SPHECOSOMA. 159 



patch on medial ])art of shaft ; thorax yellow ; tegular edged with 

 black ; patagia and mctathorax striped with black : abdomen fulvous 

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

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

 margin. 



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

 2 6 . Exp. 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 on costa above ; both sexes with the 

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



313. Sphecosoma abnormis, n, sp. 



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

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



black edged with orange ; thorax 

 striped with black ; abdomen ful- 

 vous, the first two segments 

 blackish above, the 1st with 

 3 ^*''«*^ (% dorsal orange spot, the terminal 



^ segments with obscure silvery blue 



Fig. 71. dorsal bands ; wings hyaline, the 



Sphecosoraaahnormh, ^. \. veins and margins narrowly black. 

 Fore wing with slight subcostal orange streak, terminal band 

 expanding towards apex. 



Hah. Lower Amazons, Massauary, 1 5 type, S in Coll. Staudiuger. 

 Exp. 30 millim. 



h. Fore wing of male without fringe of hair ou 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. 



a?. Abdomen banded yellow and black. 



a^. AntenniB with the medial part orange coqnatum. 



b^. Antenute wholly black tyielissa. 



b^. Abdomen black beyond the peduncle. 

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



fore wing without red streak on costa surrentum. 



h^. Abdomen with black bands on basal segments ; 

 fore wing with red streak on medial part of 



costa ecuadorum, 



b^. Thorax wholly black ; abdomen with the terminal 



segments black, with one or two yellow bands mclanotum. 



314, Spliecosoma cognatum. 



Pseudospkex cognafa, Wlk. vii. 1610 (ISotJ) ; Kirby, Cat. Het. \x 155. 

 Spheeosoma fasciolafum, Butl. Journ. Linn. Soc, Zool. xii. p. 381 (1876) ; 

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



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



