96 
AV. H. ASITMEAD. 
3. — Eostrum not jointed, arising from tlie usual place between the first pair of 
coxse, without a tubercle; body surrounded with a white, cottony 
substance covering all except the dorsal disc; antennje 6-jointed ; 
tihife shorter than tarsus G. 6. (liossypiirm Sig. 
Rostrum jointed, species enclosed in a sac or envelope. 
Species enclosed in a sini))le felted envelope, larva and adult with 6-jointed 
antennae, the third joint the longest; tibia as long as the tarsus. 
G. 7. Eriococciis Targione. 
Species enclosed in an envelope, which is pointed at both ends; larva with 
6-jointed antennae, the third and sixth joints the longest; adult 
with 6 or 7 joints, the third joint usually longer than the three 
following; anal ring with 6 hairs ; tibia much shorter than tarsus. 
G. 8. Aeanlliococciit^ Sig. 
Species naked until fully grown ; the J forms a dense sac of waxy matter 
with which the eggs are laid ; adult and larva with 7-jointed 
antennae G. 9 Rliizococciis Sig. 
Adult with 9-jointed antennae, the terminal joint ending in 2 knobbed 
hairs; larva wMth 6-jointed antennae, the last joint enlarged, 
stout G. 10. Callipappiix Guerin. 
Ma/es. 
Species undergoing their transformations in a small cottony, or felted sac. 
Adult with 10-jointed antennae, larva with 6; wings with a small lobe near 
the insertion; halters with a single bristle; head with 4-6 ocelli. 
G. 1. IVidiilaria Sig. 
Adult with 10-jointed antennae, with some knobbed hairs, and usually with a 
tubercle at base; wings normal; halters with a simple bristle; 
larva with 7-jointed antennae ; stylus very short. 
G. 7. Eriocoecus Targ. 
Adult with 11-joiuted antennae, the joints gradually increasing in length api- 
cally; wings normal; halters with one hook; stylus very long; 
abdomen with lateral lobes G. 10. Calli pappiiM Guer. 
Adult with 10-jointed antennae, moniliform, pube.scent, with some knobbed 
hairs on each joint and several on the last ; the third joint the 
longest, the last the shortest ; occasionally wingless. 
G. 6. (i>o.S!«yparia Sig. 
Tribe II. — Dactylopiini. 
Table of Genera. 
Females. 
.Antennae in adult with 9 joints 3. 
.Antennae in adult with le.ss than 9 joints. 
.An anal ring with 6 or 8 hairs and spinnerets secreting a cottony substance, 
with 2 or 4 filamentary processes at the extremity. 
Without clubbed digitules 2. 
With clubbed digitules; adult with 8-jointed antennae, larva with 6. 
Anal genital ring with 8 hairs: tarsi with 4 digitules; lower lip and 
rostral filaments not very short G. 1. l>»etylopiii!4 Sig. 
.Anal genital ring with 6 hairs: tarsi with digitules, lower lip and 
rostral filaments very short G. 2. Westwooflisi Sig. 
