112 



species, as are some of our red and black Hawaiian 

 Nesoyrosopis, since the curved sweeping hairs of the front lega 

 are well developed and have noticeably dilated, or spatulate, 

 apices. 



I should have said above, that, as conjectured by Cockerell, 

 F. Smith must have, by confusion, dissected some wasp in mis- 

 take for the wasp-like Hylueoides above referred to, since his 

 figures of the mouth-parts are those of a wasp and not like 

 those of this bee, which I have myself dissected." 



(ii) Lithurgus. 



Dr. Perkins then exhibited an anomalous Lithurgus, and 

 made the following remarks : 



"The bee here exhibited is one of the Megachilidae and is a 

 comparatively recent introduction into the Hawaiian islands. 

 The first specimen taken was caught by Mr. Marlatt of the 

 Department of Agriculture at Washington, when in company 

 with Koebele and myself at Waialua, I think in 1900. On this 

 occasion we took plenty. If the characters given by Ashmead 

 and others for the genera of this family be considered adequate 

 and correct, then this bee constitutes, I believe, an undescribed 

 genus, or it may be considered as a species of Lithurgus 

 sens. lat. Ashmead states that European Lithurgus have no 

 pulvilli, while other American writers state that American 

 species described under the genus have a pulvillus at least in 

 the male and a new genus has been described for one of these. 

 This species, however, is said to have 3-jointed labial palpi. 

 The Hawaiian insect has 4- jointed labial palpi, its mandibles 

 are Lithurgus-like, 3-dentate at apex, and there is a pulvillus at 

 least in the male. Its other oral characters are not at all 

 Megachile-like. Its maxillary palpi are 4- jointed not 2- jointed. 

 (Ashmead, however, gives Megachile 4 joints to these organs!) 

 The tongue is not folded so as to merely lie beneath the head 

 in repose, but is extended straight-back along the sternum, 

 which is channeled for its reception, while the labrum is much 

 less long than in Megachile and projects very little backward 

 from the clypeus." 



(iii) Odynerus. 



Dr. Perkins then read some remarks on the '^'Habitus and 

 Structure of Australian Odynerv^ and Allies compared with 

 those of Hawaii." 



