ANTHOPHILOUS INSECT FAUNA OF CLOVA MOUNTAINS 29 



NOTES ON THE ANTHOPHILOUS INSECT 

 FAUNA OF THE CLOVA MOUNTAINS. 



BY J. C. WILLIS, M.A., and I. H. BURKILL, M.A. 



NOTE I. ON THE ABSOLUTE NUMBER OF INSECTS VISITING. 



DATES OF OBSERVATION. 



1894. July 5-9 (J.C.W. and I. H.B.). Weather unsettled. 



1895. April 1-17 (J.C.W.). Snow at first covering all down to 1000 feet, 



gradually retreating up the hills ; nights frosty. 

 June 14-July 8 (I. H.B. ). Fine to unsettled. 

 July 5-23 (J.C.W.). Wet weather. 

 September 13-24 (I. H.B. ). Fine weather. 



1896. May 21-23 (T-C.W. ). Unsettled ; season early. 



June i6-July 11 (I. H.B.) ; July 4-11 (J.C.W.). Fine to unsettled. 



1897. May 18-27 (I. H.B. ). Very fine; season late. 



1898. May 7-16 (I.H.B.). Cold with frequent snow showers ; season late. 



1899. June 10-19 (I.H.B. ). Fine and warm. 

 July 24-26 (J.C.W.). Dull. 



On all but the first two of the visits to Clova l which we made 

 in order to study flower fertilisation, we kept record of the exact 

 number of individual insects seen to visit ; and from our records we 

 here give statistics regarding their seasonal and altitudinal distribu- 

 tion. It must be clearly understood at the outset that insects 

 which are not attracted to flowers for some purpose or other did 

 not come under observation in any way. 



The total number of individual visitors recorded by us is i 7,306 ; 

 they were distributed among the classes of insects in the way given 

 in the following table, wherein also their usefulness to the flowers is 

 denoted by the conspicuousness of the type used : 



HYMENOPTERA. 



APIS 430 



BOMBUS and PSITHYRUS ... 937 



ANDRENA (66), HALICTUS (i), and NOMADA (i) . . 68 



ODYNERUS (5) and CHRYSIS (i) ..... 6 



Vespa ....... 45 



Formicida and Myrmicida (Ants) .... 202 



TenthredinidtE (Saw/lies) . . . . . . 201 



Entomophaga with Cynipida (Petiolata parasitica) . . 461 



LEPIDOPTERA. 



RHOPALOCERA 192 



NOCTUID^E and GEOMETRID/E . .204 



BOMBYCES and MiCROLEPiDOPTERA generally . . 64 



Eriocephala . . . . . . . . IOI 



1 Cf. "Trans. Edinb. Bot. Soc." xxii. 1901, p. 109. 



