1891.] 123 



broad, rounded at the apex, and is not visible beyond the front of 

 the head (fig. 2). 



In the S. European M. sulcicauda, tlie outer lobe is nearly as long 

 as it is in M. aculeata, the insect in other respects closely resembling 

 M. fasciata. In M. hipunctata, Germ., it is a little shorter. In M. 

 12-punctata, Rossi, M. maculosa, Naez., M. hisignaia, Eedt., and M. 

 inllosa, Schr., so far as can be ascertained without dissection, the 

 outer lobe is short, though in one or two of them, M. 12-puncfata, &c., 

 the tips are visible beyond the front of the head, and in this respect 

 these last-mentioned species are intermediate between M. lipimctata, 

 and M. fasciata. This lobe does not vary in length according to 

 the sexes, it being similar in both. Jacquelin-Duval's figure (447, lis) 

 no doubt represents the maxilla of M. aculeata, or of M. sulcicauda. 

 Mulsant, in his voluminous work on the " Longi pedes," omits all 

 mention of these characters ; and Emery, " Essai Monographique 

 sur les Mordellides," p. 4, nota 1, doubts that any species of the 

 genus Mordella has a lobe like that figured by Jacquelin-Duval : " La 

 fig. 447, bis, de Jacquelin-Duval, qui represente la maehoire de 

 la Mordella fasciata, est certainemeut inexacte. line mdclioire par- 

 eille n^existe ni dans la M. fasciata, ni dans aucune autre Mordelle que 

 faie disseque'e " (the italics are mine). Tet Emery (op. cit., p. 78) 

 notices a variable character of this kind in Mordellisfena, where it is 

 not nearly so easily seen, owing to the smaller size of the species. 



In the very long and linear outer lobe of the maxilla, J/, aculeata 

 and M. sulcicauda approach the genera, Hhipiphorus and NemognatJia, 

 in which this character is still more developed. I have not yet 

 observed a linear form of maxilla amongst any of the large number of 

 tropical American Mordellce I have examined, all these approaching 

 M. fasciata in this respect. 



11, Caldervale Road, Claphara, S.W. : 

 3Iarch 12th, 1891. 



MALE AND WORKER CHARACTERS COMBINED IN THE SAME 

 INDIVIDUAL OF STENAMMA WESTWOODI. 



BY E. C. L. PERKINS. 



Last October, while walking between Dartmouth and Stoke- 



Fleming, I picked 

 up a small ant, 

 which was moving 

 in a very uncertain 

 and erratic man- 



^_^;^:z:3:==fflniQXc> 



