368 



ENTOMOLOGICAL NEWS. 



[Oct., '17 



An Egg Parasite of the Sumac Flea-Beetle 

 (Hym., Chalcid.). 



By C. R. Crosby and M. D. Leonard, Cornell University, 

 Ithaca, New York. 



Mr. Loren B. Smith, of Norfolk, Virginia, has sent us speci- 

 mens of a hymenopterous parasite reared by him from the eggs 

 of the sumac flea-beetle (Blcpharida rhois Forster). The spe- 

 cies is apparently undescribed. 



Tetrastichus ovipransus n. sp. 



9 Length, 1.2 mm. General color bluish black. Head bluish black, 

 brownish in front of ocelli in alcoholic specimens. Thorax bluish 

 black, very finely longitudinally striolate. Antennae yellowish brown, 

 scape noticeably paler. The relative length of the antennal segments 

 may be expressed by the following ratio : scape 6, pedicel 3, funicle 

 segments 4, 4.5, 4.5, club 10. Ring segment small but distinct. The 

 three-segmented club is of the same width as the funicle segments and 

 pointed at the tip. Coxae and femora, except tip, black, remainder of 

 legs pale straw colored. Abdomen dark brownish with a metallic 

 tinge, especially above. 



Described from 14 female specimens reared July 20, 1916, 

 and 3 female specimens reared June 24, 1916, from eggs of 

 Blcpharida rhois, Norfolk, Virginia. 



Types in the Cornell University collection. Type No. 76. 



