1892.] of the Coleoptera of South Africa. 61 



transversely ; elytra oblongo-ovate, iKit broader than the pro thorax at 

 the base, those of the male broadening slightly past the middle, and 

 those of the female much more ampliated, always convex, aculeated 

 behind, with the sature raised and produced at the apex in two sharp 

 spines, nearly always longer in the male ; legs very long and slender, 

 tarsi and tibise grooved in the upper part, the three basal joints of the 

 fore tarsi of the male dilated and ciliated underneath. 



De Chaudoir has included in the genus Dromica, Dejean, the 

 Myrmecoptera of Germar, and Gosmema of Bolieman. There is no 

 distinctive generic character between the three, except the dissimi- 

 larity in shape of the antennge, and also the general facies. 



Even then, apart from the general facies there is a strong connect- 

 ing link between the Myrmecoptera (as I understand them) and the 

 Dromica, in D. Clathrata with thickened antennae, and D, pseudo- 

 clathrata ; in the last-named species these organs are as much sub- 

 foliated externally as in any other Myrmecoptera. 



1 propose, however, to retain the three genera and to include in : 



Myrmecoptera, All the species with thickened antenna3, and long, nar- 

 row prothorax plicated transversely : type M. Ber- 

 tolonii, 



Dromica. A. Species with thickened antennae and quadrate pro- 



thorax with two protuberances on the disk : type D. 

 pseudoclathrata. 

 B. Semi-filiform antennas and quadrate prothorax with 

 two protuberances on the disk. D. tuberculata, 



O. Antennae very filiform. 



Gosmema. Bodies very slender, and prothorax sub-cylindrical, 



impressed transversely in front and behind, but 

 without any protuberances on the disk, the two sides 

 of which are only very slightly raised. (7. coarctata. 



The Cicindelidse included in these three genera are wingless insects, 

 extremely agile, which, in spite of their livery, adapt themselves won- 

 derfully well to their surroundings. From all accounts they do not 

 seem to be as gregarious as Gicindela, and are occasionally met with in 

 open glades, stubble or paths ; they run with great rapidity, and are 

 captured with difiiculty. 



