30 OHIO STATE ACADEMY OF SCIENCE. 



AA. Female globular or renlform, in a hard shell; anal ring 

 with hairs in larva but not in adult; larva fringed 

 with spines KERMBSINI 



AAA. Newly hatched larva with rows of dorsal spines ERIOCOCCINI 

 AAAA. Newly hatched larva without rows of dorsal spines — 



female with soft, powdery, unarmored body DACTYLOPIINI 



Asterolecaniini. 

 Insect with a fringe of glassy rods Asterolecanium Targ. p. 33 



Kermesini. 

 One genus only Kermes Boit. p. 33 



Eriococcini. 

 A. Female anai ring with hairs; antennae and legs well- 

 formed in the adult; adult surrounded by secretion 

 but dorsally naked Gossyparia Sign. p. 38 



AA. Adult forming a cottony sac; anal ring with eight hairs; 



caudal lobes long Eribcoccus Targ. p. 38 



Dactylopiini. 

 A. Antennae 9-jointed; anal ring of female with six hairs 



Phenacoccus Ckll. p. 39 

 AA. Antennae 8- (sometimes 7-) jointed; anal ring with six 



hairs; body oval Pseudococcus Westw. p. 41 



Subfamily COCCINAE. 

 This subfamily, which includes the genera, Pulvinaria,. 

 Coccus, Eulecanium and Saissetia, is omitted from this paper, 

 but the author hopes to be able to publish later an account of the 

 species reported in Ohio. 



Subfamily DIASPINAE. 



A. Scale of female circular to oval with central, sub-central 



or submarginal exuviae. 



B. Scale of male usually resembling scale of female in color 



and texture; only slightly elongated, 



C. Last segment of female with six groups of circumgenital 



gland-orifices Comstockiella, p. 69 



CC. Last segment of female with less than six groups of 

 circumgenital gland-orifices; with much elongated 

 chitinous processes extending anteriorly from bases 

 of lobes Chrysomphalus, p. 69 



CCC. Chitinous thickenings smaller and shorter or wanting 



Aspidiotus, p. 55 

 BB. Scale of male white, delicate and carinated 



Diaspis, Aulacaspis, pp. 51, 53 

 BBB. Scale of male elongated, not white and without carinae 



Parlatoria, p. 75 



