SrHECOSOMA. 157 



Genus SPHECOSOMA. 



Type. 

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



Proboscis well developed ; palpi upturned, reaching vertex of head, the 2nd 

 joint fringed with hair, the 3rd acuminate ; frons hairy ; antennse bipectinate, 

 the branches dilated at extremity, the shaft dilated at middle, especially in feiuale; 

 tibise Avith the spurs moderate ; abdomen with the 2nd segment pedunculated, 

 the 1st with bladder-like lateral tubercles. Fore wing with vein 3 from before 

 angle of cell ; 4 ,-y from angle or separate ; 6 from upper angle ; 7, 8, 9, 10 

 stalked ; 11 from cell. Hind wing usually with the lower part of cell extremely 

 short, the discocellulars angled just above median nervure ; veins 2 and 4 on a 

 long stalk ; 3 and 5 absent ; 6, 7 from upper angle. 



Sect. I. Abdomen with long and slender peduncle to 2nd segment ; the 

 1st segment with two large bladder-like ventral tubercles, no valve 

 covering the segments beyond the peduncle. 



308. Sphecosoma angustatum. 



Sphecosoma angi(stata, Moschl. Verb, zool.-bot. Ges. Wien, xxvii. p. 634, 



pi. 8. f. 2 (1877) ; Kirby, Cat. Het. p. 135. 

 Sphecosoma tedaccwn, Druce, Biol. Centr.-Am., Het. i. p. 54, pi. 6. f. 27 



(nee Wlk.). 



Head and thorax yellow ; palpi whitish and black at sides ; 



8 



Fig. 69. — Sjyhecosoma angiisfatum, S. 



antennae with the branches blackish ; vertex of head, neck, and 

 tegulce banded with black ; tegulge, thorax, and 1st segment of 

 abdomen striped with black ; abdomen fulvous yellow beyond the 

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

 Fore wing with slight fulvous-brown streaks on costa and inner 

 margin. 



Hah. Guatemala, Yera Paz ; Panama, Chiriqui, 4 c? 2 $ 

 {Champion), type Godman-Salvin Coll. ; Sueinam, type f in Coll. 

 Staudinger. Exp. 24 millim. 



Sect. II. Abdomen with shorter and stouter peduncle to 2nd segment, the 1st 

 segment without ventral bladder-like tubercles ; male with a ventral 

 curved valve covering 2nd and 3rd segments. 



A. Fore wing with veins 4, 5 from a point. 



a. Abdomen orange, with narrow blue-black bands arctatnm. 



h. Abdomen pale yellow, with broad black bands. 



a^. Fore wing without ajiical black patch deceptrix. 



h^. Fore wing with apical black patch simile. 



c. Abdomen fulvous yellow, without bands testaccuiiu 



