86 THE ENTOMOLOGIST. 



A number of papers on Lepidoptera also invite attention. 

 Von Linden has recently issued three papers, principally on 

 experiments with the pupae of Vanessids (91-93), while Peterson 

 (89-90) deals with the morphology of copulatory organs in the 

 same order and their value for species-determination. 



Kotinsky (94) discusses pests of Lantana, describing and 

 figuring an Ageomyzid Dipteron, a Lepidopteron, a Coccid, and 

 a Tingid. The same author (95) deals with the Hornfly 

 (Hcematobia serrata) and its parasites. 



Smith (96) has published an indispensable and long-wanted 

 list of terms used in entomology, with their explanations. The 

 plates are good and clear, except the one dealing with the nomen- 

 clature of colours, which is certainly unlike anything used by ento- 

 mologists, and which omits many — indeed most — of those actually 

 largely in use. A modern plate of this sort is still much wanted. 



Folsom's Text-book (97) is somewhat like that of Carpenter, 

 published in 1899, as regards its scope, but is still different from 

 anything in the field. About one-third of the work is taken up 

 with a review of anatomy and development, the remainder 

 being biological and speculative. 



Bueno (98) has worked out in considerable detail the life- 

 histories of two American Waterbugs, viz.. Belostoma fluminea, 

 Say, and Ranatra quadridentata, Stal. 



Felt (99) has published a brief report on Porthetria dispar 

 and Euproctis chrysorrlicea, on account of the great danger 

 of these moths being introduced into New York State. 



The Twenty-first New York Keport (100) is of the usual scope 

 of these valuable bulletins. Among the contents may be men- 

 tioned, "Studies in Cecidoruyiidse " (pp. 116-32, figs. 15-48), 

 and notes on "Mosquito Control" (pp. 109-16, plates 3-10). 



Schneider's general resume of the phenomena of Symbiosis (101) 

 has been overlooked in zoological records. He classifies them as 

 follows : — 



I. — Incipient (Indifferent). 



1. Accidental. 2. Contingent. 

 II. — Antagonistic. 



1. Mutual antagonistic (mutual parasitism). 



2. Antagonistic (parasitism). 



a. Obligative. 



b. Facultative. 



3. Saprophitism. 



a. Facultative. 



b. Obligative. 

 III. — Mutualistic Symbiosis. 



