612 MOSQUITOES OF NORTH AMERICA 



Reedomyia Ludlow, Reedomyia pampangensis Ludlow; 

 Scutomyia Theobald, Scutomyia albolineata Theobald; 

 Skusea Theobald, Acdes pembaensis Theobald; 

 Stegomyia Theobald, Culex fasciatus Fabricius; 

 Stenoscutus Theobald, Stenoscutus africanus Theobald; 

 Twniorhynchus Arribdlzaga, Culex tccniorhynchus Wiedemann; 

 Terrallina Theobald, Aedes butleri Theobald. 



Generic Diagnosis of Adult: 



Proboscis moderate, uniform, variable in length and thickness. Palpi short in 

 the female; in the male usually long, occasionally short. Antennae filiform in the 

 female, the joints subequal, the basal whorls of moderate hairs; plumose in the male, 

 the last two joints long, the others short, thickened at the insertions of the hair 

 whorls. Clypeus usually nude, rarely with scales. Prothoracic lobes well separated. 

 Mesonotum with rows of setae on the disk. Scutellum trilobate. Postnotum nude. 

 Abdomen tapering to the tip in the female, the cerci prominent, the eighth segment 

 partly membranous and retractile; elongate in the male, depressed, usually with 

 abundant lateral ciliation. Harpagones of the male genitalia with a slender base, 

 bearing a terminal filament, rarely absent. Hind legs with a row of spines on the 

 tibial scraper. The claws of the female are most often toothed, in some species 

 simple; those of the male are unequal and toothed at least in part. 



Generic Diagnosis of Larva: 



Head rounded, depressed, the antennae usually small, with a short hair or hair-tuft 

 situated near the middle and short terminal spines. Lateral comb of the eighth 

 segment of many or few scales, sometimes in a single row. Air tube of various 

 lengths, usually short and stout, with basal pecten and a single pair of ventral hairs 

 or hair tufts; in one species with several dorsal hair tufts. Anal segment with 

 dorsal plate or ringed; ventral brush well developed. Anal gills four, subequal, 

 variously developed in the species. 



Distributed throughout the world. The mosquitoes which are said to be so 

 numerous in the Arctic regions belong here, as well as many tropical forms. 



The genus Aedes was originally proposed for a single European species which 

 has short palpi in the male sex. All the related species having long palpi in this 

 sex were placed in the genus Culex. This distinction was retained until the year 

 1906 when the genus was recast on larval characters by Dyar and Knab. To 

 Aedes as originally formulated were subsequently added other species having 

 short palpi in the male, some belonging to the Sabethini, others to the genera 

 Uranotcenia and Aedeomyia, and some to the genus Culex proper. The genus 

 attained to no large size until it was discovered that the short palpi of the male 

 occurred independently in several groups and that they could not properly be 

 used for generic definition. On referring to more fundamental characters it 

 became apparent that the name Aedes applied to a large group of species which 

 are distinguished from Culex in both the adult and larval stages. Aedes is the 

 earliest generic name applied to any species of this group, although the type 

 species is really atypical in having short palpi in the male. Of the 84 American 

 species treated here only one has this structure. In 1891 Lynch Arribalzaga 

 applied four generic names to members of this group and later, between 1901 

 and 1910, many other names were proposed for various sections of the genus, 

 which we think are unimportant and furthermore cannot be defined with 

 sufficient exactness to be recognized. 



The following generic names are here referred to the synonymy in accord- 

 ance with the revisional work on old world Culicidae by F. W. Edwards (Bull. 

 Ent. Eesearch, iii, 6, 7, 14, 1912; iv, 329, 1913): Finlaya, Aedimorphus, 

 Phagomyia, Polyleptioniyia, Skusea, VerralUna, Dutlonia, Mimeteculex, 

 Geitomyia, Aioretomyia,, Kingia, Bathosomyia, Leslieomyia, Macleaya, Gilesia, 

 Molpemyia and Andersonia. We have examined the male genitalia of a Finlaya 

 from Samoa and find that they show all the characteristic parts of typical 

 Aedes. 



