EXOMALOPSIS. 



125 



clouded beyond the enclosed cells ; the nervuros fusco-ferru- 

 ginous. 



Hab. Island of Formosa. 



EXOMALOPSIS, Spin. 



1. Exomalopsis iridipennis. 



Female. Length 2| lines. — Black and shining, the scopa on the 

 posterior legs black. The face with pale fulvous pubescence at the 

 sides ; the clypeus with a few scattered punctures ; the labrum 

 with pale fulvous pubescence ; the flagellum fulvous beneath. The 

 margin of the prothorax fringed with short white pubescence ; 

 the mesothorax finely punctured ; the sutures of the scutellum and 

 postscutellum with white tomentum; wings clear hyaline and 

 brightly iridescent, the nervures and stigma pale rufo-testaceous ; 

 the apical joints of the tarsi pale ferruginous. Abdomen with the 

 basal segment impunctate, the second and third very finely punc- 

 tured, the apical segments with dense short white pubescence; 

 beneath, the pubescence is pale fulvous. 



Hab. Amazons, Ega. 



2. Exomalopsis planiceps. 



Female. Length 3 lines. — Black and shining; the posterior legs 

 with a dense scopa of black pubescence. Head rotundate, the 

 clypeus punctured. Thorax finely punctured above ; wings hya- 

 line and iridescent, the apical margins clouded, the stigma pale ; the 

 legs obscurely rufo-piceous beneath ; the scopa on the posterior pair 

 sooty black, with a mixture of pale pubescence in front. Abdomen 

 impunctate ; the third segment with golden-coloured pubescence at 

 the sides, the following segments covered with the same. 



Male. Rather smaller than the female ; the face with golden pu- 

 bescence ; the flagellum fulvous in front. The thorax with brown 

 pubescence in front, on the sides and beneath it is griseous ; wings 

 as in the other sex ; the apical joints of the tarsi pale ferruginous. 

 Abdomen with thin short pubescence, that at the sides of the first 

 segment pale ; the third, fourth, and fifth with fasciae of golden- 

 coloured pubescence, the apical segments covered with the same. 



Hab. Amazons, Tunantins. 



3. Exomalopsis tarsata. 



Female. Length 3 lines. — Black and shining. Head rotundate; 

 the face with silvery-white pubescence at the sides ; the mandibles 



