206 MEDICAL ENTOMOLOGY 



Theobald's Table of the Subfamilies of the Culicidae. 



A. Scutellum simple, never trilobed. Proboscis straight ; . 



palpi long in male and female . Anophelinae. 

 AA. Scutellum trilobed. 



a. Proboscis strongly recurved ; first submarginal cell very 



small , Megarhininae. 



aa. Proboscis straight ; metanotum nude. 



1 . Wings with six long-scaled veins 2 



Wings with seven long-scaled veins . . . . . Heptaphle- 



bomyinae. 



2. Antennae with second joint normal in length ...... 3 



Second segment of antennae very long .... Deinoceratinae. 



3. First submarginal cell as long or longer than second pos- 



terior cell ............ 4 



First submarginal cell very small, smaller than second 



posterior cell Uranotaeninae. 



4. Palpi of female shorter than proboscis, of the male longer. Culicinae. 

 Palpi short in male and female ...... Aedinae. 



aaa. Proboscis straight ; metanotum with scales or chaetae , 



5. Palpi long in male short in female ..... Trichoprosopn- 



inae. 

 Palpf short in male and female ..... Dendromyinae. 



aaaa. Proboscis elbowed ....,.., I .imatinae. 



Alcock suggests a simpler grouping of the Culicinae (sensu lato), 

 which he divides into four sections as follows : 



Section 1. Megalorhinina (Megarhininae, Theobald). Mosquitoes in 

 which the proboscis is very long and curved downwards, the apical 

 part being much thinner than the basal. Palpi of the female either 

 short or long. Wings narrow and somewhat elongated, the first ' fork 

 cell ' shorter than the second. Large, usually blue or green mosquitoes, 

 non-biting, and with predaceous larvae. 



Section 2. Culicina (Culicinae, Heptaphlebomyinae, Dinoceratinae, 

 Aedinae and Uranotaeninae, Theobald). Mosquitoes in which the pro- 

 boscis is of the usual type but not recurved ; head clothed with different 

 types of scales ; palpi in the male long or short, many gradations existing 

 between the two. Thorax round with a trilobed scutellum thickly 

 covered with scales ; metanotum without hairs or bristles. Wings, 

 though rarely spotted, may be speckled or mottled. 



Section 3. Metanotrichinia (Trichoprosopinae, Dendromyinae and 

 Limatinae, Theobald). Mosquitoes in which the proboscis is of the 

 usual type; the head, scutellum, and sometimes the thorax, are clothed 

 with flat scales ; palpi may be short in both sexes, or short in the 

 female alone. Metanotum with a few bristles. 



Section 4. . Anophelina .(Anophelinae, Theobald). Mosquitoes in 

 which the proboscis is of the usual type ; the head, is clothed .with upright 



