62 THE BUTTERFLIES OF CEYLON 
or on the sand in river-beds, and have rather a quick flight 
if disturbed. They usually, however, settle again quickly. 
The females are much scarcer, and are most likely to be 
found on weeds in abandoned paddy-fields or chenas. 
The small form is apparently confined to the dry zone, and 
is extremely common in the Northern Province. Its habits 
are those of a Zizera, both sexes fluttering about together over 
short grass, and frequently settling on flowers. I have never 
seen the male on wet patches on the roads. It is especially 
plentiful at Elephant Pass (Jaffna) in December and January, 
The only place where I have found both forms is at 
Trincomalie. I found two or three specimens of the large 
form in the Resthouse compound, and a few of the small 
form in Fort Frederick. 
The genitalia of the two forms are very similar and show 
an extraordinary resemblance to those of Chilades laius. 
Lt.-Col. Evans agrees with me that they are distinct, and 
has now named them as given above. Capt. Riley also 
believes that they are distinct species. 
Mr. Bethune Baker has published a monograph on the genus 
Caiachrysops in the transactions of the Entomological Society 
of London for 1922. (Plate 275.) 
He is of opinion that pandava and contracta do not belong 
to Gatachrysops, but does not say in which genus they should 
be placed. Judging from the genitalia I am inclined to 
place them in the genus Chilades. 
107. TARUCUS THEOPHRASTUS. 
Also in North Africa, Socotra, Arabia, India, etc. 
There are two varieties of the under side. In the first, 
all the black markings are very slender, and the post-discal 
band on both wings is a practically continuous slender line. 
In the second the markings are much broader, and some- 
times rusty brown in colour. The post-discal band on the 
fore wing consists of six well separated oblong spots ; and on the 
hind wing of eight spots, of which the middle three or four 
are crescent shaped. I have taken both forms together, and 
they apparently grade into one another, and I regard them 
as only seasonal varieties. 
