298 SELECTED NOTES FROM 



In the sub-family GAMASiNiE there are no excavations for the 

 legs, and the ventral plate is not entirely united with the dorsal, at 

 least in front, where a passage is left for the capitulum or tube 

 containing the trophi. The femurs of the first pair of legs are 

 wide apart, and are not thickened, as in the preceding sub-family. 



The genus Lalaps is distinguished from Gamasus in that in the 

 former the second pair of legs are alike in both sexes, and rarely 

 bearing knobs or excrescences ; whilst in the latter the second pair 

 of legs are thickened in the male, and usually provided with 

 knobs and protuberances. 



*TJropoda formicarise (Fig. i) was, I believe, first discovered by 

 Sir John Lubbock in his nests of Lasiiis flavus, and was described 

 for him by Mr. Michael in Ants, Bees, and Wasps, but the species 

 has never been figured because the specimens it was described 

 from were mounted in balsam, and he has been waiting until he 

 could find some fresh examples. This we have at last done in the 

 nests of the same species of ants {L. flavus), during a visit to 

 Forth Gwarra in Cornwall in October, 1892. They were met with 

 in some numbers on the upturned stones that covered the nests of 

 this ant, or rather upon some of them. It is a fine species, and 

 somewhat singular in having a considerable depression in the 

 upper hinder half of the abdomen, traversed by several transverse, 

 thickened, chitinous ridges. A massive chitinous plate projects 

 between the second and third pairs of legs on either side 

 apparently for their protection. 



*Uropoda coccinea (Fig. 3). — This species was found by Mr. 

 Michael in the summer of the same year in the nests of Campo- 

 notus herculeaneus, near Innsbruck, Tyrol, in considerable numbers, 

 and was subsequently described and figured by him in a paper 



* Since the above slides were circulated, a paper has been published by Mr. 

 Michael {Notes on the Uropodina, Jotirnal of the R.M.S. for June, 1894), in 

 which he gives a list of the British species, together v^^ith a revision of the clas- 

 sification and nomenclature of the same. The species marked with an asterisk 

 have their generic name altered to Glyphopsis, which differs from the genus 

 Uropoda in having the body irregular in form, the dorsum not regularly vaulted 

 or arched, but sculptured. 



The fine species referred to above as having been left with Mr. Michael is 

 also described and figured by him in the same No. as Glyphopsis Bostocki. 



