22 ANDUENri)^. 



und with a low short stritc at Iho baso ; wings siibliyalino, and 

 iridescent, faintly clouded at their apex. Al)domoii smooth and 

 shinin;;; ilic a])ieal margin of the second scgmcut and the follow- 

 ing segmenld black. 



JIah. Island of Kauai. 



" Taken sparingly on Howcrs '' {Rev. T. Blaclcharn). 



16. Pi'osopis rugosa. 



J/«7c. Length 2| lines. — Black, and with pale yellow markings ; 

 the thorax coarsely rugose. Head below the antenna) and a 

 little above them at the margin of the eyes, the scape in front, 

 and first joint of the flagellum, the labium, and mandibles ])ale 

 yellow ; the flagellum fulvous beneath. Thorax with a line on tlie 

 collar, the tubercles, a minute spot on the tegnla), the tibia) and 

 tarsi, as well as the scutcllum, yellow ; the coxa), trochanters, and 

 femora, as well as the apical half of the posterior tibia), rufo- 

 piceous ; the metathorax truncate and covered with fine hoary 

 pubescence, the enclosed space at the base shining and longitu- 

 dinally deeply fculptured ; wings hyaline and iridescent. Abdomen 

 shining, and with a few scattered fine punctures at its base ; the 

 base rounded, thence gradually narrowing to a point at its apex ; 

 on the apical margins of the two basal segments, laterally, there 

 is a narrow line of white pubescence. 



Hah. Brazil, St. Paulo. 



17. Prosopis vigilans. 



Female. Length 3 lines. — Black, with yellow markings ; the thorax 

 strongly punctured. Head with a broad stripe along the inner 

 orbits of the eyes, running upwards nearly to their summit, and 

 a broad line down the middle of the clypeus yellow ; the flagellum 

 fulvous beneath. Thorax with the collar, the tubercles, a spot 

 on the tegulae in front, the scutellum, and a small ovate spot 

 at each of its anterior angles, the anterior tibiae outside, and the 

 intermediate and posterior pairs at their base yellow ; the tarsi 

 fusco-ferruginous ; the mesothorax with a black velvety texture 

 anteriorly ; the metathorax concavely truncate, and with a fine 

 hoary pilosity; the enclosed space at the base longitudinally 

 grooved ; wings subhyaline and iridescent. Abdomen shining and 

 impunctate, roimded at the base, and narrowing gradually to a 

 point at its apex ; a little white pubescence on the apical margins 

 of the two basal segments laterally. 



Hab. Yal de Fucgo, Central America. 



