56 INTRODUCTORY REMARKS. 



NOMADA. Rostrum 1. SlphuncuJo. 



2. Valvishxms sub apice pal- 

 pigeris. 



This character seems designed for those insects., 

 which Reaumur has called Proabeilles, and DeGeer 

 Nomads. It is by far the most imperfect and 

 faulty of the three ; for the flat short tongue of 

 these scarcely merits the name of sip}mnculus(i), 

 the interior palpi are passed over without notice, 

 and that part which really answers to the laminae 

 in his other genera (k), is here designated by the 

 term valva. In this genus the valvuL-e are usually, 

 but not invariably, " sub apice palpigera." For 

 want of due examination of the proboscis, he has 

 inserted into this genus, under the name of No- 

 mada riificornis, a genuine Apis. 



GeofFroy follows Scopoli, he distinguishes his 

 Apis by the following characters : 



APIS. AntenrKS fracta5 articulo primo longiore. 



Os maxillosum lingua membranacea inflexa. 



Aculeus ani simplex subulatus. 



Abdomen petiolo brevissimo thoraci con- 



nexum. 

 Ocelli tres. 

 Corpus villosum. 



These characters are the same, word for word, as 

 he has assigned to the preceding genus (Fespa), 

 with the sole exception of " Corpus villosum" m-t 



(i) Tab. 2. **. a. fig. 1. c. (k) Ibid. lb. & fig. 3. 



steaci 



