BY W. R. COLLEDGE. 



23 



tracheal tube passes into each, giving off smaller branches, 

 which further subdivide and ramify throughout the whole of the 



egg mass. 



The number of eggs varies, ranging from one to two 

 hundred. The largest number I have found has been two 

 hundred and ten. They measure the one hundred and fiftieth 

 of an inch in length, by half that in breadth. They are oval, 

 yellow, and transparent, looking very like minute gelatine 

 capsules. In the photo given they are laid attached side by side 

 in a long ribbon ; but I do not regard this as the normal shape of 

 the egg mass. In captivity insects often do things which thay 

 would not in a state of nature, and a judgment formed under 

 these circumstances may prove to be inaccurate, and I have 

 others wherein the shape is much more like the egg-boat of the 

 common mosquito. 



The male and female forms are easily recognized by the 

 antennae. In the former these are of a beautiful plumose shape, 

 the hairs from the basal joints extending nearly to the tips of 

 the organs, but in the female they form a circlet around the base 

 of each joint. Her body also is much stouter, and not so long 

 as the male. He measures nine while she is about seven-hun- 

 dredths of an inch in length, excluding the antennae. 

 Measurements of Male Sandfly Female 



