srnECosoMA. 159 



patch on medial part of shaft ; thorax yellow ; tegute edged with 

 black ; patagia and raetathorax striped with black : abdomen fulvous 

 yellow ; wings hyaline, the veins and margins narrowly dark. 

 Fore wing with slight fulvous-yellow streaks ou costa and inner 

 margin. 



Hah, Be. Guiana, Demerara, type; Amazons, Para {Austen), 

 2 d . Ktj:^. 28 millim. 



B. Fore wing with veins 4, 5 separate at origin. 



a. Fore wing of male with thick fringe of long hair on vein 1 below ; 

 hind wing with fringe of hair oii costa above ; both sexes with the 

 cell long •, veins 2 and 4 from angle, 3 from 2 near margin ; 5 obsolete. 



313. Sphecosoma abnormis, n. sp. 



Head and thorax orange ; antennce blackish at base and ex- 

 tremities ; vertex of head black and leaden blue ; tegulse and patagia 



black edged with orange ; thorax 

 -^^ ^^ ^ ^ striped with black ; abdomen ful- 

 fil ^^<^^^ ;''■ vous, the first two segments 



>' ' ])lackish above, the 1st with 



||/ dorsal orange spot, the terminal 



^ segments with obscure silvery blue 



Fig. 71. dorsal bands ; wings hyaline, the 



Sphecosoma ahnormis, S- ^ veins and margins narrowly black. 



Fore wing with slight subcostal orange streak, terminal band 



expanding towards apex. 



Hah. Lower Amazons, Massauary, 1 $ type, S m Coll. Staudiuger. 

 Exjp. 30 millim. 



h. Fore wing of male without fringe of hair on vein 1 ; hind 

 wing with the lower part of cell very short, veins 2 and 

 4 on a long stalk. 

 a\ Thorax black and yellow. 



«^. Abdomen banded yellow and black. 



a^. Antennae with the medial part orange cognatum. 



b^. Antennae wholly black melissa. 



b^. Abdomen black beyond the peduncle. 

 a^. Abdomen witli three black streaks on 1st segment ; 



fore wing without red streak on costa surrentum. 



b^. Abdomen with black bands on basal segments ; 

 fore wing with red streak on n:iedial part of 



costa cciiadorum. 



h^. Thorax wholly black ; abdomen with the terminal 



segments black, with one or two yellow bands melanotum. 



314. Sphecosoma cognatum. 



Tseudosphex cognata, Wlk. vii. 1619 (1856) ; Kirby, Cat. Het. p. 155. 

 Sphecosoma fasciolatum , Butl. Journ. Linn. Soc, Zool. xii. p. 381 (1876) 

 Druce, Biol. Centr.-Am., Het. i. p. 54 (part) ; Kirby, Cat. Het. js. 135. 



Head, thorax, and abdomen pale yellow ; palpi and legs 



