108 



Mr. Kotinskv read a note from Bro. M. Xewell re]iortino; the 

 appearance of an unknown Onrcnlionid'^ in a fernery in Hilo. 

 The insect has been known for some time in TTonohiln Imt this 

 is the first record from Ililo. 



PAPERS READ. 



Geococcus Radicum Green, in Hawaii.** 



BY DAVID T. Fl^DT.AWAY. 



Abont a year ag'o my attention was called to a small mealy- 

 bng on the roots of a potted mango. On comparing monnted 

 specimens of the insect witli slides in the collection of the Board 

 of Forestry and Agricnltnre it was fonnd that the same mealy- 

 bng had been obtained several years previonsly by IMr. Kotinsky 

 on the roots of koa at an elevation of 1,000 feet. Later, it has 

 been taken commonly on the roots of grasses in and abont TTono- 

 Inln. 



I am indebted for the accnrate determination of the species 

 to Mr. E. M. Ehrhorn, of Honolnln, and to Mr. E. E. Green, of 

 Peradeniya, Ceylon, who has compared my specimens with the 

 type and declares them to be identical. While possessing the 

 ordinary characteristics of the Dactylopinids, this species is ren- 

 dered pecnliar by the presence of prominent chitinous dorsal 

 hooks in the region of the head and anal ring. These hooks are 

 not conspicnons in the iignres accompanying Green's description 

 and the insect here was at first considered a distinct species. 

 Mr. Green, however, writes that it is only an intermediate stage 

 of rndinrm ; that material in his possession shows the strongly 

 chitinized hooks. Mr. Ehrhorn takes exception to its being con- 

 sidered an iiitermodiate stage, as lie has foimd fully matnre 

 females, with eggs, possessing the hooks, and oifers the explana- 

 tion that the hooks have been lost in the type material, which is 

 readily credible, considering their l)rittlenoss. 



The insect is here described and tiiiiircd ( Plate 1-) : 



* This is the insect whose identification is given as Si/df/riiifi fiiTri- 

 l(irf<is Pasc. on page 115 following [Ed.] 



** This paper replaces one in which INIessrs. Fullaway and Kotinsky 

 described the species as new to science. On further study and investi- 

 gation it has been determined as now given. — [Ed.] 



Proc. Haw. Ent. Soc. II, No. 3, ]\Iay, 1910. 



