242 culicida:. 



pygium as long as the abdomen, and thicker ; lateral arms massive, 

 oblong, with a smaller malleoliform piece articulated to the end ; below 

 them an oblong plate, rounded at the tip. Legs of moderate length ; 

 fore pair distorted at the base ; coxpe ferruginous ; extreme base of 

 the tilnfe blackish ; tarsi shorter than the tibiae ; anterior pairs with the 

 first joint long, the following three very short ; hind pair with the third 

 joint also elongated. 



" Inhabits the sea-coast, among the moist gravel bared by the 

 ebbing tide ; walks about with the wings raised, and half exj^anded, 

 in constant vibration, but without taking flight, as far as ob- 

 served." — Haliday. July. Holywood (Down) ; Yalentia Ferry 

 (Kerry). (I.) 



Family VIL CULICID^. 



CuLiciD^, Steph. Syst. Cat. ii. 232 (1829); Curt.; Westw. ; Hal. 

 TipularifS culiciformes p., Meig. CiiUcides, Latr. ; Mcq. ; Zett. Cu- 

 Uchia p., Newm. Calicina, Agass. Cidicince, Eond. 



Ocelli nulli. Mesothoracis scutum integrum. Alae oblongae, incum- 



bentes, apice rotundatfe ; margo posticus squamis fimbriatus ; vena 



costalis circum marginem posticum attenuata ; venae apicales plus- 



quam sex. 



Ocelli none. Scutum of the mesonotum undivided. Wings and 

 halteres developed. Wings oblong, roimded at the tip, incumbent ; 

 hind margin fringed with scales ; costal vein attenuated round the hind 

 margin ; veins in their last subdivisions more than six. 



This family contains the five following genera : — 

 a. Proboscis long, with mandibles and maxillae. 



b. Palpi short in the female. 



c. Palpi short in the male. 1 . Aedes. 

 c c. Palpi long in the male. 2. Culex. 



b b. Palpi long in the male and the female. 3. Anopheles. , 

 a a. Proboscis short, without mandibles or niaxillai. 



b. Metatarsus longer than the second joint. 4. Cokethra. 



b b. Metatarsus shorter than the second joint. 5. Mochlonyx. 



Genus I. AEDES. 



Aedes, Hoffm. ; Meig. Zw. i. 13 (1818) ; Mcq. ; Stasg. ; Zett. 



Corpus elongatum, parvura, pubescens. Caput parvum. Oculi trans- 

 versim lunati, supra antennas conjuncti. Proboscis porrecta, au- 

 tennarum lougitudine. Palpi brcvkslmi. Antennae li-articulatcE, 

 porrectae, filiformes, thoracis lougitudine. Thorax subconvexus. 



