SPECIES OF CULEX AND ALLIED GENERA. 255 
Neomelanoconion rima, 3, Theo., Mon. Cul. IV, p. 514 (1907). 
Pectinopalpus fuscus, Theo., Ann, Mag. Nat. Hist. (8) V, p. 375 (1910). 
Culiciomyia uniformis, Theo., Mon. Cul. V, p. 230 (1910). 
Dr. W. M. Graham first called the writer’s attention to the probability of 
Pectinopalpus fuscus and Culiciomyia frectownensis being identical, and has 
suggested this in the * Bulletin of Entomological Research ” (July, 1911, p. 132). 
At his suggestion I made preparations of the genitalia of a number of males, 
choosing specimens as different in size and in the amount of white on the abdomen 
as I could find. In none of these preparations could I see any specific differences ; 
the smaller specimens were much less strongly chitinised, but this is only what 
might be expected in starved individuals. 1 also examined some hundreds of 
pinned adults, and though these varied greatly in size and in the extent of the 
whitish, lateral, abdominal spots, every gradation could be found between the 
various forms. In one case about 150 very small specimens were bred from the 
water in a pie-dish by Dr. T. F. G. Mayer, in Southern Nigeria, their size 
evidently being due to semi-starvation in the larval period. I have therefore 
come to the conclusion that there is only one variable African species of 
Culiciomyia (C. dalziel, 'Theo., is « synonym of Ochlerotatus quastunivittatus, 
Theo.), the forms or varieties of which are :— 
a. nebulosa, Medium-sized specimens with obscure abdominal spots. 
[3. cinerea, Large specimens with distinct pale apical lateral spots on the 
abdominal segments. 
y. pseudocinerea ( = uniformis, ? = invenusta), Large specimens with no 
pale abdominal spots. 
iN] i . 1 . . ° 
6. freetownensis, Small specimens with abdominal spots. 
«. fusca. Small specimens without abdominal spots. 
As it would frequently be impossible to say whether a specimen were large or 
sinall, or even whether abdominal spots were present or not, since these are so 
variable in size, it does not seem advisable to retain these names in general use, 
There is some variation in the length of the fork-cells: two specimens from 
Prince’s Island, Gulf of Guinea (Dr. W. G. Ansorge) have the first slightly 
shorter than the second. ‘This is one of the many species which not infrequently 
have a bright green colour on the thorax or legs ; this variation may possibly be 
due to something in the food of the larve. 
In the Monograph of the Culicide (V, p. 239), referring to C. /rectownensis, 
Theobald says “ Perfect specimens show the venter of the abdomen to be 
white, except the apical segment, which is deep black.” This remark only 
applies to some specimens wrongly determined as C. freetownensis, which 
are really HEumelanomyia inconspicuosa; the venter of C. nebulosa is all 
grey. EF. inconspicuosa Q is very much like C. nebulosa to the naked eye, but 
has a black, shiny thorax, and a flat-scaled head. The thoracie integument of 
C. nebulosa and also the scales of the thorax, have a characteristic dull grey- 
brown appearance. The distinctions between C. nebulosa Q and Protomelanoconion 
fuscum Q have already been pointed out. 
The type of C. nigrochaetae is not now in the British Museum, but it seems, 
from the description of the Q, to have been only C. nebulosa. The number of 
