364 HYMENOPTERA. 



half the width of the first, the third submarginal cell longer than 

 the first, widest at its apex ; the first recurrent nervure uniting 

 with the second transverse nervure ; the second recurrent nervure 

 received by the third submarginal cell a little beyond the middle. 



1. LESTIS BOMBYLANS. B.M. 



Apis bombylans, Fabr. Ent. Syst. ii. 338. 104 $ , and Cab. Mm. 



Linn. Soc. 

 Lestis bombylans, Smith, Trans. Ent. Soc. Lond. i. 1 . new ser. 



Hob. Australia. 



The Centris muscaria of Fabricius is a Xylocopa $ . 



2. LESTIS ^ERATUS. B.M. 

 Lestis seratus, Smithy Trans. Ent. Soc. Lond. i. new series. 

 Hab. Australia ; Hunter River ; Van Diemen's Land. 



Genus 55. EXOMALOPSIS. 



Exomalopsis, Spin. Me/a. Accad. Torino, xiii. 89 (1851). 



Head as wide as the thorax, the ocelli placed in a line on the 

 vertex. The labial palpi 4-jointed, the two basal joints elongate, 

 the first twice the length of the second, the third and fourth 

 minute, placed at the side and near the apex of the second joint. 

 The maxillary palpi 6-jointed, the three basal joints of about 

 equal length, the three apical joints gradually decreasing in 

 length. The superior wings having one marginal and three sub- 

 marginal cells, the second submarginal cell small, subquadrate ; 

 the first recurrent nervure uniting with the second transverse 

 cubital nervure, the second recurrent nervure received near the 

 apex of the third submarginal cell, which is narrowed towards 

 the marginal cell. The posterior tibiae furnished with a dense 

 pollen-brush ; the calcaria simple, the claws bifid. The abdo- 

 men globose. 



1. EXOMALOPSIS AUROPILOSA. B.M. 

 Exomalopsis auropilosa, Spin, Mem. Accad. Torino, p. 89. 72. 

 Hab. Brazil (Para). 



2. EXOMALOPSIS ANALIS. 



Exomalopsis analis, Spin. Mem. Accad. Torino, xiii. 91. 73. 

 Hab. Para. 



