Briefe uber Blattminierer / Letters on Leaf Miners by E.M. Hering

By E.M. Hering

My organization with Prof. Hering extends over the last seventeen years, and through this era i've got visited him at his domestic on greater than 40 events and obtained over three hundred letters from him. those letters comprise a lot special entomological details. additionally they throw substantial mild on Prof. Hering's character and personality and the historical past opposed to which he labored. The booklet of not less than a part of those letters as a last tribute to Prof. Hering has been in my brain for a few years. This unique inspiration has now been a bit prolonged via the inclusion of a host ofletters to Dr. H. Buhr, Dr. J. Klimesch, Dr. F. Groschke and G. C. D. Griffiths, all of whom shared Prof. Hering's curiosity in leaf-miners. even if Dr. Buhr is basically a botanist, with Hering's encour­ agement he has taken an energetic curiosity in leaf-miners all through his profession and his amazing gathering turns into obvious from Hering's letters to him. for a few years Prof. Hering has written among and 3 thousand letters every year. It has evidently been attainable to think about the following just a very small share of those. From the various longer letters simply remoted paragraphs were integrated. Use of italics within the letters used to be now not totally constant and has been reproduced as utilized by Prof. Hering. number of the letters has been established totally on their entomolo­ gical curiosity yet a number of passages have additionally been incorporated illustra­ ting in a roundabout way Hering's own traits.

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Extra info for Briefe uber Blattminierer / Letters on Leaf Miners

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In Mittelamerika weiB ich keinen von meinen Leuten, der das libernehmen konnte. Du bist genligend eingeweiht um zu wissen, daB die Bestimmungen der Gramineen nur immer Annaherungswerte geben konnen, soweit kein Pupar vorliegt. Vieles lieBe sich freilich noch tun, wenn man evtl. vorhandene Larvenreste in den Blattern untersuchen wollte. Aber eine Larvenuntersuchung kostet gewohnlich 2 Abende, und deshalb kann man das nur in Ausnahmefallen tun, wo es besonders wichtig ist. Manche der Bestimmungen werden auch noch eine Korrektur erfahren durch bereits gegebene oder noch zu gebende Zuchtresultate.

Ob die Art aus Euphrasia nicht auch damit identisch sein wird, kann nur die Zucht erweisen, so dass wir da noch abwarten miissen. Von Phytomyza pedicularis nov. erhielt ich nachtraglich noch ausreichend Imagines, die aIle untereinander ohne Variabilitat iibereinstimmen, so dass die ganze Pedicularis-Frage jetzt gekHirt ist und Du Dich nicht weiter um diese Arten zu kiimmern brauchst. Dagegen ist aus den wenigen Puparien aus Cirsium (Liriomyza) bisher nichts ausgekommen, so dass ich Dich bitte, Deine weitere Aufmerksamkeit dieser interessanten Art zu widmen.

Berlin, den I6. fuN I94S Gestern erschien aus Trollius dne Fliege7 die auBerlich ganz ahnlich Ph. trollii Hering ist; ich werde sie morgen genauer untersuchen, kann mir aber nicht denken, daB zwei Arten von gleichem Substrat so ahnlich sein sollen, ohne identisch zu sein. Ph. mimica m. verwandelt sich aber stets in einer Puppenwiege im Blatt, wobei die vorderen Stigmatophoren die Blattepidermis durchbrechen; Ph. trollii verpuppt sich dagegen auBerhalb des Blattes. Die Gange sind ganz verschieden von denen yom mimica-Typus, meist viel mehr gestreckt.

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