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Psyche 1:145-147, 1874.

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PSYCHE.
ORGAN OF THE CAMB.RJDGE ENTOMOLOGICAL CLUB EDITED BY B. L'ICKMAN MANS.
Vol. I.] Cambridge, Mass., March, l87'6. [No. 23. List of Coleoptera collected in Michigan in 1874. Among a large number of species of Coleoptera collected in Michigan by Mr. H. G. Hubbard and myself, during the year 1874, those mentioned in the following list will be found of some interest. Where no locality is given, the species were collected in the vicinity of Detroit.
Omopkron robusturn Horn.
A single specimen on the shore of Lake Erie near Monroe, in September.
Schizogenius ferruginous Putz.
With the preceding, not rare.
Dtcaelus purpuratus Bon.
The larva of this species is very beautifully colorcd, and was found in rotten logs, in the middle of August; it under- goes its transformation in this place, and the imago appears about the be- ginning of September.
Bembidium antfuliferum Led1 Very rare under decaying leaves; pre- viously found only in California.
Hydroporus rotundatus Lee. In the Detroit River, rare. Helophurus intervulatus Gyllh.
Not common near Detroit.
Philhydrus consors Lee. Much rarer than Ph. cinctus Say. Cercyon unipunctaium Linn. and C. centrimaculatun St. Not rare, on the window of a stable, in October.
Cercyon naviculare Zimm. Abundant in decaying fungus. Ndssidium americanum Mots? In a kind of Polyporus not rare in July. Rilium Collani Makl.
Common in decaying fungus.
Smicrusjlicornis Fairm. Under decaying hay, in October, not rare. Pterp balteata Lee.
In rotten wood and sphagnum moss, not rare. Ptinclla quercus Lee. Under old bark of oak, elm and other trees, common. Homalota Mannh. To give some idea of the number of species of this 1 For the determination of this and many of the following species I am indebted to Dr. Leconte.
1 It may he not without interest to state that a species of Motschulskium, very prob- ably identical with M. s~uatocolle Matth., was found abundantly by Mr. Crotch at San Diego, Gal., under seaweed.




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genus, inhabiting the United States, it may be stated that about sixty spe- cies were found in the vicinity of Detroit in a single season. Calodera Mannh.
Of this genus, which is very easy to recognize, three species were found near Detroit; three others are not rare in the marshes near Cambridge, Mass.; all the species live under very wet decaying leaves and moss.
Oligota pedalis Lee. Very rare under decaying leaves. Myllaena fuscipennis Kr. Not rare under stones, etc., near the Detroit Riv. Dinopsis americana Kr. Under decaying leaves in fall and winter, not rare. '' myllaenoldes Kr. With the preceding, but much rarer. Tachyporus nanus Er. aud T. maculipennis Lee. Both are common in the grass at the foot of old oak trees.
Tachyporus affinis Kirb. Rare in decaying fungus. Conosoma Knoxii Lee. Not rare in fungus, in the fall. Bolifobius niger Grav.
Very rare in fungus.
Bryoporus rufescens Lee., B. testaceus Lee., Mycetoporus lepidus Grav., M. americanus Er. and M. lucidulus Lee., occur rarely under decaying leaves ; M. flavicollis Lee. is common in the same localities. Heterothops fumigatus Lecl
Common under decaying leaves.
" push Lee. Very rare.
Philonthus Uandus Grav. and Ph. laefulus Say are two quite distinct spe- cies; both are to be found not rarely in fungus. Xantholinus cephalus Say. Common under bark of several kinds of trees. Thinobius Kr. A single specimen of an undescribed species was found by sweeping on a swampy meadow; a second species occurs in California. Trogophloeus Maunh.
This genus seems to be very rich in species, fif- teen or sixteen species being observed by us near Detroit. Isomalus pallidus Lee.
A single specimen in a little ditch, after a heavy rainstorm.
Pseudopsis sulcata Newm. .Several specimens in decayingffungus. Bythinus zonatus Br. Two specimens sifted from sphagnum moss. Trimium dub Lee.
Not very rare under dry old leaves.
Catops brunneipennis Mannh. Several specimens under decaying leaves. Colon dentatum Lee. and two other species of the same genus, Anisotoma punctatostriata Kirb., A. collaris Lee., A. obsoleta Melsh. Cyrtusa egena Lee., C. picipennis Lee., Colenis impunctata Lee., Clambus gibbulus Lee., Cybocephalus nigritulus Lee., etc., are found by sweeping meadows at sun- set, in the latter part of June.
Anogdus laevis Lee.
Several specimens under old bark, in August. Clambus puberulus Lee. On a window of a stable, not rare, in August. Orthoperus glciber Lee. and two other species of the same genus, by sweeping on grass.
Baeocera concolor Fabr. and B. apicalis Lee. Rare in fungus. An undescribed species of Tanygnathus Er. occurs in Florida.



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