68 THE EEPOET OF THE No. 36 



Characteristics and Classification. 



The Coccids belong to the order Hemiptera and to the suborder Homoptera, 

 which includes the Aleyrodidae, Psyllidge Jassidae, Membracidae, Aphididse and 

 Cicadidge. These females bear a striking resemblance to each other, which is es- 

 pecially noticeable in the immature stages of development. The larvae of the 

 Aleyrodidae are often mistaken for the female adult scale insect. Among the 

 Aphididge, Ceratophis lintanice is frequently mistaken for a Coccid and is known 

 by horticulturists as the "black seed scale." All the insects of this order have 

 sucking mouth parts, and with few exceptions, incomplete metamorphosis. In the 

 larval stages the male and female bear a close resemblance to each other, but in 

 the adult stages they are readily recognized. In the female the wings are always 

 absent; the metamorphosis is incomplete, with a mouth or rostrum placed on the 

 ventral surface. In the male the metamorphosis is complete, the mouth is obsolete, 

 usually a pair of wings, the posterior pair represented by a pair of halteres. 



Ortiieziin^. 



90. Orthezia americana (Walk.). This scale has been found at Grimsby, On- 

 tario, on Golden Eod; at Woodstock, Ontario, on Eagweed. It has also been re- 

 corded by Dr. Fletcher at Ottawa, and several places in Quebec. 



98. Orthezia insignis (Dough). This species was first found at the Fruit, 

 Flower and Honey Show, Toronto, in 1906. It was next seen in the conservatories 

 at Guelph in 19.07, and since that time the writer has collected it in many parts 

 of Ontario. 



103. Orthezia occidentalis (Dough), This interesting and beautiful species 

 was found by J. Wm. Cockle, Kaslo, B. C, on roots of grass and trees amongst 

 rotten wood. He remarks that he has found them in great numbers on several 

 occasions on the roots of apple trees, which had grown wild amongst a pUe of chips. 

 The specimens were identified by Prof. J. G. Sanders of Washington. 



Dactylopiin^. 



192. Aster olecanium variolosum (Eatz). This species was found by Dr. 

 Fletcher in 1900, on young oak trees at Ottawa, Canada, which were set out in 

 1895, and came from a nursery in Pennsylvania. It has been found destructive to 

 oaks at Niagara Falls, Ontario. 



242. Kermes galliformis (Eiley). These scales occur either singly or in clus- 

 ters on the twigs and branches of Eed Oak (Quercns rubra). It is beautifully 

 variegated with yellowish, gray and black, and nearly always accompanied by a 

 Lepidopterous parasite. It is found all through the Niagara District, in the city 

 of Toronto, and to some extent in the south-western corner of the Province. 



254. Kermes pettiti (Ehrh). This species was first found at Jubilee Point on 

 Kice Lake, near Peterborough, Ontario, by Dr. Fletcher, in 1899. The writer has 

 found this species at Guelph, Toronto, Ottawa, and other places in Ontario. It i« 

 very common and has a wide range in Ontario. 



255. Kermes pubescens (Bogue). The writer has found this species on oak at 

 Guelph, Toronto and Perth, Ontario, and is probably wide spread over the Province. 

 It was found abundant on each infested tree and undoubtedly does considerable 

 injury. It is usually found in the cracks of the bark on the trunk and branches. 



