of Exotic Hymenoptera. 151 



Genus Lagobata, n. g. 



Head not quite as wide as the thorax ; eyes ovate ; ocelli in a curve on 

 the vertex ; mandibles small, subacute and edentate ; labial palpi 

 4-jointed, the two basal joints elongate, flattened, broad, of about equal 

 length, their inner margin thin and semitransparent, the second joint 

 pointed at the apex ; the two apical joints minute, inserted near the 

 apex of the second joint towards its apex; the palpi a little shorter 

 than the labium; the labium lanceolate, acute at its apex. The 

 maxillary palpi short, G-jointed, each joint in succession more slender 

 than the preceding ; the inner margin of the maxilla?, towards its apex, 

 fringed with short thick setae ; the maxillary lobe fringed with setae 

 longer than those on the maxilla. Thorax globose ; the anterior wings 

 with one marginal cell, which is rounded at its apex ; with three sub- 

 marginal cells of nearly equal length, the first subquadrate, the second 

 narrowed towards the marginal cell and receiving the first recurrent 

 nervure in the middle ; the third much narrowed towards the marginal 

 cell ; the posterior legs with long dense scopse ; the claws of the tarsi 

 simple. 



This genus of bees is closely allied to those which are included in 

 the genus Panurgus, and appears to me to form a connecting link 

 between the latter and the genus Megachile. The species resemble 

 those of the genus Tetrapedia of Klug. 



1. Lagobata diligens. 



L. ferruginea, thorace abdomineque nigro maculatis ; alis hyalinis, venis 

 pallide testaceis. 



Female. Length 5 lines. Ferruginous, inclining to yellow; the 

 region of the scutellum and a triangular shape between the antenna? 

 black; in some examples the front is altogether blackish, in others 

 wholly rufo-testaceous, the clypeus and labrum pale rufo-testaceous ; 

 the flagellum more or less fuscous above ; the tips of the mandibles 

 blackish. Thorax : the disk sometimes black above, or with two oblong 

 black macula?, in some specimens obsolete; the metathorax usually 

 with black stains, the pectus black; the wings colourless-hyaline, 

 iridescent, with the nervures pale testaceous; the legs pubescent, the 

 posterior pair with long dense fulvous scopa?. Abdomen oblong, nar- 

 rowed to the apex; the first and three following segments with an 

 ovate black spot on each side; sometimes the basal margins of the 

 segments are black, the black spot uniting with tbe basal band ; the 

 apical margins are in some examples stained, no two specimens exactly 

 correspond; beneath, much paler than above, each segment with a 

 round spot, more or less dark ; the apex of the abdomen with fulvous 

 pubescence on each side. 



Hab. Para, Ega, and St. Paid's (Brazil). 



m2 



