80 the entomologist's record. 



West., and ljunghii, West, (possibly =pedestris, Dalm.), and to state 

 that G. sociabilis, Kieff., of which a full description appeared in the 

 January number, is really G. sepsoides, West. Westwood's three 

 species were inadequately described in Loudon's Magazine of Natural 

 History, vi., p. 496, fortunately, however, the types remain in the 

 Oxford Museum. It remained to Dr. Kieffer to render the species 

 of the genus intelligible, but Walker's calm proceeding in sinking 

 Westwood's three insects, structurally quite unlike, to synonyms of 

 the so-called pedestris (really bicolor, Hal. teste Kieff.), is most remark- 

 able. This achievement is to be found in the Ent. Mo. Mat}., iv., 

 p. 412. 



The main characters of the ? s in both Gonatopus and Antaeon, 

 the two principal genera of the Dryininae, lie in the chela?. These 

 chela? or "pincers" ("la pince" of Kieffer) form beautiful objects 

 under the microscope, and, in Gonatopus, there appears to be no great 

 difficulty in identifying the species by them. In the genus Antaeon 

 the immense number of the species makes it very easy for any one 

 attempting to use the tables to lose his way. One of the branches of 

 the chela?, viz., the outer one, appears to be a development of a claw, 

 and to have become twisted to one side, while the inner branch is a 

 development of the fifth tarsal joint ; the empodium forms the apex 

 of the leg when the pincers are closed, but, whether the insect walks on 

 the external chela? or on the empodium with the claws lying folded up 

 backwards along the remaining joints of the tarsi, to some of which 

 the inner branch of the chela? is at times soldered, I am unable to say 

 — see, however, Ent. Mo. Mag., ii., p. 221, from which the former 

 appears to be the case. The chela? may be armed with processes of 

 various kinds ; in some cases the processes are teeth, like the teeth of 

 an ordinary insect's claw, in other cases they are membranous, 

 reminding one somewhat of suckers; they are then called " lamelles "* 

 (plates) ; in other cases they are in the nature of bristles, and, in still 

 other cases, they are simply hairs; hairs and plates often co-exist, in 

 which case I find the hairs very difficult to see. One of the chela?, 

 especially the outer branch, is often unarmed, and the space occupied 

 by the processes varies greatly, and, where the inner chela has a 

 decided bend, the bend at least is usually destitute of processes, which 

 begin again near the tip. 



The earlier writers seem to have paid no attention to the characters 

 derived from the chela?, and the result is that, without types, and most, 

 if not all, of those of Walker, have been destroyed, the names must, in 

 many cases, be abandoned. In fact, the only names in Gonatopus that 

 survive at present for British species, are bicolor, Hal., Curtis (Brit. 

 Ent., pp. 206, 207), and those of Westwood, which I am now restoring. 

 Whether bicolor, Hal., should not be bicolor, Curt., seems a question; 

 the name is not given even as a synonym by Marshall, having been 

 included by Walker as a colour variety of Dicondylus pedestris, 

 and possibly with Haliday's consent ; but it appears to have been 

 published in Curtis's British Insects, and to have been, so far as 

 Haliday was concerned, only a MS. name. 



* "Lamelles" is, I think, used of the "teeth" of a comb. We have, un- 

 fortunately, no suitable English word to distinguish this sense from " dentes," 

 teeth, in the ordinary sense. 



