" Tr'irhi'iitvnjijhi III ii-^t nil<i." 5 



These Dr. Dolivu tevins fuur new facts ; lie does not observe 

 that my assertion referred to lifediistory and anatomy, and 

 appears also to forget that two of these four species had been 

 previously described by Dr. Erichsou, to w^hom according to the 

 strict law of priority T might therefore have assigned them. 

 But knowing the unhandsome manner in which Dr. Erichson 

 liad abused the confidence of (xillmeister and had unkindly 

 anticipated his work, I preferred t<j attach the name of " GIU- 

 meister" to the species in (question. If I committed a faidt, it 

 arose frona my desire to do justice to ( iilhiu'lstei'. 



When to the confusion of nomenclature pervading the whole 

 Monograph is added the great amount of erroneous anatomy, 

 the conspicuous Labial Palpi utterly ignored, a mutilated portion 

 of the Stipes hguivd as the true Mandible, and false deliiipatioiis 

 given of the Mentum and adjacent organs of the lower paii of 

 the mouth; and forms so totally diverse as the species of PfliK'lhi 

 and Ptenidiiirn com}»rehended under one and the same generic 

 appellation; I think that I was fully justified in saying that such 

 work left the Trichopterygia in a state oi confusion far worse 

 than that in which it found them. 



In the case of (lol. Motschulsky, my first inqiressions 

 experienced a' total revulsion. 1 commenced Avorlc a disciple of 

 the common belief in his universal inaccuracy ; I had imbilted 

 the idea that his species were mere varieties, separated on unten- 

 able characters. ( h-adually step by sti>p as my own knowledge of 

 these insects incnnised, so pari jiassu did my conviction that ( "ol. 

 Motschulsky was right in his views. To assist in arriving at 

 the truth, I determined to (communicate at once with him and 

 obtain authentic types of his species. 'J'hese in large inimbers 

 he immediately forwarded to me with the saiiie ready kindness 

 as he had formerly sliowii to ( Jillincistcr, Imt witli a very differ- 

 ent result. I found that though his (h.iScri])tions were very 

 obscure, his types were in nu^st cases sutticieiit to convince any 

 one of their specific valuf. IuiIihmI if an experienced I'jitoniolo- 

 gist has for many years turned liis attention to the study of any 

 special class of insects, lie may reasonably be supi)Osed to know 

 more of that (dass than otliers who hav(^ coni])aratively neglected 

 them. I soon found this to lie ti'ue of Col. MotschulskA', and 



