REVISION OF SPECIES OF STILOBEZZIA KIEFFER 15 



described and figured the pupa of glauca Macfie and wygodzinskyi 

 Lane from Brazil. 



Behavior. — Little specifically has been published on adult habits. 

 Edwards (1920) published records of female $. gracilis (Haliday) 

 preying on various small chironomid midges. Species of the Notata 

 Group hold their wings side by side while at rest, not as usual over- 

 lapping above the abdomen (Malloch, 1915; de Meillon, 1936). This 

 habit has been reported also for 2 species of the Subviridis Group: 

 flavirostris (Winnertz) by Edwards (1926) and antennalis (Coquillett) 

 by Malloch (1915). 



Bionomics. — Breeding habits have been reported for: bata de 

 Meillon and Hardy reared from a swamp (de Meillon and Hardy, 

 1954) ; antennalis (Coquillett) and bulla Thomsen reared from mud 

 in New York (Thomsen, 1937); africana (Ingram and Macfie) and 

 versicolor (Ingram and Macfie) reared from Pistia in a swamp in 

 West Africa (Ingram and Macfie, 1921) ; f estiva Kieffer reared from 

 the muddy fringe of water pools in Calcutta (Sen and Das Gupta, 

 1964) ; limnophila Ingram and Macfie reared from mud and in West 

 Africa (Ingram and Macfie, 1922); poikiloptera (Ingram and Macfie) 

 from Pistia; perspicua Johannsen reared from larvae in hot springs 

 and in a rice field in Sumatra (Johannsen, 1931; Mayer, 1934); 

 and spirogyrae Carter, Ingram and Macfie reared from a washing 

 place in a river and a swamp rich in aquatic vegetation on the Gold 

 Coast (Carter, Ingram, and Macfie, 1921), and from a Sesuvium 

 swamp and mud under a mangrove in Gambia (Clastrier and Wirth, 

 1961). 



Key to the Subgenera of Stilobezzia 



1. Wing with IRC obliterated and vein Ri arising at or past r-m; legs with stout 



spines on fore femur midventrally or at base. 



Eukraiohelea Ingram and Macfie 



Wing with IRC present, usually spacious, rarely very small; legs without 



stout spines on femora 2 



2. Wing with macrotrichia on the surface, at least a few at apex near wing 



margin Neostilobezzia Goetghebuer 



Wing without macrotrichia on surface Stilobezzia Kieffer 



Subgenus Eukraiohelea Ingram and Macfie 



Eukraiohelea Ingram and Macfie, 1921, Ann. Trop. Med. Parasit., vol. 15, p. o47. 

 [Type-species, africana Ingram and Macfie, desig; Macfie, 1940c] 



Diagnostic characters (figs. 35-40, 45, 46). — Small to medium- 

 size species, usually slender with some color pattern in thorax, ab- 

 domen, and legs. Eyes moderately to broadly separated; female 

 antenna with III-X often cylindrical, XV without apical seta. 



