94 
MALARIA 
dark spot between it and the third large 
costal spot (Panama to Mexico) . 
PUNCTIMACULA 
Smaller black species; wings with black and 
white scales only; fifth vein black on stem 
and lower fork; black spot at apex of wing 
prominent, larger than black spot between it 
and the third large costal spot (Panama 
northward) . Apicimacula 
24. A small species, wings mostly white-scaled; 
edge of costa black; with a conspicuous dark 
spot at middle; dark wing-scales large, some 
nearly circular (West Indian islands) . 
GRABHAMII 
A large brown species, wings mostly dark- 
scaled, scales narrow; a few small yellow 
spots on costa and apex of wing; hind tarsi 
usually with narrow yellow rings on both 
ends of segments (sometimes absent) 
(Greater Antilles, Dominica, southern Mex¬ 
ico, British Honduras southward along At¬ 
lantic coast to northern Panama) . 
VESTITIPENNIS 
Key to the Larvae op the Anophelini Found in 
the Neotropical Region North op 
South America 
1. Without apparent and functional palmate 
hairs; a long annulated process ending in a 
split bristle arises from each lateral flap of 
respiratory apparatus (Panama, Costa Rica) 
(subgenus Stethomyia ) .kompi 
With three or more pairs of well-developed 
abdominal palmate hairs; lateral flaps of 
respiratory apparatus not as above .2 
2. Integument very hairy; palmate hairs with 
racket-shaped elements present on third, 
fourth and fifth abdominal segments; a 
single long filament arises from anterior 
plate of respiratory apparatus (stream- 
breeder, Panama, Costa Rica, British Hon¬ 
duras) (Genus chagasia) .bathanus 
Integument not hairy; with more than three 
pairs of well-developed abdominal palmate 
hairs; respiratory apparatus not as above.3 
3. Lateral abdominal hairs on segments 4, 5 and 
6 with coarse lateral branches.4 
Lateral abdominal hairs on segments 4, 5, and 
on 6, if present, without coarse lateral 
branches .. 5 
4. Outer and inner anterior, and posterior clypeal 
hairs long, simple, subequal; mesothoraeie 
and metathoracic pleural hairs much thick¬ 
ened, spine-like; tips of posterior plates of 
respiratory apparatus produced into two long 
black upeurving tails. pseudopunctipennis 
Anterior internal clypeal hairs notably longer 
and stronger than external hairs; meso- and 
metathoracic pleural hairs slender, normal, 
not thickened; tips of posterior plates of 
respiratory apparatus rounded (Guatemala, 
at high altitudes) . hectoris 
5. Outer anterior clypeal hairs usually forming 
a fan-shaped tuft; inner clypeal hairs sim¬ 
ple, set close together; well-developed pal¬ 
mate hairs on third to seventh segments 
only ./..6 
Outer anterior clypeal hairs never forming a 
fan-shaped tuft; inner clypeal hairs simple, 
set close together or far apart; palmate 
hairs .present or absent on abdominal seg¬ 
ments 1 and 2; present on segments 3 to 7.9 
6. Anterior dorsal hair of prothoracic pleural 
hair-group with a few lateral branches; 
lateral hairs of abdominal segments 4 and 5 
normally double, sometimes triple; ventral 
sabre of antenna with truncate, frayed tip. 
.VESTITIPENNIS 
All long hairs of prothoracic pleural hair- 
group simple, unbranehed; lateral hairs of 
abdominal segments 4 and 5 single or 
double...7 
7. Ventral sabre of antenna squarely truncate, 
the tip frayed; outer anterior clypeal hairs 
normally forming a long tuft with many 
ultimate branches; lateral hairs of abdomi¬ 
nal segments 4 and 5 single (Central and 
South American mainland, Trinidad) . 
PUNCTIMACULA 
Ventral sabre of antenna pointed; outer an¬ 
terior clypeal hairs forming a dense flat¬ 
tened tuft, shorter than inner clypeal hairs; 
lateral abdominal hairs of 4th and 5th seg¬ 
ments branched. 8 
,8. Branching of outer anterior clypeal hairs di¬ 
chotomous, without additional fine branches; 
lateral hairs of abdominal segments 4 and 5 
usually double from base (Caribbean 
Islands) . GRABHAMII 
Branching of outer anterior clypeal hairs 
falsely dichotomous, with many fine simple 
elements in addition to dichotomous 
branches; lateral hairs of abdominal seg¬ 
ments 4 and 5 variable, usually triply 
branched (sometimes more) from basal third 
(Caribbean coast from Yucatan to Spanish 
Honduras; Greater Antilles) . crucians 
9. Frontal hairs of head simple, at most finely 
frayed; lateral abdominal hairs of segments 
4, 5, and 6 finely feathered; teeth of pecten 
all long, subequal; palmate hairs absent on 
first abdominal segment; leaflets straplike, 
with truncate tips (subgenus Kerteszia, 
bromeliad-inhabiting, Central America) . 
NEIVAI 
Frontal hairs of head plumose; lateral hairs of 
abdominal segments 4 and 5, and on 6, if 
present, simple, not feathered; pecten teeth 
