Records of Bees. 27 



gradual; second and third ventral segments with much white 

 tomentum, those beyond the third dark. 



Hob. San Gabriel Mountains, near Pasadena, California, 

 1750 feet, July 15, 1909 (F. Grinnell, Jr.). 



The size and general appearance is like that of T. norce, 

 Ckll., but the new species is easily separated by the colour of 

 the legs, the marking of the second abdominal segment, &c. 



At the same locality, on the same day, Mr. Grinnell took 

 Bombus vosnesenskii } Rad. 



PSEUDOMELECTA, Radoszk. 



This genus was based on certain Asiatic species in which 

 the scutellum is bituberculate and the hair of the thorax is 

 short, as in Crocisa. The American species of the group of 

 Af. miranda, Fox, are very distinct from true Alelecta, and I 

 had some idea of separating them under a new generic name, 

 but I believe they may be correctly referred to Pseudomelecta. 

 The ornamentation of the abdomen is Bpeolus-Uke, and the 

 five-jointed maxillary palpi are very small ; for particulars 

 concerning the mouth-parts see Ann. & Mag. Nat. Hist., 

 July 1902, p. 45. Genuine AJ electa is much more like 

 Bombomelecta than Pseudomelecta in appearance, and even in 

 scutellar structure. I have examined the mouth-parts of 

 A/, armata, Panz., and find them to be similar to those of 

 Pseudomelecta miranda, but the maxillary palpi, though five- 

 jointed, are quite long (970 fi), while those of P. miranda, 

 a bee of about the same size, are only about 425 /j,. The 

 hyaline area of the maxillary blade is much broader in AI. ar- 

 mata than in P. miranda. Thus Alelecta (which does not 

 occur in America) falls exactly between Bombomelecta (exclu- 

 sively American) and Pseudomelecta (Asiatic and American). 

 Of these, Bombomelecta is the most primitive, having very 

 long six-jointed maxillary palpi, while Pseudomelecta is the 

 most advanced. The group probably originated in America, 

 migrated to Eurasia, and finally gave back to America the 

 much modified type Pseudomelecta. The American forms of 

 the latter genus are : — 



Pseudomelecta calif or nica (Cresson). 

 Pseudomelecta. californica miranda (Fox). 

 Pseudomelecta interrupta (Cresson) . 

 Pseudomelecta interrupta fall ug ice (Ckll.). 

 Pseudomelecta interrupta rociadensis (Ckll.). 

 Pseudomelecta pasadenensis, sp. n. 



? . — Length about 12 mm. 

 Agreeing with P. californica miranda, except as follows: 



