214 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.55. 



tarsi; spurs black; hind basitarsi narrow, not modified; abdomen 

 dullish, more shining apically, with large not very close punctures, 

 and no distinct hair-bands; second and third segments deeply: 

 grooved at base; first segment with white hair at extreme sides; 

 the others with short pure white hair bands at sides, hardly notice- 

 able from above, but conspicuous in lateral view; ventral scopa 

 shining yellowish-white, black on last segment and on apical middle 

 of penultimate one. 



Type.— Cat. No. 21693 U.S.N.M. 



Punjab and United Provinces, VI-X (E. L. Woglum). A very 

 distinct species, recalling Megach'de longula Fox,, from Lower Cali- 

 fornia, which was described as a Lithurgus. The insect may be 

 placed in the Asiatic fauna next to the large species of the subgenus 

 Eumegachile., which it resembles more or less in structure. The 

 genus Megaehile is richly represented in the Indian region, and the 

 accurate classification of the species presents a problem of consider- 

 able difficulty. Northeastward and in Baluchistan there is a large 

 Palaearctic element. Some years ago Major Nurse kindly communi- 

 cated to me some records and synonymy which ought to be published, 

 as follows : 



Megaohilc uJmca Nurse is M. terTnimda Morawitz. 



Megaehile nadia Nurse is M. rolundata Fabricius. 



Megaehile appia Nurse is BI. centuncidarls Linnaeus. 



Megaehile lerma Cameron is M. umhripennis Smith. 



Megachde rugieauda Cameron is M. •patcllimana Spinola. 



Megaehile creusa Bingham is M. -flavipes Spinola. 



It is also known that M. gathela Cameron is M. nana Bingham; 

 M. homhayensis Cameron is M. hera Bingham ; M. erythrostonfia 

 Cameron is also hera. 



Some of Cameron's supposed Megacliile belong to other genera: 



Megaehile anonyma Cameron = (9 .s'w./a anonyma. 



Megaehile phaola Csim.eron^= fferiades phaola. 



Megaehile saphira Ci\meron= Hcriades saphira. 



Megaehile elfroma Ca.mevon= Heriadcs elfroma. 



The following were taken by Major Nurse and determined by 

 Friese : 



(1) At Deesa. Megaehile seraxensis Radoszkowski. 



(2) At Quetta. Megaehile moi^atvitzi Radoszkowski; M. mridicollis 

 Morawitz; M. multispinosa Morawitz; M. argentata Linnaeus; M. 

 desertoruni Morawitz ; and M. asiatica Morawitz. 



MEGACHILE TUXTLA Creseon. 



Mexico, D. F. (Inda, 46.59). Both sexes; the male represents a 

 variety with hair on apical segments of abdomen greyish-white in- 

 stead of ffolden. 



