^ 04 — 



3. „Woi'thy of Notice here also are metameric constrictions 

 of the wall of the intestine. These are very distinctly marked ami 

 seem to correspond to tlie segmentation of the larva, at least each 

 portion which is constricted otf corresponds to one of the leg-like 

 l)rotuberances upon the ventral surface of the body. This con- 

 dition is quite peculiar and does not seem to occur in any other 

 insect larvae, at least to such an extreme degree." p. 260. 



4. Die Angabe einer Vagina in weiblichen Larven : „The pre- 

 sence of the rudiment of an oviduct and vagina is rather remark- 

 able and does not in the least foreshadow the peculiar manner 

 in which the reproductive system will continue its further deve- 

 lopment." p. 250, Taf. XXIII. Fig. 22. 



Die „Abteilungen", in welche nach Xassonov das Ovar zer- 

 fällt (pag. 87, Taf. II. (IV), Fig. 25 A) nennt Brues „primitive 

 6ggs-' (p. 250, Taf. XXll. Fig. 1), Die „Chorionbildenden Zellen- 

 Nassonovs (p. 87 Anm., Taf. II. (IV.), Fig. 25 0) bezeichnet Brues 

 als „follicular covering" (p. 250, Taf. XXII. Fig. 1). 



5. Eine von Nassonov etwas abweichende Darstellung der 

 larvalen Hoden : „The testes are well developed in the smallest 

 male larvae which we have obtained ... In cross sections through 

 this portion of the animal from two to six testicular follicles 

 appear on each side of the alimentary tract. The tubules are 

 separated and number four on each side. Each separate follicle 

 is enclosed in a very delicate membrane, but no common scrotal 

 membrane is present.- (p. 262.) Nassonov bildet diese „scrotal 

 membrane- ab: Taf. II. (IV.), Fig. 22. 



Brues's „follicles- entsprechen Nassonovs „Abteilungen- 

 (p. 86) und „Samenkugeln- (p. 88|. Brues scheint aber mit den 

 „follicles" schlauchförmige Bildungen zu beschreiben, während 

 Nas-onov ähnlich wie von der weiV)lichen auch von der männ- 

 lichen Keimdrüse sagt, „daß die ganze Zellenmasse in rundliche 

 Abteilangen zerfällt." p. 86, Taf. II. (IV), Fig. 16 p. Vergl. die- 

 selbe Taf. Fig. 8—10. 



Brues Angaben gelten für Xenos peckii Kirby (== Acroschisniu^ 

 wheeleri Pierce, Monogr. 1909, p. 129). Brauers kurze Mitteilung 

 betrifft anscheinend Xenos vesparum Rossi. 



