42 OHIO STATE ACADEMY OF SCIENCH#H. 
Larvae: The male and female larvae are similar to adult female 
in shape and color, but the male larva has 7-jointed and the female 
6-jointed antennae. 
Remarks: This is a pest in almost every conservatory, and 
is difficult to control since the waxy secretion protects it from a 
spray of water, and only by a spray of considerable force can it 
be dislodged. 
Pseudococceus pseudonipae (CkIl.) 
Dactylopius nipae Davis, Spec. Bull. 2, Mich. Exp. Sta., p. 28 (1896). 
Dactylopius pseudonipae Ckll., Science Gossip, N. S., iii, pp. 189, 
302 (1897). 
Dactylopius pseudonipae King, Can. Ent., xxxi, p. 112 (1899). 
The author found this pecuhar Pseudococcus on palms in a 
greenhouse at Painesville, where it was quite a pest. 
PSEUDOCOCCUS TRIFOLII (Forbes). 
Migs. 52, Ho, o4: 
Coccus trifolii Forbes, 14th Rep. Ins. 11l., p. 72 (1885). 
Daclylopius trifolii Osborn, Contr. Ia. Ag. Coll. p. 2 (1898). 
Dactylopius trifolii Davis, Bull. 116, Mich. Exp. Sta., p. 58 (1894). 
Adult female: 2—2.3 mm. in length, reddish-brown, covered with 
granular, waxy secretion. A fringe of seventeen waxy processes 
extends around the body, longer at caudal end, sometimes one-third 
the tength of the body. The legs are dirty yellow in color, femur 
and tibia subeygual, tarsus of hind leg more than one-half the length 
of the tibia. Four digitules, the two superior ones long and slender, 
two inferior stouter and knobbed at tip. Antennae 8-jointed; joint one 
swollen, stout, as broad as long. Formula: 8 (321)5(467). The 
fourth joint varies considerably, sometimes smaller, sometimes larger 
than 5, 6, or 7. Anal lobe bears one long and three short setae, and a 
mass of small gland-spots with two conical projections. Ano-genital 
ring large, dotted, with six long setae, about same length as anal lobe 
setae. Penultimate segment conspicuously dotted with gland orifices. 
Remarks: On roots of clover at Columbus, O., not plentiful. 
Subfamily COCCINAE. 
This group which belongs here in order of arrangement, has 
been omitted in this paper, with the expectation of a later ae- 
count. Lack of material and literature have been the main 
factors in the omission of this group. 
