege. VIII, 467 t.4. 
f. 5, and also by Schioedte Nat. Tidsskrift, Vol. IX, p. 356. pig 
+= XVIII, figs. 12-19 and pl. XIX, fig. 17. N.Y. to Florida, Texas:§ 
“~e 32 to 38 mm. 
The antennz of this species are unique, separated from all others of 
14. this group by the deeply emarginate mentum and peculiar form, the 
antennze place it between Yorcus and Ceruchus. Having them straight as 
in the latter genus, the club is formed like that of the former, from both’ 
it differs by the dense clothing of hair on each joint, and by the small, 
perfectly cylindrical 2nd joint; the fig. 14 precludes the necessity of fus-: 
ther description. | } 
Explanation to Plate. 
1. Lucanus elaphus, 7: 6. Platycerus quercus, 11. Ceruchus piceus, 12d. © 
2 G6 dama, /. 7.  ** oregonensis, Ws/w. 12. Sinod. rugosum, Jam. | 
3 ee mazama, Lec. 8. ‘© Agassti, Lec. 13. Passalus cornutus, 7. 
Bie Od placidus, Say. 9g. “* depressus, Lec, 14. Larva ‘of 2: 
5. Dorcus parallelus, Say. 10, Ceruchus punctatus, Zec. 15, 16 Larva & pupa of 11. | 
17. pupa of 13. 
