﻿President's Address. 



55 



to provide a list ; this, however, will take time. As yet 

 only 5 species have been made out, namely Anthothrips 

 statices (Hal.), Euthrips idicis (Hal.), E. vulgatissima (Hal.), 

 E. primulce (Hal.), and Oxyothrips parviceps, Uzel.^ 



Hemiptera. — Stewart gave the names of 24 Hemiptera 

 in his list of Edinburgh insects (I.e.), and Greville collected 

 them, but does not seem to have recorded his captures. 

 They have recently engaged a share of my own attention, 

 and I have now a list of 220 species.^ The sub-order in 

 which, thanks to the assistance of Mr E. Saunders, E.R.S., 

 most progress has been made is the Heteroptera (bugs), of 

 which 155 species have been identified. Eifty-eight Homop- 

 tera (hoppers, etc.) have been determined, but these are by 

 no means all that have been collected, and very few Aphids 

 and Coccids are included. The Anoplura (lice) account for 

 the remaining 7 species. 



The following Table, summarising the above, shows at a 

 glance how matters stand as regards the class Insecta.^ 



Order. 



Number of 

 Species 

 recorded or in 

 my Lists. 



Estimated 

 Number in 

 Area. 



Aptera, . . . . 



Orthoptera, ...... 



Neuroptera (including Mallophaga), . 

 Hymenoptera (including Greville's Chalcids), 

 Coleoptera, ...... 



Lepidoptera, ...... 



Diptera, ....... 



Thysanoptera, ....... 



Hemiptera ( + Anoplura), .... 



Total, 



70 

 12 

 226 

 527 

 1328 

 758 

 702 

 5 



220 



About 75 

 12 

 350 

 ,, 1250 

 1400 

 850 

 ,, 1300 

 25 

 450 



3848 



5700 



^ Specimens of these and one or two other species have since been submitted 

 to Mr Bagnall. 



Some years ago I brought before this Society a preliminary list of 

 Hemiptera-Heteroptera, but a much more complete catalogue was desirable 

 before publication. The more interesting of the records, and also some of 

 Homoptera, have, however, been published in the Ann. S. N. H.; cf. 1900, 

 p. 101, 1901, p. 184, 1905, pp. 57, 216, and 1906, p. 241. Cf. ih., 1907, 

 p. 225, for notice of a new louse {Hcematopiiius ovillus, Neum.) from the sheep. 

 ^ The number of recorded British Insects I make to be about 14,000. 



