﻿OTHER THAN ANOPHELES. 3 



Megarhinus rutilas as Toxorhynchites rutilus, making his figure from a female 

 which happened to have the palpi broken. Accordingly some have said that 

 M. rutilus must be taken as the type of the genus Toxorhynchites, which in 

 that case becomes a synonym of Megarhinus. But (1) Howard expressly stated 

 that he had borrowed the name from proof-sheets of Theobald's monograph ; 

 (2) he said nothing to indicate that he wished to regard M. rutihts as the type 

 species, while Theobald named T. brevipalpis as the type ; (3) although he 

 included Toxorhynchites in a table of genera he gave no detailed description of 

 it. Theobald's monograph was published in November, 1901. 



Table of Species. 



1. Abdomen shining orange ; third hind tarsal joint white at base*; claspers 



of genitalia with a long terminal spine ... ... 1. lutescens. 



Abdomen metallic blue or violet ; second hind tarsal joint* broadly white 

 at base ... ... ... ... ... ... ... ... 2. 



2. Abdomen mostly blue ; second tarsal joint of middle legs, sometimes also 



of fore legs, white at the base ... ... ... 2. brevipalpis. 



Abdomen violet ; second and third tarsal joints of mid legs entirely 

 white ... ... ... ... ... ... ... 3. phytophagus. 



1. T. lutescens, Theo. (Megarhinus), Mon. Cul. I, p. 233 (1901). 

 Known only from a single male. 



S. Rhodesia. 



2. T. brevipalpis, Theo., Mon. Cul. I, p. 245 (1901). 



Toxorhynchites marshalli, Theo., Mon. Cul. Ill, p. 121 (1903). 

 Toxorhynchites conradti, Grunb., D. ent. Zs. p. 405 (1907). 

 The metatarsi usually have a narrow white ring at the base, but both this and 

 the broad ring on the second tarsal joint are sometimes incomplete dorsally. 

 Usually the front tarsi are entirely dark, but there is sometimes a white ring on 

 the second joint. 



Sierra Leone ; Ashanti; N. and S. Nigeria: N. Kamerun ; Congo; Uganda; 

 British Central Africa ; S. Rhodesia ; Natal. 



3. T. phytophagus, Theo. (phytophygus), Mon. Cul. V, p. 102 (1910). 

 Ashanti. 



Tribe Culicini. 



Thorax more or less rounded ; metanotum without bristles ; scutellum more or 

 less distinctly trilobed. Larvae with air-tube and median ventral brush on anal 

 segment (after the first stage). 



This tribe includes the old genera Culex and Aedes, which were defined as 

 having long and short palpi respectively in the male. Most authors have used 

 this character for the primary division of the group, a division which was adopted 

 by the writer (Bull. Ent. Res. Oct. 1911, p. 242). Messrs. Dyar and Knab, 

 however, owing to their exhaustive study of the larval characters of the North 



* The metatarsus is reckoned as the first joint. 

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