133 
sept. 1897.] Hayward : Coleoptera of N. E. America. 
union of tubercles 11a and i on the thorax. In other respects there is 
present only a normal primitive first stage, just as in S. virginica , except 
for the purely specific characters of less cornified smaller tubercles, etc. 
Ctenucha virginica. 
Tubercles well developed, set* all single as in C. auge, but in addi¬ 
tion subprimary vi is present on abdominal segments i to 8: no sub- 
primaries on thorax. 
This represents in the Euchromiid phylum the same stage reached 
by H. cunea in the Arctiid branch, but not quite fully as there is here 
no trace of the subprimaries on the thorax. 
EXPLANATION OF PLATES VII AND VIII. 
Fig. i. Spilosoma virginica, stage I. Fig. 5. Halisidota caryse. Fig I 
“ 2 ' S P ,losoma antigone, « « .. 6 . Cosmosoma auge, <• 
“ 3 ' HyPhantria cunea, <• « « 7 . Ctenucha virginica, *< « 
“ 4. Halisidota maculata, “ « 
PRELIMINARY HAND-BOOK OF THE COLEOPTERA 
OF NORTHEASTERN AMERICA. 
By Roland Hayward. 
(Continued from Vol. V, p. 40.) 
The present part of the “Hand-Book,” relating to Bembidium, has 
been prepared at the request of the Editor of this Journal, made some 
time ago, but the fulfilment of which has been unavoidably delayed. 
.' m faCt ’ an abrid gment of a larger paper on the species occurring 
in America north of Mexico, which the author had in preparation at 
h t, the rCqUeSt WaS m3de ’ and which has on[ y recently been 
the '! H ( Trans ‘ Am “- Ent - Soc -> i8 97 > xxiv, pp. 32-143). To this 
he student is referred for more complete descriptions, as well as for 
bibliography and synonymy. 
In order to economize space, the species have not been arranged in 
groups, as has been done in the paper above cited, but are all included 
>n one table. It will be observed that in all but two of our species 
(avigatum and semistriatum) the dorsal punctures of the elytra are 
confined either to the third interval or to the third stria. In those just 
cited, however, they are arranged in irregular rows on all the intervals, 
