TABLES OF CAEROLLIA 461 



Genus CARROLLIA Lutz. 



CarrolUa Lutz, Imprensa Medica, 81, 1905. 



Mochlostyrax Dyar & Knab (in part), Journ. N. Y. Ent. Soc, xiv, 223, 1906. 



Melanoconion Coquillett (in part), U. S. Dept. Agr., Bur. Ent., Tech. Ser. 11, 23, 1906. 



CarrolUa Theobald, Mon. Culic, iv, 206, 1907. 



Culex Dyar & Knab (in part), Can. Ent., xxxix, 48, 1907. 



Culex Williston (in part), Man. N. Am. Dipt., 3 ed., 108, 1908. 



CarrolUa Peryassu, Os Culicid. do Brazil, 34, 167, 1908. 



CarrolUa Dyar & Knab, Can. Ent., xli, 101, 1909. 



CarrolUa Theobald, Mon. Culic, v, 113, 1910. 



The type of CarrolUa Lutz is CarrolUa iridescens Lutz. 



Gexeric Diagnosis of Adult: 



Palpi short in the female, long in the male. Antennae filiform; joints subequal 

 in the female, with basal whorls of rather sparse hairs on the joints; all but the 

 last two joints shortened in the male and with a curved raised rim bearing the hair- 

 whorl, the whorls long, dense, appearing plumose. Proboscis moderate, slightly en- 

 larged at the apex. A pair of coarse vertical bristles projecting between eyes. 

 Prothoracic lobes very small, lateral. Mesonotum without longitudinal rows of 

 coarse sette on the disk. Scutellum trilobate. Postnotum nude. Abdomen sub- 

 cylindrical, truncate at the tip in the female, laterally compressed, the cerci short 

 and inconspicuous; in the male slightly expanded at the tip, laterally compressed, 

 without lateral ciliation. Legs moderate; claws equal and simple in the female, 

 unequal and some of them toothed in the male. Wing of the male somewhat narrower 

 than that of the female; basal cross-vein remote from anterior cross-vein. Male 

 genitalia with the essential characters of Culex. 



Generic Diagnosis of Larva: 



Head rounded, flattened; antennse moderate, with the tuft near middle, without a 

 notch at its origin. Air-tube over three times as long as wide, with many hair tufts 

 along posterior margin; pecten present in two rows at base of tube. Lateral comb 

 of eighth abdominal segment of few scales in a single row. Anal segment com- 

 pletely ringed by a chitinous band in last stage; ventral brush well developed, limited 

 to the barred area. Anal gills normal. 



Tropical America, exclusive of the Antilles. 



The genus possesses all the essential characters of Culex. It differs therefrom 

 by reduction of the setae on the disk of the mesonotum and the compressed 

 abdomen. It might be considered only a section of Culex, and its relationship 

 is clearly with the species-group of that genus breeding in Bronieliaceae ; but 

 we have concluded to use it in a generic sense for the two following aberrant 

 species : 



Synopsis of the Species, 

 adults, structuee and coloration. 



1. Hind tarsi without white rings; abdomen with dorsal bands 



iridescens Lutz (p. 462) 

 Hind tarsi with a white ring on the fourth joint; abdomen without bands 



urichii Coquillett (p. 464) 



ADULTS, MALE GENITALIA. 



1. Lateral process of the side piece very long and columnar, without other 

 appendages between it and the apex; clasp filament divaricate and 



hirsute iridescens Lutz (p. 464) 



Lateral process of the side-piece long and slender, with many broad spatu- 

 late appendages between it and the apex; clasp filament swollen at 

 the tip, simple urichii Coquillett (p. 466) 



LARV^. 



Note. The larvae are included in the table of larvae of Culex, and are here 

 repeated. 

 1. Air-tube with nine or ten tufts along the posterior line. . iridescens Lutz (p. 464) 

 Air-tube with about fifteen hair tufts along the posterior line 



urichii Coquillett (p. 466) 



