HATCHING OF STENOPSOCUS CRUCTATUS 65 



paper was referred to by Dr Howard at a meeting of the 

 Entomological Society of Washington in 1902, pointing out 

 that the author in describing the peculiar habit of the issuing 

 embryo of swallowing mouthful after mouthful of air in order 

 to swell its body and assist in bursting the enveloping 

 membrane, was anticipated by H, G. Hubbard. Peyerimhoff 

 had been unable to find any former record of this peculiar 

 habit with the Psocidae, but Hubbard in 1885, in " his masterly 

 volume" on the insects affecting the orange, described this 

 process for Psoais citricola. I have not been able to 

 obtain Hubbard's book. 



I am indebted to M'r Richard Muir, Pathological 

 Department, Edinburgh University, for the photo-micro- 

 graphs of my preparations of embryos and hatching spine. 



EXPLANATION OF FIGURES. 

 In the Plate. 



1. Part of the head of an embryo bearing the hatching file x 300. 



2. Adult insect (after M'Lachlan). 



3. Embryo of Stenopsocus crnciains within the ^gg. Ventral aspect x 80. 



4. Larva newly emerged from the egg, but still enveloped in the amnion 



skin X 80. 



In the Text. 



5. Larva drawn from life about fifteen minutes after shedding the amnion skin. 



A ne-w British Ant. — My r mica schencki, Emery, is recorded 

 by H. Donisthorpe {Ent. Record, December 191 5, pp. 265-266) as 

 taken at Sully, in Glamorganshire. A full description of this 

 interesting addition to the British List is given, with synonymy and 

 geographical distribution. It is unfortunate that the specimens 

 did not reach the author until too late for insertion in his recent 

 book, a notice of which we gave in our Editorial of last month. 



51 



