Genera and Species of Coccide. 131 
One of the reasons which led me to attach the Hutt Valley 
insects to D. adonidum was the exact correspondence of the 
adult female antenna with that of the European species ; and 
for comparison I had the advantage of possessing not only 
the descriptions and figures of Signoret, Comstock, and 
Douglas, but also a mounted specimen of D. adonidum from 
Paris, which had been sent to me (unmounted, zn stu) by 
Dr. Signoret himself. I am obliged here to draw atten- 
tion to a rather curious error in Professor Comstock’s descrip- 
tion (Rep. of Entom. U.S. Dep. Agric. 1880). He there 
says :—“ The antenne are composed of eight joints, of which 
the eighth is the longest, and the third and the second, fourth 
and fifth the shortest and of equal length.” This is meant 
to be translated from Signoret; but Signoret’s words are 
“ huit articles, dont le huitiéme le plus long, puis le troisitme 
et le second, quatriéme et cinquiéme d’égale longueur et les 
plus courts,” which very clearly means that the third and 
second come next to the eighth and the fourth and fifth are 
the shortest and equal; and this is borne out by the actual 
specimens, as I show in the table below. The error is quite 
excusable, the original French being rather obscure; but it 
might lead to much confusion. 
The following table will show the formule of the antennal 
joints in the species already described. For convenience I 
have grouped these species in the first place according to their 
external appearance, with or without cottony tassels, sacs, &c. 
The figures give the sequence of the joints, beginning with 
the longest, and those which are bracketed are intended to 
mean equal or subequal, the first in a bracket being perhaps 
longer than the others. 
Genus DacTyLoPius. 
Section 1— Exhibiting dorsal meal and lateral cottony tassels. 
antennal 
Species. Author. Locality. formula. 
adonidum (Linn.) .... Signoret. Europe. 8321 (67) (54). 
C7 a Ar AD Ree Maskell. Australia. 83215 (746). 
TEI aie ns Goh Signoret. | Europe. 852 (4567) *. 
Dr EPA D tes x aie ois (aioe vince Cockerell. West Indies. — (88)(12)(54)(67). 
bromelia (Bouché) .... Signoret. Africa; India. (258) 1 (4567). 
COTET DUNE a aiaie a toy visi aieks Signoret. Europe. 8237456 *. 
citrt (Boisduval) ...... Signoret. | Europe. (88) 2 (57) (46) *. 
Crepe ead ake iss « <F Coquillett. N. America. (238) 5 (47) (61). 
CHUTES areata pr ta ac uss Signoret. Europe. 8 (32) (567) 4*. 
QESUPUCLON tee) ts Comstock. N. America. 85 (27) (56) 4*. 
CPROGHCO ha 2) ile gegen. Coquillett. N. America. 8 (23) 561 (47). 
PROUB AUTEN Healtuals ee Signoret. Europe. 83 (24567) *. 
g® 
