282 

 ANNUAL ADDRESS. 



Report on a Collection of Hymenoptera Made in Guam, 

 Marianne Islands. 



BY DAVID T. FULLAWAY. 



The species of hymenoptera listed and described below were 

 taken by the writer in 1911 on the island of Guam in the course 

 of some entomological work for the local government experiment 

 station. Fifty-three species are included, of which 11 are de- 

 scribed as new to science. It is regretted that many species 

 can only be referred to their genera but in view of natural diffi- 

 culties surrounding descriptive work in certain groups of the 

 hymenoptera and the inability of the writer to use any of the 

 large collections for comparison of material, it seemed the only 

 safe plan. The most interesting feature of the work is the re- 

 covery and comparatively easy recognition of Holmgren's spe- 

 cies collected by the Swedish expedition in the '''Eugenie" in 

 1851-3. This list does not include the Formicidae, which were 

 done bv Dr. W. M. AVheeler of Harvard Universitv, cf. Jour. X, 

 Y. Ent. Soc. vol. XX (1), p. 44. 



APIDAE. 



1. Apis m-ellifera Linn. 



Introduced from the Hawaiian Islands in 1907. 



MEGACHILIDAE. 



2. Lithiirgus sp. 



3. Megachile sp. 



4. Megachile sp. 



AX^DREXIDAE. 



5. Halictus sp. 



PROSOPIDAE. 



6. Prosopis sp. 



Dr. Perkins has kindly furnished me with the following 

 note on this species: ^'Belongs to group with largely developed 

 wings of 7th ventral segment, a bifurcate apex to 8th segment, 



Proc. Haw. Ent. Soc, II, No. 5, July, 1913. 



