52 



SUMMARY OF CURRENT RESEARCHES RELATING TO 



Ceriparous Cells in Lecanium persicae. — G. Teodoro {Bull: Soc, 

 Entomol. Ital., 1919, 50, 23-7). There are free ceriparous cells or 

 cerodecytes in the hsemolymph, and there are others which occur in 

 groups contiguous to a tracheal trunk (the so-called hypo-stigmatic 

 glandular cells). The two sets differ not only in localization but also in 

 their minute structural details. J. A. T. 



Coccidae of South-western United States. — Gordon Floyd 

 Ferris {Leland Stanford Junior University Fuhlications, 1919, 1-68, 

 38 figs.). An account is given of a large number of Coccidae collected 

 in the arid regions of the south-western portion of the United States. 

 Numerous new forms are recorded and defined, and numerous previously 

 named forms are re-described. J. A. T. 



Mealy Bugs of California. — Gordon Floyd Ferris (Leland 

 Stanford Junior University' Publications, 1918, 1-77, 3 pis.). In 

 addition to systematic descriptions there is a discussion of the taxonomic 



Section through a wax-gland of Eriococcus adenostomx Ehrb. 



value of the characters of the antennae, legs, dorsal ostioles (from which 

 globules of secretion exude), cercarii (marginal groups of pores and 

 differentiated spines from which arise the characteristic tassels or 

 filaments of wax), the pores and ducts of the wax-secreting glands, and 

 the setae of the body. J. A. T. 



Mound-building Termites of Philippines. — Leopoldo B. 

 UiOHANCO {Philippine Journ. Sci.^ 1919, 15, 59-65, 4 pis.). The 

 mounds make by species of Termes in the Philippines rarely exceed 

 2 metres in height. Beneath the thick outer crust of clay there are 

 numerous coral-like "fungus gai'dens" of woody and plaster-hke 

 material. The "mushrooms" may crop out on the surface and are 

 eaten by man. Counts of swarms gave an average of five females to a 

 hundred males. The swarms are thinned by bats, birds, lizards and 

 other enemies. After shedding their wings the couples run about, and 

 a pair seem able to make a new colony. In about three months there 



