ENTOMOLOGY. 165 



midge (Cecidomyia leguminicola), white grub (Lachnosterna, sp.), clover 

 cutworm (Mamestra trifolii), zebra caterpillar (Mamestra picta), two 

 hymenopterous insects (Trichogramma pretiosa and Telonomnus sp.), 

 red-backed cutworm (Carneades ochrogaster), black army worm (Xoctua 

 fennica), striped cucumber beetle (Diabrotiea vittata), squash bug 

 (Anasa tristis), apple curculio (Anthonomus quadrigibbus), apple maggot 

 ( Trypeta pomonella), cigar-case bearer (Coleophor a fietcherella), pear slug 

 (Selandria cerasi), phylloxera {Phylloxera vastatrix), grape thrip (LJry- 

 throneura vitis), strawberry-leaf roller ( Phoxopteris comptana), red spider 

 (Tetranychus sp.), and black peach aphis (Aphis per sicce-niger). 



Root crops were attacked by the clover cutworm (Mamestra trifolii), 

 zebra caterpillar (Mamestra picta), and white grub (Lacnosterna sp.). 

 As parasites on the zebra caterpillar Trichogramma pretiosa and a new 

 species of Telonomnus are mentioned. 



Vegetables were attacked by the red-backed cutworm (Carneades 

 ochrogaster), striped cucumber beetle (Diabrotiea vittata), and squash 

 bug (Anasa tristis); fruits, by the apple curculio (A nthonomus quad- 

 rigibbus), apple maggot (Trypeta pomonella), (which has not hitherto been 

 known to attack fruit trees in Ontario), cigar case bearer (Coleophora 

 fietcherella), pear slug (Selandria cerasi), phylloxera (Phylloxera vasta- 

 trix), grape thrip (Erythroneura vitis), strawberry-leaf roller (Phoxopteris 

 comptana) (the two broods of which did considerable injury around 

 Picton in Prince Edward County), a red spider (Tetranychus sp.), and 

 black peach aphis (Aphis persica-niger). 



Injurious insects, etc. (Jour. Bd. Agr. [London], 4 (1898), 4, pp. 468- 

 480, Jigs. <!). — The stem eelworm (Tylenchus derastatrix), orchid beetle 

 (Xyleborus perforans), pine aphis (Laehnus pini), and fruit-tree beetle 

 (Scolytus rugulosus) are discussed. Injuries caused by the first appear 

 to be extending, wheat, oats, hops, clover, and onions being the prin- 

 cipal objects of attack, although attacks on the first are not very 

 common. In the hops other species (Heterodera sehactii) are also found. 

 Other plants noted as attacked are rye, beans, the grasses (Anthoxan- 

 thum odoratum, Holcus lanatus, and Poa annua), and various weeds, 

 viz, daisy, shepherd's purse, spurry, buttercup, cornflower, sow thistle, 

 etc. The worms which are briefly described are exceedingly hardy, 

 larva} having been revivified after being dried for two and one-halt' 

 years. This power of enduring drought greatly increases the chances 

 of distribution. Cold nearly suspends animation. A scarcity of food 

 causes the larvae to migrate upward to the surface where life is sus- 

 pended in the dry soil. 



The usual remedy of deep plowing, burning of refuse, allowing the 

 land to lie fallow, and the use of fertilizers are recommended, the mix- 

 ture thought best beiug 3 cwt. sulphate of potash and 1 cwt. sulphate 

 of ammonia, although 1 cwt. sulphate of iron, 1 cwt. sulphate of pot- 

 ash, and 1 cwt. sulphate of ammonia was nearly as good. For imported 

 clover 4 cwt. dissolved bones and 2 cwt. sulphate potash per acre was 



