EXPLANATION OF PLATES. 
PLATE I. 
. Respiratory trumpets of nymph. 
. Nyssorhynchus fuligtnosus. 
. Myzomyia Rossii. 
. Stegomyia sugens. 
. Stegomyia fasciata. 
. Desvoidea fusca. 
. A culex the larval characters of which differ from the type group. 
Pl. Il, figs. 7 and 19, and PI. Ill, fig. 2. 
. Culex fatigans. 
. Melanoconion (n. sp.). 
. Nymph of Cu/ex showing position of trumpets. 
5 Melanoconion showing position of trumpets. 
2 Tzniorhynchus ,, 93 ” 
5 Culex concolor  ,, » 3 
. Tentorhynchus. 
. Culex concolor. 
. Howardina (n. sp.). 
. An atypical culex. See PI. Il, figs. 9 and 21, also PI. III, fig. 7. 
. The eighth and ninth abdominal segments of larva of Stegomyia sugens. 
. The head of M/e/anoconton showing mental plate, structure of antenna. 
. Larva of Stegomyta sugens. 
3 Melanoconion, n. sp. 
3 Tzntorhynchus tenax (Theo.). 
See 
ae A culex related to species shown in Pl. I, fig. 16. See Pl. I, 
figs. 10 and 22, and PI. III, figs. 8, 23, and 24. 
re Culex concolor (cannibal larva). 
