106 KANSAS UNIVEESITY QUARTERLY. 



circular in pergandei, oblong in proteus: by the fourth lobe : present 

 in pergandei, absent in proteus. 



It is upon these characters that specimens in hand are determined 

 as pergandei. Comstock's comparisons were probably made without 

 specimens of proteus at hand, since he mentions in a foot-note Sig- 

 noret's figures and description."^ Later, however, Comstock speaks of 

 receiving specimens of proteus from Signoret,- confirming his con- 

 ception of this species. 



The exact status of pergandei, however, does not seem to be fully 

 settled. Professor Cockerell in his first check-list cites pergandei as 

 a distinct species," and in his first supplement it is located as a variety 

 of proteus.- I have received it from Mr. Craw on orange from the 

 type locality, Florida, labeled in agreement with CockerelFs supple- 

 ment. Mr. C. L. Marlatt, who is now studying the genus, says "per- 

 gandei Comst. (merges into proteus Curt.)"^ Doctors Berlese and 

 Leonardi place Comstock's variety oi pergandei. carnelice, as proteus^ 

 var. camelice,^^ and other instances likewise might be cited. 



With pergandei on orange branches from Florida (Craw), Wio, per- 

 gandei under consideration on orange leaves and branches from a 

 Lawrence greenhouse, prjteus on Pinus insignis from Perth, Aus- 

 tralia (Ckll.), and proteus on leaf of an orchid, Watagode, Ceylon 

 (Green), before me, the following notes are made: Regarding the 

 form of scale of female, I find "circular" scales among proteus and 

 "elongate" scales among pergandei. No steadfast distinction either 

 in shape or color of the female scale can therefore be noticed. Con- 

 cerning the pygidium, the proteus on Pinus and the orchid show, in 

 accordance with Comstock, the presence of plates in the location 

 where the pointed fourth lobe is found in pergandei. Proteus further 

 shows marginal undulations apparently independent of the lobes, the 

 crests situated beneath (ventral aspect) the lobes and extending out 

 about one-third the length of the lobes. These undulations are shown 

 in the figure and are characteristic of the proteus on Pinus. They 

 are not noticeable on the orchid insects. 



Proteus, further, is not recorded, as far as I can ascertain, existing 

 upon orange. I have received specimens in exchange on orange la- 

 beled proteus, but discriminations made upon the above basis showed 

 the insects to be undoubtedly pergandei. The undulations along the 

 posterior margin of proteus may be fairly constant ; their presence in 

 this one lot on Pinus does not warrant a statement of their perma- 



5. Rep. Comm'r Agr. 1850. p. 327. 



6. 2d Rep. Dept. Ent. Cornell Univ. 1SS3, p. 114. 



7. Bull. lU. St. Lab., vol. IV, p. 335, 18S6. 



8. BuU. 111. St. Lab., vol. V, p. 397, 1S99. 



9. Marlatt, MSS. 



10. Chermotheca Italia, Fascicola I, No. 2. 



