198 Timehri. 
Proboscis unbanded. Thorax with irregular line of pale grey 
scales laterally. Wings uniformly dark bordered. 
2. fascipes. Coquillet. 
(B. G. Med. Ann., 2908, pp. 13, 24.) 
Genus Mextanoconion. Theobald. 
Three species have been described from the colony. 
Abdomen with lateral pale spots. 
Pleurae black 1. atratus. Theobald. 
(B. G. Med. Ann., 1905, pp. 19, 29, 31, 34, 37. 1906, p. 76. 1908, pp. 20, 23.) 
Pleurae yellow 2. luteopleurus. Theobald. 
(B. G.Med Ann., 2905, pp. 24,25. 1906, p. 76. 1908, p. 23.) 
Abdomen unadorned 3. indecoribilis, Theobald. 
(B. G. Med. Ann., 7908, p. 23). 
To these will have to be added a new species I have recently separated in which there is an 
appearance of basal banding on abdomen and distinct tarsal markings. 
Sub-Family Aedine. 
Three or, if Gualteria be included, four genera are represented here. 
Table oj Genera. 
A, Legs densely scaled at apices of femora. Antennae 14 jointed, basal joint 
with scales. Thorax with broad flat spindle-shaped scales. Scutellum 
with broad flat scales. Wings with broad Mansonia-like and long 
lateral scales ; 1st forked cell with base nearer apex of wing than base of 
forked cell. 
Head with upright fan shaped scales and small rather outstanding obovate 
scales. 
1. Arpgomy1A. Theobald. 
B. Legs normal, no irregular scales. 
a. Head with flat iridescent scales only ; palpi five jointed. 
Wing with rather short fork cells. 
2. Haemacocus. Williston. 
Abdomen with cluster of blunt outstanding spines on the under side 
of penultimate segment. 
Wing : base Ist forked cell nearer apex of wing than baseof 2nd forked 
cell. Palpi of male about half length of proboscis. 
3. Cacomy1a, Coquillet. 
a.a. Head with flat scales at sides, upright scales in middle and spindle- 
shaped scales. 
Wing: base of Ist forked cell nearer base of wing than base of 
2nd forked cell. 
4. Guavrerta. Lutz. 
Genus Ampromyia. Theobald. 
Of the two species described, one has been found here. 
Aedeomyia Squamipenna, Arribalzaga. 
