266 



INSECTS INFESTING THE CONSERVATORY. 



Fier. 251. 



CHAPTER CTA'XVI. 



The Mealy-bug with Long Threads. 



( Dactijhtpim JovgijUU. — ( "oinstock.) 



Order, Hemiptera ; / p,,,,;!,.. (•,„.,.in.E. 



hub-order, Homoptera ; \ 



1 I I i I. [ i I I ll 111] 



The ineasureiueiits of insects in this work are f^iven in inches and lines. The above cut rep- 

 resents one ijich divided into lines and fractions thereof. 



[iulc.stiug green-liouriu plants ; a small ycllo\vi.<h bug thinly 

 covered with a whitish mealy powder.] 



Fig. 251.— Meal y-biig with long 

 threads, female, greatly enlarged — col- 

 or, yellowish. 



Professor Comstock has described 

 another kind of mealy-bug which 1 

 have not found in California ; the fol- 

 lowing is condensed from his original 

 description of this insect : " The female 

 (Fig. 251} is from two to two and a 

 hair lines long, and is of a pale-yellow- 

 ish color, sparsely covered^ with a 

 niealj' powder. The winged male (Fig. 

 252) is of a light olive-brown color. 

 The female dei)Osits eggs, but these 

 are so far develoi)ed that the young bug issues shortly after 

 the egg is laid. These insects are sometimes (|uite destructive 

 to green-housi- i>lants, especially to ferns." 



