62 INSECTS NOXIOUS TO AGRICULTURE. 
Group IJ.—LECANIDIN A. 
Female insects flat, convex, or globular; elongated or cir- 
cular; naked, or covered with waxy, horny, glassy, cottony, or 
felted secretion forming a covering or test. Adults sometimes 
apodous and without antennee. Abdomen in all stages exhibit- 
ing a more or less defined cleft, and, above or beside it, on the 
dorsal surface, two more or less conspicuous, roughly triangular, 
lobes. Mentum usually monomerous or dimerous. 
Male larve resembling females. Male pupz covered with a 
test of secretion, waxy or glassy. Male adults not greatly 
differmg from Diaspidinse; abdominal spike usually short and 
thick. 
SUBDIVISIONS AND GENERA. 
Suspivision I. 
Insects covering themselves with a secre- 
tion, composed chiefiy of waxy, horny, or 
glassy matter LECANODIASPIDE. 
Test of female horny, partly formed of 
the second pellicle LrcaNnocuitTon. 
Test of female waxy, with a single fringe 
of broad segments at the edge CreNOcHITON. 
Test of female glassy, elevated, striated 
with air-cells INGLISIA. 
Not yet represented in New Zealand. 
Test of female waxy, produced into radi- 
ating branches VINSONIA. 
Test of female waxy, without fringe or 
branches CEROPLASTES, 
Test of female waxy, elevated, not striated 
with air-cells FarRMAIRIA. 
Tests agglomerated in a waxy mass con- 
taining colonies of insects, male and fe- 
male CaRTERIA. 
Test of. female absent; tests of males 
ageregated in a waxy mass ERIcERvS. 
