MONOPHLEBUS STEBBINGII. 139 
ae ee ee 
the western bank of the Jumna river, on the west. No reports! 
of its presence have yet been made from the Ganges Division 
to the east of the Ganges River. 
Mr. Milward gives the following distribution for the forests 
of the Dehra Dun Division situated on the northern slopes of 
the Siwaliks :— 
“The areas in the Dun Government forests which are subject to the 
severest attacks are those in the dry Western Dun. In each of the three 
years 1899—1901 in which it has been noticed it has been particularly 
aciive on the Siwalik’s side in compartments 9 and to of the Jumna 
Range, but it has also been found in large numbers also between the 
Saharanpur-Chakrata road and Malhan village. It was in enormous 
numbers in Dholkot forest in 1900 and inthe same forest chiefly at the 
Selakni end of it in 1901. It was also in large numbers in parts of 
Chandpur and Ambari forests in the latter year. In the damper Eastern 
Dun forests it has not been seen asa pest in the last three years, but in 
small numbers in the Ganges Range in 1899 and 1901. Ithas never been 
seen in the Tirsal Range.”’ 

The young scales were found in enormous numbers in 
January of the present year (1902) in the Lakarkot forest on 
the southern slope of the Siwaliks, the undergrowth being 
thickly coated with their sugary excretion. 
Relations to the Forest. 
The published knowledge of the life histories and methods 
of attack of monophlebids? in Indian forests is very meagre and 
the present one is therefore of some interest and importance. 
As far as observations have yet been carried, the insect’s 
attacks would appear to be most prejudicial to the growth of 
the trees, both young and old. The female scale is the chief 
aggressor, the mature male not feeding at all. The damage 
1 Whilst this note was in the press, the presence of this insect was 
reported in forests east of the Ganges by Mr. Dickinson, Conservator of 
the Circle. 
2 Mr. E. E. Green, Government Entomologist, Ceylon, an authority on 
Coccidz, very kindly named this insect for me. Up to the date of my 
sending him specimens of the 2 and © insects there were but five species 
of the genus Monophlebus recorded from the Indian region, and of these 
four were described from the male insects only, the females being still 
unknown. To this number the writer has been able to add three new 
species during the past year. 
