1800.] 273 
Genus Ntotalemon, Dalman. 
5. — Nyctdlemon zodiaca, Butler. 
(^ $ Al(S supra nigrcB, ad basin virescentes, fascia media communi 
lata, aureo-viridi ; anticcB fascia altera lineolari, suh-apicali, pallidiore, 
siriolisque costalihus ad basin aureo-albidis : posticcB caudd cceruleo-albd, 
ciliis albis ; macula sqttamisque sub-marginalibus analibus : corpus virescens, 
abdomine pallidiore. 
Alcd subfus pallide virescentes, fasciis fere velut in I^. Orontarid, 
Hiibner (^Orontes, Linn.), maculis autem posticis sub-apicalibus in margi- 
nem sub-rotundatis viridlbus : corpus tJiorace albido, abdomine aurantiaco, 
cirrhis maris analibus perlongis, oclireis. Exp. alar. unc. 4, lin. 7. 
N. China (obtained 1857, from Mr. Fortune's collection). B. M. 
This is the Orontes of Mr. "Walker's catalogue, but is quite distinct 
from the Orontes of Linnaeus and Clerck . 
6. — Nyctalemon Zampa, Butler. 
^ Fapilio (iV.) Fatroclus, Drury, 111., 1, pis. 7, 8, fig. 1 (1770) ; 
"Walker, Lep. Het., 1, p. 8, n. 2 (1854) ; but not of Linnseus. 
$ Alee multo majores, pallidiores, colore fundi discalis post fasciam 
mediam magis diffuso, aredque apicali angustiore ; subtus, fascia media 
alba latior, aliter velut in mare. 
Exp. alar. unc. 6, lin. 7 ; S ^iic. 5, lin. 11. 
S, Silhet (obtained 1845, from the Eev. J. Stainsforth). 
? , ? (from Mr. Children's collection). B. M. 
This species is evidently quite distinct from the Patroclus of Lin- 
nseus (Clerck's Icones, pi. 37, fig. 1), which may possibly be the female 
of Patroclaria, Hiibner {Patrochis, Cramer, Pap. Exot., 2, pi. 109, figs. 
A, B), this species, however, seems again distinct from its near ally the 
Hector of Walker, which we have from Borneo and the Philippines. 
British Museum : March, 1869 
Aplwdius porcus, a cuclcoo parasite on Geotrupes stercorari^is. — Last autumn, I ex- 
amined the economyof Geotrupes stercoraruis in the matter of oviposition,and in doing 
so met with the unexpected fact that Aphodius porcus was parasitic upon it. As such 
a habit must bo regarded as a highly abnormal one in a Lamellicom beetle, and 
consequently requires a considerable amount of proof to establish it, I have given 
my observations somewhat fully, and have added an account of the oviposition of 
Geotriopes stercorarius, both because it is necessary towards understanding the 
proceedings of Aphodius porcus, and because, though supposed to be known by 
eveiyoiie, no one appears to be acquainted with the details of it, nor have I been 
