THE CANADIAN ENTOMOLOGIST 281 



hardly do much harm owing to the lateness of the season. In 

 case its depredations should ever present a serious aspect, however, 

 it could easily be poisoned with an arsenical spray. 



On xAugust 3, 1915, the writer once more recognized a partially 

 grown caterpillar by its markings and form as the same species, 

 this occurring on a rose bush of a florist's place at Hammond, 

 Tangipahoa Parish, La. As the grower had made a practice of 

 picking off and destroying all such enemies on his plants, he had 

 kept his stock free from ravages. 



An inquiry dated October 30 of the same year, which was re- 

 ceived from Plaquemines, Iberville Parish, La., brought the species 

 to further notice by referring to a specimen of worm which was 

 destroying rose bushes. Inspection of the accompanying material 

 revealed a partly grown caterpiller answering in all particulars to 

 the bindweed prominent. 



A NEW SPECIES OF PHENACOCCUS 

 (HEMIPTERA, HOMOPTERA). 



BY A. H. HOLLINGER, COLUMBIA, MO. 



Phenacoccus pettiti, sp. nov. 



^E.§,s- — Apparently just deposited under th^ body of the adult 

 female with only a few fine, white, waxy hairs to hold them to- 

 gether, but not enough to be called an ovisac; egg-shells white. 



Young. — Lemon or straw-coloured, about 5 mm. long; ovoid 

 with rather broadly rounded extremities; antenna and legs pale 

 yellow; antennae about one-half the length of the body or the length 

 of the transverse diameter of the body; very active; eyes blackish; 

 apparently ventrally placed and far apart; a stout, white waxy 

 spur arising from between the anal lobe's. 



Adult female — .About 2.5 mm. long and 1.3 mm. wide; oval- 

 elliptical; somewhat truncate across the cephalic end; white, waxy 

 exudation at the anal end; body slate-gray to brownish-gray; 

 covered both dorsally and ventrally with a white secretion of waxy 

 powder; on the dorsum laterad of the median line are two rows of; 

 abdominal and thoracic depressions which are lacking in secretion : 

 lateral margins covered with abundant white, woolly, waxy secre- 



August, 1917 



