226 F. W. EDWARDS — NEW SYNONYMY 



of the thorax less extensive than in the other two. I have seen only a single 

 female of S. imitator, and have not examined the type of S. minutissima, but 

 support is lent to the view here expressed by the fact that neither Leicester nor 

 Theobald suggested differences between their species and S. w-alba. I have 

 examined the type of S. w-alba among others which were kindly lent me by 

 Dr. Kertesz from the Buda-pest Museum. 



12. Stegomyia trilineata (Leic). 



Hulecoetomyia trilineata, Leic, Entom. xxxvii, p. 163 (1904). 



Howardina chrysolineata, Theo., Mon. Cul. iv, p. 218 (1907). 

 I have carefully compared the types and find that they are indistinguishable 

 specifically. The palpi of the male are thin, upwardly-curved and practically 

 devoid of hair-tufts, hence I include the species in Stegomyia. Some species of 

 Ochlerotatus (e.g., O. pseudotaeniatus, Giles, and O. gubernatoris, Giles) have the 

 male palpi only just perceptibly swollen apically, but these species have the apical 

 joints bent downwards and provided with distinct hair-tufts, which justifies their 

 inclusion in Ochlerotatus. The two genera, as has already been suggested, are very 

 close, and a doubt may again be expressed as to whether the wisest course to take 

 with regard to them may not be that adopted by Dyar and Knab of sinking both 

 under Aedes. 



Ochlerotatus, Arrib. 

 Eev. Mus. La Plata, ii, p. 143 (1891). 



13. Ochlerotatus gfubernatoris (Giles). 



Culex gubernatoris, Giles, J. Bombay Nat. His. Soc. xiii, p. 607 (May 1901). 



Culex gubernatorius, Giles, Entom., xxxiv, p. 194 (July 1901). 



Finlaya melanoptera, Giles, J. Trop. Med. vii, p. 367 (1904). 



Lepidotomyia magna, Theo., Gen. Ins., Cul. p. 22 (1905). 



Pscudocarrollia lophoventralis, Theo., Rec. Ind. Mus. iv, p. 12 (1910). 

 Giles' type of C. gubernatoris is in the British Museum, and though damaged, 

 is quite recognisable. His figure of the species (Gnats, Ed. ii, pi. 1% f. 7) is inac- 

 curate, as the white markings on the front of the thorax are of an altogether 

 different shape. Lepidotomyia magna differs from the type of O. gubernatoris in 

 the greater breadth of the white rings on the middle legs, but an examination of 

 a series of specimens shows that this is a mere individual variation, as might be 

 expected. Through the courtesy of Dr. Annandale and Mr. Gravely of the 

 Indian Museum, I have been able to examine the type of P. lophoventralis, and 

 find that without the least doubt it is simply a specimen of O. gubernatoris, in 

 which the scales on the under side of the abdomen are rubbed up the wrong way, 

 so as give a tufted appearance. This is still more the case with the type of 

 F. melanoptera which has the tufts quite as well marked as in Giles' figure. This 

 specimen, however, exactly resembles 0. gubernatoris in all other respects, and so 

 the long scales figured by Giles must either be regarded as an abnormality, or 

 they may be normally present in a horizontal position, where they would be very 

 difficult to see, especially if covered by other scales. 



