INSKCUTOR INSCITI.^ MENSTRUUS 107 



Type, male, No. 21(!0:|, U. S. Nat. Mus. ; Panama, bred by 

 Mr. A. Biisck but at present without label. 



It is possible that this is the adult of Culex investigator 

 Dyar and Knab, described from Mexico, the adult being un- 

 known. The larva of investigator falls in the table with 

 inhibitator, with tlie adult of which iolamhdis is allied. 



Subgenus MOCHLOSTYRAX Dyar and Knab 



Mochlostyrax Dyar and Knab, Journ. N. Y. Ent. Soc, xiv, 223, 

 1906. 



T.'VBLE OF Speciks 



1. Second plate of unci with a distinct radial pecten in one angle of 



the plate 2 



Without this character 5 



2. Basal lobes of penultimate segment minute, pointed, hairless, 



reductor 

 These lobes larger with a few or many hairs 3 



3. Basal lobe small, few haired; harpes with 6 teeth 4 



Basal lobe large, many haired; harpes with 8 teeth hesitator 



4. Tip of clasp filament foot-shaped floridanus 



Tip of clasp filament roughly elliptical pilosus 



5. Outer division of lobe of side piece forked, bearing many flat 



filaments but no leaf caudelH 



This part entire, bearing two leaves and two filaments, 



peribleptus, moorei 



60. Culex (Mochlostyrax) reductor Dyar and Knab. 



Culex reductor Howard, Dyar and Knab, Monog., iii, 399, 1915. 



61. Culex (Mochlostyrax) hesitator Dyar and Knab. 



Culex hesitator Howard, Dyar and Knab, Monog., iii, 319, 1915. 

 Placed in the wrong section in the monograph. The female 

 proboscis should be swollen. 



62. Culex (Mochlostyrax) floridanus Dyar and Knab. 



Culex {Mochlostyrax) floridanus Dyar and Knab, Ins. Ins. 

 Mens., V, 180, 1917.' 



G;!. Culex (Mochlostyrax) pilosus Dyar and Knab. 



Culex pilosus Howard, Dyar and Knab, Monog., iii, 393, 1915. 



' Fresh material shows that the Cuban species {agitator = cubensis =: masHgia) 

 must be again separated from the Floridian species (floridanus = deceptor) on 

 adult colorational characters. 



