Fig. 
Prats I. 
1. Eggs of Coccidide. 
2. 
3. 
4, 
15. 
16, 
Larva of Diaspidine. 
Diagram of life-history of female Diaspidine. a, pellicle of larva; b, second 
pellicle; c, adult female somewhat shrivelled after egg-laying; d, eggs; 
e, secreted matter forming the ‘‘scale.” In this diagram the scale is 
shown as overturned. 
Types of various spinnerets. a, simple orifices (Mytilaspis); b, double orifice 
(Planchonia) ; c, multilocular orifice (Ctenochiton) ; d, multilocular orifice 
(Calostoma) ; e, simple protruding spinneret (Aspidiotus) ; f, serrated pro- 
truding spinneret (Mytilaspis drimydis); g, protruding spinneret (Acantho- 
coccus); k, conical spiny spinneret and cottony secretion (Rhizococcus) ; 
m, lanceolate spinneret and glassy secretion (Inglisia); n, group of abdo- 
minal spinnerets, with detached orifices (Mytilaspis); p, double multi- 
locular orifice (Calostoma) ; s, coronetted spinnerets and part of glassy 
secretion (Icerya). 
. Rostra. a, simple rostrum of Diaspidinze ; b, rostrum and trimerous mentum 
of Coccidine, 
. Foot of a female insect. c, coxa; tr, trochanter; , femur; fi, tibia ; 
ta, tarsus; cl, claw. 
. Foot of a male insect. The letters as in Fig. 6. 
. Foot with digitules, upper and lower. 
. Type of female antenna (Ctenochiton). 
. Type of female antenna (Dactylopius). 
. Type of antenna of larva (Icerya). 
. Type of male antenna (Fiorinia). 
. One joint of antenna of Monophlebide (Icerya). 
. Diagram of head of male of Lecanidine (after Signoret), both dorsal and ven- 
tral aspects being shown together. a, antenne ; e, e, true eyes, the lower 
. pair being on the ventral surface in the place of the mouth; oc, oc, ocelli. 
Head of male Icerya, with facetted eyes. 
Wing of male insect. , nervure. 
