MOSQUITOES OF THE SUBGENUS FINLAYA — KNIGHT AND MARKS 527 



KEY TO THE SUBGROUPS OF GROUP D (AUREOSTRIATUS-GROUP) 



1 . Postspiracular area scaled 2 



Postspiracular area not scaled 5 



2. Hind tarsi without ai)ical pale markings. 



Subgroup I, chrysolineatus (p. 527) 

 Hind tarsi with apical pale markings on some segments 3 



3. Hind tarsi with narrow pale rings at base and apex of I and at base of II, in 



some specimens a few pale scales over joints of some of succeeding segments 

 also; (male palpi with numerous long hairs apicallj' on III and along 



IV) SuBGHOUP III, sintoni (p. 528) 



Hind tarsi with basal and apical bands on I-IV, V either with basal band or 

 else all white 4 



4. Hind tarsal V all white; male palpi with numerous long hairs apically on III 



and along IV Subgroup VII, scutellalbum (p. 530) 



Hind tarsal V basally banded; male palpi with a few apical hairs on III-V, 

 none or verj' few hairs along these segments. -Subgroup VI, togoi (p. 529) 



5. Paratergite scaled 6 



Paratergite not scaled 7 



6. Hind tarsal segment V entirely white.SuBGROUP IV, quasirubithorax (p. 529) 

 Hind tarsal segment V not entirely white (basally banded or with pale reflec- 

 tions dorsally) Subgroup VIII, gracilelineatus (p. 530) 



7. Subspiracular area scaled; male palpi straight, III-V with a few apical hairs, 



none or very few hairs along IV-V_ -Subgroup II, aureostriatus (p. 528) 



Subspiracular area not scaled; male i:)alpi with numerous long hairs apically 



on III and along IV Subgroup V, candidoscutellum (p. 529) 



Subgroup I, CHRYSOLINEATUS 



Dejimition. — Oriental, with representatives in the Palaearctic re- 

 gion. Male palpi straight; III-V with a few apical hairs, none or 

 verv" few hairs along IV-V. occasionally may be u]) to about seven 

 lateral hairs on either side of IV and about four hairs along V (males 

 of 'pallirostris and rizali are unknown). Basistyle without a tuft of 

 specialized scales. Hind tarsi with basal bands on the first 3-4 seg- 

 ments, occasionally a few basal pale scales on V in horeicU'S^ no apical 

 pale scaling present. Postspiracular area scaled. Paratergite and 

 subspiracular area scaled or unsealed. 



Suppletnenta?^}/ characters. — This subgroup is a superspecies in na- 

 ture, and is further characterized by the combination of the following 

 characters: Male palpi shorter than proboscis (about three-fourths to 

 four-fifths as long). Claspette filament curved, bladelike. Female 

 tori scaled mesally. Halter knob dark scaled on one side, pale scaled 

 on the other. Scutum with distinct narrow longitudinal whitish- 

 yellow or yellow lines as follows : A distinct median line, a submedian 

 line that tends to be broken at scutal angle (the anterior end of pos- 

 terior portion of this line frequently curved outward along the scutal 

 angle), and a line over the wing base (this may be just a diffused area 

 in some species). Also, a small patch of long narrow curved scales 

 occurs just before the wing base. Preala scaled below knob. Larval 



