INTRODUCTORY REMARKS. 71 



whose exterior palpi are biarticulate (e) ; and ^pis 

 punctata^ luctuosa, &c. are of another family, re- 

 lated to the Nomad.e, with exterior palpi of five 

 articulations {f). The same objections attach to 

 the characters of the mandihuhe as in the former 

 genera. The maxilla or valvula is not connate 

 with the labium or tongue in any species that I 

 have examined, it may sometimes be attached to 

 its base, or the upper side of the tube by mem- 

 brane : in that family which includes jipis violacea, 

 &c, or what 1 call \he false Bombinatrices, its apex, 

 instead of having a membranaceous margin, is 

 entirely corneous. 



EUCERA. Character NatiiraU.s. 



Os palpis, maxillis, linguaque inflexa, 



septemfida. 

 Palpi quatuor, ina:quales, filiformes. 

 Anteriores quinquearticulati, articulo 

 secundo longiori, crassiori, reliquis 

 aequalibus, adiiasrentes flexura? in- 

 terior! maxillas. 

 Posteriores breviores, quadriarticulati, 

 articulis aequalibus, adnati laciniis 

 exterioribus labii. 

 Mandibula cornea, incurva, acuta, eden- 



tula. 

 Maxilla elongata, cornea, comprcssa, in 



(e) Tab. 7. **. c. 1. a. fig. 3. a. Tab. 8. **. c. 2. a. fig. 3. c, 

 (/) Tab. 6. i:*.dL.fig.\. g. 



F 4 medio 



