— 168 — 
The silken galleries spun by E. taurica are at first sight very 
similar to a fungus-mycelium ; they are cylindrical, sinuous with 
lateral openings, and sometimes, in shady places under shrubs, 
run from one stone to another, uniting several nests altogether 
(pp. 145 — 147). 
My Embiae seem to live on vegetable food alone, feeding 
chiefly on roots and rhizomata of Gramineae, on dead oak-leaves, 
etc. (p. 147). Several insects (ants, Ourculionidae, Chrysomelidae, 
Japyx) and myriopods (Juins, Polyxenus) living under stones in 
Company with E. taurica, apparently do not serve as a food for 
the latter, although their carcasses and separate sclerites are 
commonly to be found in the neighbourhood of i£mfoa-spinnings 
(pp. 147 and 148). These conclusions were confirmed by obser- 
vations on living insects in captivity (pp. 148 — 150). 
The spinning glands in the first joint of the foretarsi of 
Embiae are structures unique in ail the animal kingdom; their 
microscopical examination shows, that we have in E. taurica 
nearly the same structure as described recently by Melander in 
E. texana (40), but my histological results (pp. 153 — 155) are 
obtained quite independently from the investigations of this 
author. According to my observations I am inclined to propose 
folio wing preliminary biological cyclus of E. taurica. Eggs are 
deposited in the middle of June, larvae hibernate, becoming adults 
during the next summer, adults hibernate again, and perish in 
the dry season of the second summer. This cyclus is therefore 
composed of two years (pp. 155 and 156). 
The form of the eggs obtained from the ovaries and deposited 
by females in captivity resembles very much that described by 
Melander, but the oblique chitinous circle is much more develo- 
ped (p. 157). The récognition of the sexes in the larvae is very 
difficult, larval instars all having feminine habitus, and last seg- 
ment of the body being quite symmetrical in the larval maies. 
The larvae commence the spinning very early; my figure (45, 
p. 222) représente a photograph of the tarsal glands of a newly- 
