Typua Insects: THEIR EicotocicaAL RELATIONSHIPS 497 
above; interspaces and sides of dise coarsely punctate. Elytra broadest at humeri, sides 
feebly converging to apical fourth, then more strongly to the rounded apex; striae with rather 
coarse, regular punctures; the broader and more convex intervals somewhat interrupted, 
minutely and sparsely punctate. Length 11-15 mm. 
Notaris puncticollis Lec.* 
_ According to Blatchley and Leng (1916), Notaris punceticollis Lec. 
(Plate XLVIII, 83) ranges from Newfoundland and Quebec to Minnesota 
and as far south as the Ohio River. The host plants reported for this 
species are cabbage, Peltandra virginica, and Typha latifolia. Webster 
(1893), writing of Notaris puncticollis, says: 
In Wayne County, Ohio, a field of this swamp land was underdrained last year, and last 
January was plowed; no further cultivation being given it until late spring, when it was 
prepared and planted to cabbage, about 50,000 in number, set late in June. These have been 
attacked and many of them destroyed by the adults of two species of Rhynchophora (Listro- 
notus appendiculatus Boh, and Erycus puncticollis Lec.).. The former is supposed to be the 
chief depredator, though I myself saw the latter attacking the plants. First, great cavities 
are gouged out of the stems of the young plants, and later the base of the larger leaves are 
attacked from beneath....... It is not unlikely that one and perhaps both of these species 
breed in Sagittaria, though I have some reasons for suspecting that the Erycus may breed 
in the common Typha latifolia or cat-tail. 
On August 19, 1915, at the field station in Renwick Marsh, 
W. A. Hoffman found the adult of Notaris puncticollis Lec. in the burrow 
in the stem of Typha. The burrow appeared very much the same as 
that of Calendra pertinax. ‘The writer, however, has not been able to 
find this species during the course of his studies. 
HEMIPTERA 
Ischnorrhynchus resedae Panz.$ 
Ischnorrhynchus resedae Panz. is an insect belonging to the family 
Lygaeidae. It is of general distribution, being reported from Europe, 
Asia, Central America, Mexico, Canada, and the United States. Among 
its host plants are included birch, conifer, heath, arbutus, Typha latifolia, 
and 7’. angustifolia. ‘The two species of Typha are here reported for the 
first time. 
Life history and habits 
Egg-laying.— The eggs are laid in the spring, during May and June. 
They are deposited singly in the pappus of the old cat-tail heads of the 
* Determined by C. W. Leng. 
6 Determined by Dr. H. H. Knight. 
