90 
A Monograph of Culicidae. 
0. Lateral tufts not red. 
Q „ 
Feet all same colour 6 and $ ; caudal 
tuft brown and gold . 
mariae. Lutz. 
One tarsal white in hind legs; caudal 
tuft steel blue and white .... 
portoricensis. V. Roder. 
All hind tarsals white except a black 
ring at distal end. 
herrickii. Theobald.* 
A white or golden band on ventral 
side of mid foot . 
solstitialis. Lutz. 
Legs unbanded; caudal tuft brown... chrysocephala. Theobald. 
Position of M. grandiosus, Williston, is uncertain. 
Megarhinus ferox. Wiedemann (1828). 
Culex ferox. Wiedemann (1828). 
Auss. Zweif. Insek., 1 (1828), Wiedemann; Mono. Culicid. I., 237 (1901); 
XV., 129 (1907), Theobald; Os Culicideos do Brazil (1908). 
Brazil, Columbia. 
Megarhinus fluminensis. Neiva (in Peryassu) (1908). 
Os Culicideos do Brazil, 128 (1908), Peryassu. 
Brazil. 
Note .—Near ferox. The tarsi have white bands, and the 
thorax has the mesonotum in the 9 of a general green colour, 
hind region blue and yellow. Lower surface of the abdomen 
with a central blue line. 
The larva figured here is taken from Peryassu’s work. 
Megarhinus iiypoptes. Knab (1907). 
Canad. Ent. XXXIX., 50 (1907). 
“ d . Head behind the eyes velvety black, the eyes broadly bordered 
with light metallic blue, beneath and at the sides silvery. Antennae 
densely plumose ; the torali with silvery lustre ; second segment long 
and stout, longer than the three succeeding ones, somewhat com¬ 
pressed laterally, the heavy scaling of the crest condensed to a 
prominent iridescent blue patch on the anterior portion. Palpi 
metallic blue and purple, segments two to four lilac at the tip, second 
and fourth segments nearly equal, the third longer, the fifth twice as 
long as the fourth. Prothoracic lobes deep metallic blue. Mesothorax 
greenish black on the disk, with a few coppery scales intermixed, the 
anterior and posterior margins, an ill-defined median line and patches 
* Vide Appendix. 
