( xxii ) 
*' Besides the species sent, only two other native American 
lacs are known, the T. larrece, and T. mexicana of Corn- 
stock. 
Whether either of the new species has any commercial 
value, I cannot say, but I should imagine that T.fulgens might 
be worth collecting if it occurs in quantity. 
T. D. A. COCKERELL, 
** Agricultural Experiment Station, 
" Las Cruces, New Mexico (U.S.A.). 
" May 16, 1895." 
P.S. — Just before closing the letter, I receive from Prof. 
Tourney, the following interesting particulars : — 
* The light coloured lac insect [T.fulgens] brought to me 
by a Mexican last August. I was told that the lac was used 
quite extensively by the Mexicans, as a medicine under the 
name of Gomea." It is kept in the drug shops at Tucson, 
where it meets quite a sale among the Mexican element. It 
is used for stomach troubles. It is also used to some extent 
by them in mending pottery, etc. The Mexicans make a 
marked distinction between this lac and the one on Larrea 
IT. larrece f Comst.]. The latter has no reputed medicinal 
qualities. This lac is on what I think is a Sesbania, how- 
ever, as I wrote you before, I am not certain, as I have no- 
thing but the bare stem for comparison. The other lac [T. 
pustulata] 1 find I collected myself early last spring, near 
Phoenix. It was found on a small perennial composite, which 
was not in flower or fruit, and entirely unknown to me. 
(May 15, 1895.) ' " 
Lord Walsingham, in the discussion which followed, men- 
tioned that in the United States an (Ecophorid Euclemensia 
hassettella, Clem, (the nearest ally of our long-lost English 
CEcophora woodiella) feeds on the ? scales of the oak Coccid 
Kermes galliformis^ Riley; these scales were originally re- 
garded as galls by Mr. Bassett. Blastobasis coccivorellay 
Chamb., has a similar habit, feeding on another Coccid of 
the oak {Kermes sp., ne&r pallida ^ Reaum.). 
Mr. Roland Trimen exhibited some specimens of *' Honey " 
Ants, discovered at Estcourt, in Natal, about a yeatr ago, by 
