›› 1999, Vol. 42 ›› Issue (-1): 26-30.

• RESEARCH PAPERS • Previous Articles     Next Articles

IDENTIFICATION OF DIFFERENT INSTARS AND ADULT OF RUSSIAN WHEAT APHID

Zhang Run-zhi, Zhang Jun, Du Bing-ren   

  • Online:1999-12-20 Published:1999-12-20

Abstract: Under condition of 20~25℃, (80±10)% (RH) and 16∶8 (D∶L), the body length, body width, head width, siphunculus width, cauda length, supracauda length, antenna length, and third antennal segment length were significantly different among various instars and adult of the Russian wheat aphid. A key to different instars was given according to wing, wing bud, antennal segments, cauda shape, supracaudal morphs, and ratio of length to basal width of supracauda.

Key words: Russian wheat aphid (Diuraphis noxia (Mordvilko)), morphological features, key to instars and adult