338 



on tliem poiiit in all directions. The other verrucae are mostly 

 elliptical with a long horizontal axis. The setae are arranged more 

 or less in one line, the middle seta is mostly the longest and the 

 others get symmetrically smaller in regard to this one. The longest 

 setae are born by the v. suprastigmaJes. The sètae are not plumed. 



Prothordx. There is a small /•. dorsalis^ a very large v. suh- 

 (lorsnlis which is eonnected with the corresponding verruca of the 

 other side by a black eoloured prothoracic shield. By this the 

 small i\ (lorsales get united. Moreover, there is a rather large 

 i\ suprdstigniaUs which projects a good deal, a v. infrasfiginalis, 

 which has an offshoot pointing towards the dorsnm, which per- 

 haps corresponds to the missing r. prosfiginal/s and a r. hasalis 

 just over the beginning of the leg. 



Mesofhorax and iiietathontx. There occur: /-. dorsalis^ v. dorso- 

 laferalis, a little larger than the v. dorsalis, r. snprastigtnalif^^ 

 V. infrastigmaUs and a small r. basaJ/'s. The setae on these seg- 

 ments are shorter than thosc on tlie other. One niight be inclined 

 to think that v. dorsoIatfraJis owed its origin to the shifting of 

 V. sid)dorsalis. This verruca on the mesothorax and metathorax 

 is placed in front of v. dorsalis and on all the abdominal segments 

 V. subdorsalis lies behind it. Besides in other families the same 

 arrangement occiirs as in this one, but then there is also a ver- 

 ruca or seta in the place where v. snbdo)-salis lies. For these 

 two reasons I think that the name of /•. dorsoJateralis deserves 

 the preference. (See Chapter IV). 



Abdomen 1, 2, 3, 4. There are a small /•. dorsaHfi^ a large 

 V. subdorml/^ which is prolonged in a triangle towards the oral 

 side, beneath the v. dorsalis a v. snj)rasf/giiialis which has the 

 longest setae, a i\ infrastigmaUs and a small c. basalis. 

 ScgiH. 5. V. dorsalis is very small in some individuals and totally 

 absent in others, for the rest as on the abdomen 1. 



„ (>. r. dorsalis is very small and generally bears only one 

 short seta, for the rest^=l. 



„ 7 = 1. In some individuals r. dorsalis has been partly 

 split into separate setae. 



