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CRICK et a l. l 993). Unfortunate ly, there is a lack of similar studies on old nauseum collections despite the faci that collectors provide good data and make useful comments for future analysis. In this paper, long -terna data analysis was only madepos sibi e by the use of museum data. The tim ing of laying and mean clutch si Ze of the Red backed Shrike in other areas of Poland has not changed UZNIAK l99l. MATYIASIA K l 995. DIEI L l 998). However, DIEHI l 998), reponed that mean clutch si Ze increased belweenl 964-l990 in conditions of increas ing temperatures. The increase resulted main lys rona a growth in the proportion of 6 and J egg clutches. In contrast. MATYJASIA K l99 β) did not show similar long term irentis in reproductive parameters hased Ondata frona the Pol isti Nest Record Scheme. LUDER l 986) analysed data frona nest record card s in SwitZerland and reponed mean clutch si Ze decreases frona β. 32 tob. 06 eggs during the period l90l-l9JJ. Howe ver in the fame period there were decreases in the frequency of May clutches. Moreover the mean arri Val date ofRed backed Shrike in Switrerland had changeli, since the hirds stat ted to arrive later. This was in contrast to other Europe an studies on different hirci species
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on the en Viron ment, Obsei Ved as the in crease of temperature, Stai ted to Occur Onlyhom the l980s OnwardS. The data presented here differed frona the aliove resulis. In the two compared study periods there were no significant differe iaces in laying date or in clutch si Zedespite smali changes in temperature in May. Bet ween l905-l 925 the tempera tures were relati Vely warmer compared to recent years TREPINSKA l99J). The in fluence of this appears to he minimal. Although the stud y of life-history traiis is imponant, they are not the ola lys actors that should be considereil. For ex ample, frona the conservationi si potnt ofview, information on breed ing densi ty and data on the number of sledglings perpair are imponant but hinfortunately nei ther are avat labie si Om museum specimens.
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The genus Poecilosomella DUDA. l 920 consists of heautimi limosintne species of Sphaeroceridae with pictured body and wings. Some species are abundant in nature, and it is set dona that a large collection of Oriental Dies cloes not contain
representati Ves of One or more specie S.
The problem with Poecilosomelia is that only a few of the known species arere adi ly recognis able by body characteristic s at low 40 to 60x) magnification. The majori ty of species forna groups of very closely related species, the reli able identification of whicli is possibi e based on the stud y of male genital patris only sat abo ut 300κ or higher magnification). The differentiating characters of the genus were summari sed by PAPP l 990) in his review of the Afrotropical species, to whicli notmuch needs to be adde l. The long tread- like process of the disti phallus, however is a Strong Synapomorphy this proces s is stiori in sonae species biit one must becares ut with such a statement, as of coui se . this ili in proces S may break during genitalia preparation). One observation hOweVer, nee is correction: the postgonitesare long in a number of species. It must be stres sed that the male subepandri alscieri te 'subanal plate ) carries imponant differentiating charactei s. I here namethe scieroti Zed structures above the phallobase and ventral to the cerci connecting
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Ventral arnas of epandrium) as subepandriat scierite, although its origin may be
large number of specimens were identis ted hut only one new species was adde l. Qui te by chance, I prepared the male genitalia of severat individuals of the 'common est Oriental species , P. PunctiPennis WIEDEM ANN). which were true PunctipenniS specimens. Consequently Ι overtooked iis closely related sis ter- species, P. cimini v which was disco vered by Dr T. HAYASHI years ago, butwhich was described most recent ly HAYASHI 2002).
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All the important Datures, including armature of m id tibia DE EMING l 969 fig. β) and tho se of the male post abdomen and genitalia, i. e. the mediat projectionos sternite β 9 6. iobes of sui stylus DEEMING l 969 fig. l8) seem to fit the description of the holotype male. I have previ ous ly redescribed this species PAPPl 99l a l06). Fornaei ly known frona Nepai scf. also ROH CE K et a l. 200 l), so iis occurre iace in Taiwan significantly widens iis known distribution.
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Some of the most sui prising findings were with the species of this group. Hi therio there was only one species known with the following conspicuous combi nation os features: arista with very long cilia, costat halios rather long second costat section much shorter than thii d. I disco vered sive species in this group. two of them
cies is frona the Philippines and the fifth one was collected more recently frona Tai-wan. The sive species cata be distinguished main ly by the male genitalia but onec an make two subgroups of the P. Drniam DE MEIJERE) and P. Dorboroides WALKER). eas ity recogni sed by the characteristi cs of the setae on m id tibia. These findings underitne again the risk of weakly based proposais tosynonymi Zations os species. DeciiDXomella Dorhoroides WALKER. l860)
The original description says: 'Length of the body l l l2 line: of the wings 3
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Originalty two Syntypes were known si Om JaVa, Semarang. It waS propOSedas Synonymous erroneo us ly on two different occasions for two different species
Dr. HERMAN DE JONG Amsterclam) sent me the following information 'DEMEIIERE l9l8: Tijdschrist voor Ento mologie 60 323) regat ded his ornata as a Vn-riety of Venalicia OSTEN SACKEN. According to DE MEIJERE. both should differ in the extent of the darii coloration of the wing membrane. The single re maining type specimen of ornata was placed under ' Venalicia' in Our collection. It has the legs folded and closely appressed to the hody. Never-theles s it is clear that the right t2 carries a strong antero) ventral bri sile nearmidlength. I could not find a ventro- apical bri sile on ei ther t2, although the vie w of both legs is quite obscured. V