136 PHYSOKEKMES AWETIS. 



scales. But it is mucli subject to the attacks of the 

 small clialcidid parasite, Encyrtus scaurus, Walk., which 

 destroys quite 50 per cent, of these insects. During 

 the month of August, 1891, 1 also succeeded in rearing 

 from this coccid several examples of a small beetle 

 (Brachy tarsus varius) ; and in July of the same year, a 

 beautiful little dipteron with golden wings, which the 

 late Dr.Meade identified as Diplosis latibulorum, Winnz. 

 It is highly probable, however, that the larva or pupa 

 of the latter insect was in some way attached to the 

 small portions of the spruce fir to which the coccids 

 were fixed, and cannot, without further evidence, be 

 considered a parasite. I record the fact in order that 

 it may not be lost sight of. 



EXPLANATION or THE PLATES. 



PL LVIII, fig. 1. Female insects natural size in situ 

 on branch of spruce fir. 



Fig. 1 a. Terminal bud-scales under which the 

 larvae locate themselves. 



Fig. 2. Remarkable variety of the female, natural 

 size, discovered in Bohemia by Dr. Karel Sulc 

 (after Sulc). 



Fig. 3. Adult female with left-hand portion of body 

 cut away, revealing the left-hand internal cavity or 

 pouch with the ova. a a, line of section shown at 

 fig. 3 a; b, abdomen with a few remaining ova 

 ready for extrusion; c, central body- wall or septum; 

 d, posterior portion of same ; e, cavity or pouch 

 containing extruded ova ; /, slit in central wall or 

 septum ; g, approximate position of genital orifice. 

 x 20. 



Fig. 3 a. Transverse section of adult female at a a 

 in fig. 3. b, abdomen with few remaining ova 

 ready for extrusion ; c, central body-wall or 

 septum (dorsal portion) ; d, ventral portion of 

 same ; e, cavity or pouch for the reception of the 

 ova ; /, slit in central wall or septum. 



