196 ENTOMOLOGICAL NEWS. [October, 



flavipes containing but a very few oi Formica obscuripes. Whether 

 the Termites had become hostile to the ants, or whether they be- 

 come in a crowded condition with the abundance of both species 

 and the ants seeking new homes is a problem yet to solve. The 

 Termites are a very hardy insect, and remain active in their nests 

 late in the Fall, when the ants are wholly inactive. They also 

 remain in their nests unprotected through the Winter in a torpid 

 condition, as do many of our ants. I have not met with but a 

 very small amount of literature treating upon ants and Termites 

 being associated together. The only literature thus far is 

 ("Nature" vol. xix, p. 4, 1878) by Henry O. Forbes — "Ter- 

 mites kept in Captivity by Ants. ' ' He speaks of Termes lucifugus 

 so kept by Formica niger (now called Lasius niger). The ob- 

 servation was made at Naples, and in " Popular Science Monthly" 

 we find the same account, in substance, by the editor. There 

 are several articles in various books on General Entomology, 

 giving the life-history and descriptions of Termes fiavipes, but 

 the best account with cuts of the different forms are given in 

 Bulletin No. 4, 1896, New Series, U. S. Department of Agricul- 

 ture, Division of Entomology, written by C. L. Marlatt. 



There may be other literature treating upon Termites inhabit- 

 ing ants' nests, but such as I know I give to assist others that 

 may be interested in the subject. This also should apply to all 

 of the other articles I have written on Formica, or that I may 

 write in the future. There is, however, some literature pertain- 

 ing to other genera of Termites in Europe that I have not quoted 

 and can be found in Wasmann's work on Myrmecophilous and 

 Termitophilous Arthropoden, 1894, p. 166. I have met with 

 but few Termitophilous insects with Termes Jlavipes as yet. The 

 only ones found by me are Philotermes pilosus Kraatz, an unde- 

 termined Homaloia sp. and Tachyporus jocosus Say. 



Mouth-parts of Coleoptera. — F. Meinert, in a paper on the buccal 

 apparaUis of insects in the " Oversigt" of the Royal Danish Scientific 

 Society, states that his researches on two forms of genera, Hydrophilus 

 and Dytiscus, belonging to the Coleoptera, and consequently insects with 

 complete metamorphosis, seem to permit me to state that we are here 

 really in the presence of four metameres which develop in such a way 

 that the most posterior metamere with its appendages, that is the labium 

 with the labial palps (the primary palps) disappears during embryonic 

 development to be replaced by the anterior metamere, posterior by de- 

 velopment, with its palps (the secondary palps). 



