LIMNOPHILID&. 
pointing spines borders the caudal margin of the eye; the second 
and third pairs-of legs have well-developed swimming hairs and, 
in advanced pupz, show the black spines of the adult conspicuously ; 
the lateral fringe is well developed, commencing on the caudal 
margin of segment 5 and turning under the abdomen at the caudal 
margin of segment 8; the gills are well developed ; the last segment 
bears a number of sete and two backward-pointing processes 
(figure 64). 
DESCRIPTION OF THE CasE.—The length and breadth vary ac- 
cording to the material found in its environment. It is always 
bulky and is usually of the cross-stick type common in the genus. 
It may be made of bits of leaves or plant-stems or, sometimes, of 
seeds. When seeds are used it does not show the tendency to cross 
the material. The cavity is cylindrical and is always lined from 
end to end with a sheet of silk. 
The case of the pupa differs from the larval case only in hav- 
ing the mesh of silk across its ends as illustrated in figures 61, 62. 
LIMNOPHILUS SUBMONILIFER. 
Hasitat.—The larve are found in shallow water where there 
is an abundance of vegetation, often in situations that are com- 
LIMNOPHILUS SUBMONILIFER. 
67. Larva. Head and thorax. 69. Case of mature larva. 
68. Larva. Frons. 70, Case of immature larva. 
51 
