15. 
18. 
“ANTONIO ALZATE.” 3391 

Lateral fringe longer, four long slender tails. Dactylopius 
longispinus. 
(Species of Orthezia, sometimes found on orange, are shor- 
ter than Dactyloptus, with much larger legs. The white 
lateral secretion is dense, and there is a long ovisac, 
which is often fluted. In the latter case they are distin- 
guished from /cerya by the smaller size, absence of red 
color on the body, and the strong upward curve of the 
ovisac.) 
Female scale covered with wax 
arena soonono.ern.sorss$$pS$SSs$rrrsrs.s. 
Female scale naked; no posterior OVISAC.....ooocorocmonmono.. Se 
Female scale naked; a posterior white ovisac at maturity. 
(In Japan) Pulvinaria aurantit. 
Scale very convex, marked by plates like a tortoise. Cero- 
plastes cirripediformas. 
Scale not so convex, without well-marked plates. Ceroplas- 
tes floridensis. 
(Many other species of Ceroplastes occur in Mexico.) 
Scale when alive soft, oval, pale brownish or greenish. Coc= 
cus hesperidum [= Lecanúum hesperidum. ] 
Seal hard coa ve A osidal 
Scale very dark, black or nearly so, with a raised H marked 
on the back...... Suissetia oleae [= Lecanium oleae. ] 
Scale smaller, very convex, reddish, without a raised H in 
the adult. Sarssetia hemisphaerica [= Lecantum hemis- 
phaericum.] 
16 
17 
18 
