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Nearly all the species of Dolerus are abundant in Spring, and are 
attracted to the sap oozing from stumps, etc., and to the alder and willows 
when in bloom. 
Hemichroa. 
H. americana, Prov. (Di?ieuto) i female. June 26th. (Hull 1884.) 
Blennocampa. 
B. paupcra, Prov. 3 females. May 8th, 9th. 
B.parva, Cress. 1 female. June 10th. 
B. carbonaria, Cress (?) 1 female. June 19th. 
MONOPHADNUS. 
M. tardus, Say. 1 male, 6 females. May 25th, June 23th. 
The white larva? of this handsome red-shouldered sawfly, feed on 
the foliage of the ash, and have sometimes completely stripped trees in 
this city. 
H. medius, Norton. 2 males, 12 females. May nth, July 12th. 
H. rubi, Harris. 5 males, 8 females. May 12th, 27th. 
The pale green, spiny larvae of this species defoliate the wild and 
cultivated raspberry. 
Phymatocera. 
P. fumipennis, Norton. 8 males, 10 females. May 17th, June 14th. 
P. nigra, Harr. 12 females. (5 Types) May 10th, 31st. 
P. montivaga Cress. (?) 1 female. 
HOPLOCAMPA. 
H. halcyon, Norton. 3 males, 15 females. May nth, 17th. Shadbush. 
MONOSTEGIA. 
M. rosce, Harris. 16 females. May 19th, June 9th. 
The slug-like larvae of this species are very injurious to roses, and 
are more generally known than the larvae of the two species (C. pec- 
tinicornis, and E. cinctus) already noted as infesting these favorite 
plants. The small black fly is very abundant in June. 
M. maculata, Norton (Emphytus) 25 males, 63 females. May 1st, 
June 28th. 
