248 BRITISH TYBOGLYPHID^. 



men which I have dissected. There are a pair of hairs 

 quite close together inserted at the base of the rostrum, 

 and projecting anteriorly considerably beyond the 

 proximal ends of the first pair of legs ; a second pair, 

 of about equal length, but further apart, between the 

 coxae of the first pair of legs ; a third pair, still further 

 apart and longer, between the coxae of the second pair 

 of legs ; a fourth pair, not quite so long, near the edge 

 of the body, and just behind the insertion of the second 

 pair of legs. A fifth pair, about the same length as 

 the fourth, still nearer the edge of the body, but con- 

 siderably further back, a little anterior to the insetting 

 of the third pair of legs. A sixth pair, longer, on the 

 actual edge a little further back; a seventh pair, 

 shorter, on the actual edge, just behind the constriction 

 of the body. An eighth and a ninth pair, both about 

 the length of the sixth, on the actual lateral margin of 

 the narrow part of the abdomen ; and four pairs on 

 the notogaster, making fifteen pairs. All these hairs 

 are strongly and conspicuous^ pectinated ; the lou_ 

 are those on or near the hind margin, and a pair near 

 the middle of the notogaster. Some of these hairs are 

 longer than the body, often considerably longer in 

 lately emerged specimens where the body is small. The 

 bursa copulatrix does not project very far ; seen under 

 a sufficient amplification it shows a slightly trilobed 

 posterior edge, both above and below.* The legs are 

 of moderate length, the fourth pair passing the hind 

 margin by about half the length of the tarsus. The 

 tarsi of the third and fourth pairs of legs are as long 

 as all the other joints put together ; but still are far 

 shorter than the corresponding joints in G. domesti 

 The tarsi of all thr !<-</* arc iliicldij rlotlcd u:itli ''.i-ircnicly 

 *h<n't liiif ln'iirx, which are only visible with fairly high 

 powers of the microscope, and cannot usually be seen 

 when the creature is in liquid or in balsam. These 



* Berlese (loc. cit.) calls this organ in this species " the oviduct," 

 which, I suppose, is an oversight ; it is not an oviduct, the egg never 

 enters it. 



