THE CANADIAN ENTOMOLOGIST. 201 



ing brown ; pile of abdomen erect and largely black. Front and middle 

 femora destitute of bristles. Wings yellowish gray, a hyaline streak in 

 base of marginal cell, a darker gray cloud in apex of first submarginal 

 and along front edge of the second submarginal cell ; stigma and a small 

 spot at base of the second submarginal and of each posterior cell, dark 

 brown ; fourth posterior cell closed and short petiolate. 



Length, 10 mm. Washington. Received from C. W. Johnson, and 

 collected by Prof. O. B. Johnson, after whom, the species is named. 



SOME NOTES ON MICHIGAN INSECTS, PRINCIPALLY 

 COLEOPTERA, AFFECTING FOREST TREES. 



BY C. II. TYLER TOWNSEND. 



The following notes were presented to the Entomological Society of 

 Washington, May r, 1890, under the title of "Some insects affecting cer- 

 tain forest trees." They are herewith somewhat revised and sifted for 

 publication, since the matter which follows is of some value. 



The paper furnishes a record of certain insects mostly coleopterous, 

 which I found many years ago in Michigan affecting either the trunks or 

 foliage of forest tress and shrubs and which I have since been able to 

 identify in connection with my notes. All are southern Michigan 

 records, and belong to the vicinity of Constantine. Many coleoptera 

 found under dead bark, but which feed merely on decaying vegetable 

 tissue, have been omitted. Such are Prionochseta, Scaphidium, Ditoma, 

 Bactridium, Melanotus, Cis, Tenebrioides, Melandrya, Uloma, Platy- 

 dema, Penthe, Cratoparis, and many others. 



Coleoptera. 



Brontes dubius, F. — Under bark of linden (fall) ; elm and butternut 

 logs (May). 



Paromalus aequalis^z.y. — Under bark of decaying butternut and linden 

 logs (May).' 



Hister lecontei, Mars. — In burrows under decaying bark of butternut, 

 elm, and linden. 



Adelocera aurorata, Lee. — One under bark of old oak log (Jan.) 



Alans oatlatus, L. — Boring stumps and dead trunks of oak, hickory, 

 poplar and linden. 



