Genus Anopheles. . 19 
The scales.—Dr. Nuttall and Mr. Shipley have pointed out * 
that there are-no scales (narrow curved) on the head and scutellum 
in this species. They do not occur in true Anopheles, but in all or 
nearly all the related genera. When the first two volumes were 
issued all the Anopheles except Grabhanii were placed in one 
genus, and as the majority then examined had narrow-curved 
head and scutellar scales, it was given as typical. 
These authors figure the anterior ¢ ungues slightly different 
to what I have seen, for a small second claw is always well 
developed, but not nearly to the extent I figured it in Vol. I. 
(fig. 57). 
The larva.—The frontal hairs (Fig. 4, g) are all four plumose, 
and the antennae have two spines and a median plumose bristle 
and a lateral plumose bristle. . 
There are five pairs of palmate bristles with pointed rays. 
Howard figures seven pairs of these structures ; if this is accurate 
then the American Anopheles is not the same as ours and 
A. maculipennis and A. quadrimaculatus must be distinct, although 
one can detect no difference in the adults. 
ANOPHELES PUNCTIPENNIS. Say. 
(Mono. Culicid. I., 1901, p. 189.) 
Notes.—This species breeds in the same localities as A. maculi- 
pennis. Like the latter species, it is found widely distributed 
‘in North America. The traces of grey palpal bands mentioned 
on page 189, Vol. I., are very exceptional. I have only noticed 
it in one more specimen. They are generally all brown. 
ANOPHELES BIFURCATUS. Jinnaeus. 
Anopheles Walkert. Theobald (?). 
(Mono. Culicid., I., p. 195 (bifureatus), p. 199 (Walkeri)). 
_ (Plates VI. and VII.) 
The following should be added to my previous description of 
this species :— 
The golden hair-like thoracic scales are so disposed as to 
leave two broad median parallel bare lines in front of the 
mesonotum, and in some British specimens the sides of the 
anterior part of the mesonotum are bright chestnut-brown. The 
* Jour. of Hygiene, I., p. 480. 
c 2 
