EXPLA.NATION OF PLATE II. 



■ig. 1. Siphon of the larva of Urcmotmnia halfouri, Theo. ; lateral view, the ventral side on 

 the left. 



2. One of the anal plates of the pnpa of U. halfouri. 



3. Pupa of U. balfouri, lateral view. 



4. The lower portion of the thorax of the larva of U. halfouri, seen on the ventral side 



to show the star hairs. 



5. Antenna of the larva of Megacule.v pincerna, Graham. 



6. Pupa of Megaculex pincerna, lateral view. 



G a. One of the anal plates of the same pupa, enlarged. In life there is a conspicuous 

 white spot on the plates, but all are bleached in the pupjB I have seen. 



7. Siphon of the larva of Megaculex inncerna ; lateral view, the ventral side on the 



right. 



8. Third segment of the abdomen of the same larva, seen on the ventral side. 



9. Anal segment of the same larva, lateral view. 



10. Larva oi Pectinojmlpiis fuscus, Theo. ? (I), seen on the ventral side, and with the 



siphon and anal segment twisted round so as to lie in tlie same plane as the rest 

 of the abdomen. On the head : a, antenna : 6, brush : c, eye ; d, maxilla. On the 

 thorax are found the usual plumes of plumose hairs. On the abdomen the first 

 two segments also carry plumes of plumose hairs. The names of the parts on the 

 eighth segment will be seeu by comparing this figure with PI. I, fig. 4, 



11. Head and thorax of the same larva, showing the dorsal side. On the head: 



d, maxillary plume ; e, labriim, On the thorax, the four frontal hairs and the 

 four double hairs behind them are the " dorsal anterior plumes," 



12. Two of the spines of the siphon of tlie same larva, highl}'^ magnified ; they are very 



close to those on the larvre of our Britisli ^des cmereus, Mg. 



13. Siphon of the larva of Cule.v caligijiosus, Graham; lateral view, the ventral side on 



the right ; showing also one of the siphoual plumes with simple hairs. 

 J4. Antenna of the same larva. 

 15. A side-view of a scale of the comb of the same larva, as seen with low powers, the 



animal being viewed from above. 



10. Anal plates of the pupa of Aulimorphus domesfi'cus, Theo., seen from the ventral 



side. 



