of nondescript Lucanoid Coleoptera, 8fc. 345 
of the species of the group, crenulated as in them, and 
with nothing analogous amongst the MeJolonthida ; the 
legs, it appears to me, settle the question beyond a doubt, 
for in no group of Lamellicornia do we meet with this 
characteristic form of the anterior tibicB, so elongate, square 
at the apex, dilated at the i\\), dentate like a saw behind 
the large teeth ; the tarsi with the claws very large ai'e 
identical with those of Mitophyllus ; the body has entirely 
the form and characters of those of the Lucanidce ; the 
margined abdomen fitting close to the reflexed margin of 
the elytra is entirely that of a Lucanid, although this 
character is found in many Lamellicornia ; lastly, the 
mandibles and palpi agree in every respect with those of 
the family to which your insect should be referred ; and 
I repeat that I entertain not the slightest doubt and do not 
hesitate to consider it a Lucanid, and think that you will 
participate in this opinion." 
Obs. — I should remark that Dr. Leconte has already 
suggested the reference of this insect to the Lucanidee. 
Vide my observations, Proc. Ent. Soc, 7 February, 1870. 
— F. J. S. P. 
Nicagus obscurus. (PI. V. fig. 8, a. b.) 
Ochodceus obscurus, Leconte, Act. Philad. 1848, p. 86. 
Nicagus abscurus, Leconte, Classif. Coleop. N. Am. 1861, 
p. 136. 
Parry, Proc. Ent. Soc. 1870, p. iii. 
Westwood, Proc. Ent. Soc. 1870, p. ix. 
EXPLANATION OF PLATE V. 
1. Odontolahis Loivei, $ . Parry. 
2. Metopodonttis Blancliardi, $ . Parry. 
3. Prosopocoilus Mohniki, $ . Parry. 
4. Lissotes capita, $ . H. Deyrolle. 
5. „ » $. Parry. 
6. Nigidius criiricolUs. Parry. 
7. „ distinctus. Parry. 
8. Nicagus obscurus. H. Deyrolle. 
a. „ „ (antenna). 
b. „ „ (labium). 
