MISCELLANEOUS PRKDACKors MI'IKS. 
137 
Perhaps the niito most eoiumonly found with i lie csxi^s of tlic Cicnda 
is Pcdiculoidcs i^cufrimsus' Xew j). 'Idiis species lias a ncin irciici-al Iccd- 
inij; habit and isoftcMi an acl ixc a^ciil in iIhmIcsI i-nd ion of tlie e^<rs or 
youn^ of insect ])(>sis. In briH'dinii; caiiics it is often a nnisance 1)\' 
destroyin^i; the sniallei- insects IxMnu* kepi under ol)ser\at ion. 'I'he 
general form of tlu> male and of the unin; pi-(>H-nate(l female of tliis 
mite is similar to that of the next species listivl. 'Hie gravid female, 
however, ch^velops an enormous globular extension from the tip of lier 
abdomcMi. as illustrated in the accompanying figure (fig. 64). 
Another })re(laee()us mite, not at all unconnnon, in the egg slits of the 
Cicada, both in the District of Columbia and in Michigan, is Tynxjhjphas 
cocciphilas Bks. (fig. 65), very near T. longior Gerv., which sTxvies it 
Fig. 66.— Mite pgg parasite, Iphis ovalis. 
(Author's illustration.) 
Fig. 67. — Chvi/lrtus s])., iiiitc egg 
parasite of Cicada. (Author's 
illustration.) 
very closely resembles. The species named is a widely distributed one 
and fre(|uently occurs also in breeding cages, and often becomes ver}^ 
troublesome from its presence in enorn.ous numbers on various food 
substances in the larder. A smaller species of the same genus was 
found with the Cicada eggs, but the material is not in good enough 
condition to make its identification possible. 
A species belonging to the family Gamasidic was found b}' ^Ir. Allis 
associated with the v^^^^s of the Cicada (fig. 66). It is apparently an 
undescribed species and is certainly distinct from the half dozen 
known from North America. Mr. Banks has suggested for it the name 
Iphis oralis. Tlie family to which it belongs includes li'ue insect 
parasites which either live free or attached to their hosts, and there 
is little doubt but that this mite was attracted by the Cicada eggs. 
