ALEURODICUS HOLMESII. 61 



ception of the characteristics of this form. Prof. Cockerell's de- 

 scription follows: 



ORIGINAL DESCRIPTION. 



Alciirodicus jamaicensis was collected by the writer at Kingston, Jamaica, 

 in 1803. The pupa is small (hardly 1* mm. long), with vertical walls, margin 

 resembling tb.it of pulvinata ; color bright yellow, with a brownish dorsal cloud, 

 and a diamond-shaped black patch just anterior to the vasiform orifice. Other 

 characters shown in fig. 2. 



DESCRIPTIVE REMARKS. 



Pupa case. — Size 1.3 mm. lon^ by 0.89 mm. wide. Color yellow, 

 with dark brown markiiigs as shown in the figure. There is a sub- 

 marginal area all around marked with many simple wax pores which, 

 in the present specimen, have mostly developed short, stout, spine- 

 like structures, probably due to parasitism (see coccolohw^ p. 50). 

 On the abdomen are five pairs of compound pores, the caudal pair' 

 being much reduced in size. (The usual cephalic pair is also prob- 

 ably present, but can not be verified in the specimen at hand.) 

 Caudal margin of case with a single pair of spines. Margin entire. 

 Vasiform orifice cordate, about as broad as long. Operculum short, 

 about twice as broad as long^ ends rounded ; caudal margin coarsely 

 sinuate and bearing a pair of spines. Lingula large, exserted, sub- 

 spatulate, bearing distally two pairs of spines. 



Type.— 'So. 14771, U. S. National Museum. 



Aleurodicus holmesii (Maskell). 



(PI. XIX, figs. 6-11; PI. XXI, fig. 1.) 



AleyrofJe.t holmesii INIaskell, Trans. N. Z. Inst., vol. 2S, p. 435 (1895). De- 

 scribed as Aleyrodes by Maskell and transferred to Aleurodicus by 

 Cockerell (Bui. 67, Fla. Agr. Exp. Sta., p. 644, 1903). 



ORIGINAL DESCRIPTION. 



Larva dull-yellow, elliptical, flattish ; length about 1/80 in. Margin thickened, 

 almost entire, the crenulations being very minute and confused. Dorsum bear- 

 ing, on the thoracic region, six strong rather short spines; of these, two are 

 median, the four others submarginal. In the earliest state there is no fringe, 

 but in the latest stage there is a fragmentary short fringe of white wax. 



Pupa-case dull-yellow, rather lighter colored than the larva ; form elliptical, 

 flattish. and rather thick; length about 1/25 in. Abtlominal segments moder- 

 ately distinct. Dorsum bearing a submarginal series of strong short spines; 

 two of these on the cephalic region aud four on the po.sterior abdominal region 

 are large and conspicuous, the other eight (four on each side), on the thoracic 

 region, are smaller. P^rom these spines is jjroduced a quantity of white waxy 

 secretion, which is very fragmentary, often entirely absent; it scarcely ever 

 seems to completely cover the dorsum. Margin very distinctly and conspicuously 

 crenulated with large thick segments; these produce a fringe of closely- 



