ASH-TREE BORERS. 543 
the inoth on account of parasites. Miss Murtfeldt has observed the 
same caterpillar in the twigs of the maple (Acer dasycarpum). It seems 
to bore indifferently into any plant with a soft stem or twig. (Can. 
Ent., xv, p. 174.) 
6. The ash tree clytus. 
Neoclytus caprcea Say. 
Order Coleoptera ; family Cerambycidje. 
Under the name of ash-tree borer Mr. 0. Thomas, besides stating 
that the larva of this species bores in the ash, adds that it is " quite 
common in southern Illinois." 
Mr. Shelby Keed, of Scottsville, ^. Y., iu 1880, refers briefly, in the 
American Entomologist, to u the wide-spread destruction of the black 
ash forests" in his vicinity, and speaks of the web- worm (Hyphantria 
cunea) and a root-borer as affecting them. Professor Riley, the editor 
of the journal, in commenting on his letter suggests that the injury 
was due rather to the root-borer (probably Neoclytus caprcea Say) than 
to the web- worm. 
Beetle. — Dark brownish-purple head ; and thorax darkest ; eyes nearly circular, 
behind them a narrow yellow border; thorax barrel-shaped, deep purple, surrounded 
by three very narrow yellow lines, one at each end aud one in the middle ; scutel 
yellow ; wing-cases crossed by three yellow bands ; first, a semi-circular band from the 
scutel running backwards and round up to each shoulder; then another of similar 
shape about the middle, with the circle reversed ; then a straight band, and a strong 
spine at the tip of each ; length, half an inch ; width one-seventh of an inch. 
7. Tylonotus bimaculatus (Hald.). 
Order Coleoptera; family Cerambycidje. 
This beetle was by its original describer, Haldemann, said to in- 
habit the ash, and Mr. A. S. Fuller, according to Riley, also reports it 
as living in the black ash. Mr. Bland (Proc. Ent. Soc. Phil., i, p. 59) 
records it as " found under the bark of the tulip-poplar." * 
Beetle. — The genus Tylonotus is allied to Elaphidion, but differs according to Le 
Conte in the femora being strongly club-shaped, and the antennae bisulcate. 
8. The ash timber-be e/tle. 
Ilylesinus aculeatus Say. 
Order Coleoptera ; family Scolytid^e. 
Ash posts in Kansas have been found by Mr. W. Knaus to be ten- 
anted by this borer, though no growing trees were found which had 
been attacked, those only having been selected which were already in 
a decaying condition. 
" The burrows of this insect were almost facsimiles in every particu- 
lar, consisting of a large central channel from 25 to 100 mm in length and 
l mm in width, made by the female, the young larva eating its way out- 
