Illeis bielawskii Ghorpade, 1976, 2018

Poorani, J. & Lalitha, N., 2018, Illustrated accounts of coccinellid predators of Maconellicoccus hirsutus (Green) (Hemiptera: Sternorrhyncha: Pseudococcidae) on mulberry in India, with description of a new species of Scymnus Kugelann (Coleoptera: Coccinellidae) from West Bengal, Zootaxa 4382 (1), pp. 93-120 : 113

16. Illeis bielawskii Ghorpade, 1976 , stat. rev.

( FIG. 18 )

Brief description: LENGtH 2.70–4.35 MM, WIDtH 2.15–3.60 MM. FORM ( FIGS 18A, b ) bROADlY OVAl AND cONVEX. EYES WIDElY SEPARAtED. PRONOtUM PlAIN YEllOW, WItHOUt ANY bASAl blAck SPOtS, lAtERAl MARGINS tRANSPARENt. ElYtRA lEMON YEllOW, WItH tWO PROMINENt GRAYISH PAtcHES ON DISc, OUtER MARGINS tRANSPARENt. VENtRAl SIDE UNIFORMlY PAlE YEllOW. MAlE GENItAlIA ( FIGS 18c–E ) AS IllUStRAtED.

Notes: Illeis bielawskii bElONGS tO tHE bistigmosa GROUP OF SPEcIES AND It WAS SYNONYMIZED WItH I. bistigmosa bY IAblOkOFF-KHNZORIAN (1979). It cAN bE DIStINGUISHED FROM tHE NOMINAtE FORM OF I. bistigmosa bY ItS lARGER SIZE, bROADER AND MORE ROUNDED bODY OUtlINE, AbSENcE OF PRONOtAl SPOtS, YEllOWISH ElYtRA WItH GREYISH DIScAl PAtcHES AND tHE MAlE GENItAlIA, PARtIcUlARlY tHE tEGMEN WHIcH IS SUbPARAllEl FOR NEARlY tWO-tHIRDS OF ItS lENGtH AND tHEREAFtER GRADUAllY NARROWED tOWARDS APEX IN lAtERAl VIEW ( FIG. 18c ) AND tHE PENIS APEX ( FIG. 18E ). IN VIEW OF tHESE DIFFERENcES, It IS tREAtED AS A VAlID SPEcIES HERE AND REMOVED FROM SYNONYMY WItH I. bistigmosa (stat. rev.). GHORPADE (1976) REPORtED It AS FEEDING ON POWDERY MIlDEWS ( Oidium SP., Phyllactinia SP., AND OtHERS) INFEStING Nyctanthes arbor-tristis, MUlbERRY, cAStOR, SUNFlOWER, cHIllIES, Rosa SP., Xanthium strumarium , Dalbergia sissoo, Etc.

Figures

FIGURE 18. Illeis bielawskii Ghorpade: a, b) adult, dorsal View; c–e) male genitalia: c) tegmen, lateral View; d) tegmen, Ventral View; e) penis.