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Abstract SU1~i.:lAHY ’”Tc.x::JnJmical an.d ec::Jlogical .studies on subfamily PlusiD,ae (Lepidoptera) in Egypt. ” The present work includes studies on the seasonal activity of the m::1ths and a survey of the host plants for seven species of the subfamily plusiinae in ~gypt. Detailed morphologice.l and te.xonomical description of the seven species e.re also :..,:li.ve:::1 The results obtained could be summsxized :J.S follows: I- Seas:>no.l activity of the moths: ------------------------------ To study the seo.s:mal activit~’ of the 1no ths, four light tl’:<.ps we:re distributed ot f:.lUr localities represetlting different regi :Ji1S of ,;gyp t i, e. S;w,rkiya- Faquous, :·1iflia- Abu Qucrkas, F~·:Ju.~TI-Fac.’:Jum and Solmco; - Sho.ndweel. The 1 i(sh t trr;;Js wee· ::;:•ero.ted f:Jr tw::J co.nplete yeo.rs (1976 D.nd 1977). Daily cotc,1es were obtained, Fo:L· Aq!_ograp~ ,&o.Tll;]l8., ti1is species WRS the most co;·,lmon speoiGs aild widely distributed in middle and upper ,;c;ypt th2.1.1 :L”l l:Jwer Jogypt. The 11::1ths were more C1ctive in 1’37Gthan in 1977, On the other llcmd, the moths of chr.z.sode~ .?_ha_l..?.ites were m:ne active during 1977 tho.n in 1976. This species wo.s the most comm::ln Sj)8Cies in lower Egypt :md less distributed in middle and upper Egypt, For ,Syngrapha £i£cumfle~ this species was widely distributed in upper Egypt them in niddle nncl lower Egypt. The moths of this insect vrere more abundant in 1977 th~~ in 1976. On the other hru”d, the moths of Tricho~lua~~ ~were more active L~ 1976 than in 1977. This sp’Cies was widely distributed in lower Egypt and :~;~oderately cLstributed in middle ~1d upper Egypt. With regards to the other three species, TriclJE.J2.1.u.si~ _g_i.£_cumscx:ipta, Tricho;;;lusin daub~ and Trichop),~s_ia .9_r:_ic]lGcl.c_e£ the moths o:f these species were found in few numbers at the four locs.li ties under in.ve.stigations during both yeo.rs. II- HosJ;.....P.lan~: Survey of the :1ost plo.nts sturted by recording the lc~bellod speci,:lens fl’::>r.l tlw c :Jll(’otion of the Entomoloc;icl”.l l1esearch Institute of the ih’listry of Agriculutre, the i1ost luJ1ts for e·,ch species can be listed 2.s follows: lz:~~t_:y:.:;,raJJha. go.rru,.J£ was rccCJrded :on ten host plo.nts bcl:.>,lging to eight famil:Les,these l1:ost )lcc.nts o.re: mexiCN1tea(= z::>rbeh), mo.rehflef’.-bane (=Bflrnuf), cabbage, ;naize, ”Jc;yptio.n clover1 Egyptian lupin, Egyptian acas:i.c\ (=Sant), flax, mavle and tomato, ~yaodeixis chalcites vms recorded on four host plants belonging to four different families, the host plants are: leaf beet, marsh flea - bane ( .. Bo.rnuf), Egyptian clover a..n.d s imsim, $yngrapha circumflexa was found to infest six host plo.nts belonging to five families, these host plants are: leo.f beet, marsh flell-bane (=Barnuf), cabbage, Egyptian clover, pea8 and flax. ~o]~l~i~ ~cumscrip~~ was found only on peas c:;nd toma t::> • The spc.cies !.E_iohoplasi.£ g_:h was recorded on six h::Jst ; J.211ts belanging to five different families, the host The ather two species ~~i.~hoplu~~ Ao.ube~ and orll.chalo-e-ll were onught an.ly by light trL.ps.III- ’raxonomy: To describe the moths of the seven species of l’lusiinae according to the most recent ooneept, permanent mj_croscopical mountings of the male and female genitalia as well as vnng venation had been prepared, IdeJ:tifio~tion had been carried out at the Identification service, plant Prot. Ie>st. of the Ministry of Agriculture, Cairo and confirmed by Prof. Dr. c. Dufay, Universite, Claude Bernard, Lyon I, France, The \7ork revealed that, ~iohoplusia circwnscripta (Frr.) GS a new record, with six other specie$ representing four c;enera as follows:- 1- Genus: l~utogrD::Qh..Q: represented by one species only, ;:’1-ut~gro.pha ~\’l§ (LiJmaous). 2- Genus: Qhrysodeixis represented by one species only, Ohry_sode:i,_xis ~lcites (iJsper). 3- Gem us: Szng_rc . .Q_ho. represented by :me spo cies only, _§l’nlfr’_Wl-a oircunflexo, ( Linnaeus).·1- Genus: Trio~oplus_~ repre:ce:tted by f~ur species, ~c~o~_lu~j& circumJ.!~ri£ta (Freyer) , ~ich221usia daubei (Boisduval), -~ichoplusia ni (Hubner) and .~ichoplusia ~chaloea (Fabricius). A key was c:wstructed for the species under considerati:: w o.ccording to the r•1o.le genitalia only because structures of comparable significance c:mld be more found in males than in fm’lnles to f2cilate identification. |