RILEY ON ITS INSECTIVOROUS HABITS. 113 



No. 5665. — Young male; June 16, 1887, Washington, D. C. Contents : One Hyinen- 

 opteron (only very small pieces). 



No. 5676. — Adult female; June 21, 1887, Washington, D. C. Contents : Six house- 

 flies (Mn sea domestica), with numerous eggs. 



No. 5693.— Young female; July 12, 1887, Washington, D. C. Contents: One Hy 

 menopteron (only very small pieces, apparently of Tiphia). 



No. 5701. — Adult female ; July 13, 1887, Washington, D.'C. Contents : Eleven flea- 

 beetles (Chcetocnema denticulata) ; one Colaspis flavida. 



No. 5705.— Young female ; July 13, 1887, Washington, D. C. Contents : One Hy- 

 menopteron (Myzine 6-cincta). 



No. 5712. — Young female; July 14, 1887, Washington, D. C. Contents: One leg 

 of a longicorn beetle (Liopus sp.); parts of a Hymenopteron (Myzine 6-cincta); legs 

 of a minute Hymenopteron ; one leg of a spider. 



No. 5713. — Young female; July 14, 1887, Washington, D. C. Contents : Very small 

 pieces of a Hymenopteron (Myzine 6-cincta) ; several flea-beetles (Chcetocnenta denticu- 

 lata). 



No. 5720. — Young female; July 15, 1887, Washington, D. C. Contents: Numerous 

 pieces of Hymenoptera (Myzine 6-cincta) ; traces of a Heteropterou. 



No. 5916. — Adult female ; August 9, 1887, Washington, D. C. Contents : Two snout- 

 beetles (Sphenophorus parvulus). 



No. 5917. — Adult female; August 9, 1887, Washington, D. C. Contents: Two snout- 

 beetles (Sphenophorus pai villus). 



No. 5924. — Young ma]e; August 9, 1887, Washington, D. C. Contents: Many flea- 

 beetles (Chcetocnema denticulata)', legs of a snout-beetle (Sphenophorus parvulus). 



No. 5940. — Young male; August 11, 1887, Washington, D. C. Contents: One flea- 

 beetle (Chcetocnema denticulata)', traces of a Hymenopteron (Myzine 6-cincta). 



No. 5941. — Young male ; August 11, 1887, Washington, D. C. Contents : One Hymen- 

 opteron (Myzine 6-cincta). 



No. 5945. — Young male; August 12, 1887, Washington, D. C. Contents : One Hymen- 

 opteron (Myzine 6-cincta). 



No. 5946, — Young female; August 12, 1887, Washington, D. C. Contents: Two small 

 Noctuid larvae ; 1 snout-beetle (Sph. parvulus); 5 flea-beetles (Chcetocnema denticu- 

 lata); 1 Myzine 6-cincta. 



No. 5951.— Young male; August 12, 1887, Washington, D. C. Contents: One snout- 

 beetle (Sph. parvulus) ; 1 Hymenopteron (Myzine 6-cincta). 



No. 5953. — Adult female; August 12, 1887, Washington, D. C. Contents: One Hymen- 

 opteron (Myzine 6-cincta). 



No. 5954. — Young male; August 12, 1887, Washington, D. C. Contents: One leaf- 

 hopper (Erythroneura sp.) 



No. 5967.— Adult female; August 13, 1887, Washington, D C. Coutents : One leaf- 

 hopper (Erytlioncura sp.); 2 ants (Brachymyrmex heeri, female). 



No. 5970. — Female; August 13, 1887, Washington, D. C. Contents: Three flea- 

 beetles (Ch. denticulata)', 3 Hymenoptera (Myzine 6-cincta). 



No. 5971. — Female; August 13, 1887, Washington, D. C. Contents: Two Hymen- 

 optera (Myzine 6-cincta); remains of 1 ant. 



No. 5972.— Male; August 13, 1887, Washington, D. C. Contents : Pieces of the leg 

 of Lachnosterna ; 2 Hymenoptera (Myzine 6-cincta). 



No. 5973. — Young male; August 13, 1887, Washington. D. C. Contents: One leg of 

 mole-cricket (Gryllotalpa sp.). 



No. 5975.— Young; August 15, 1887, Washington, D. C. Contents; Four ants (Mo- 

 nomorium pharaonis); several Hymenoptera (Myzine 6-cincta). 



No. 5976.— Young; August 15, 1887, Washington, D. C. Contents: Five ants (Mo- 

 nomorium pharaonis); 1 Hymenopteron (Myzine 6-cincta). 



No. 5977. — Young male; August 15, 1887, Washington, D. C. Contents: Small pieces 

 of several Hymenoptera (Myzine 6-cincta). 

 8404— Bull. 1 8 



