4 Of; 



Length : 1 3-1 7.5 mm. 



Male. I have no specimens, and Miss Ricardo described the 

 male as follows : 



The males are more reddish brown in colouring than the females. 

 Eyes with the large facets occupying two-thirds of the surface, about 

 reaching to the base of the frontal triangle, next the subcallus, and 

 reaching the vertex. Palpi yellow with yellow and brown hairs. Beard 

 and hairs on face yellow, some brown ones on the cheeks. Abdomen 

 reddish brown on the first three segments, then blackish, the median 

 yellow haired stripe narrower than in the female ; underside reddish 

 yellow, a little darker at apex. Legs more wholly reddish yellow. 

 Wings tinged yellowish, no appendix is present. 



This species varies a little in the amount of yellowish brown or* 

 dull orange colouring on the first two segments of the abdomen, this 

 colouring extending slightly below to the third segment in some 

 specimens from Kanshirei and Horisha in Formosa, in the colouring of 

 the frontal stripe, the thorax, and the median stripe on the abdomen 

 from deep greyish yellow or yellowish brown to whitish grey, and the 

 amount of the black pubescence on the legs especially on the tibiae ; 

 a female from Horisha (May 10th, 19 1 3) has rather short and thick- 

 antennae which have much broader (about one and a half times as 

 long as it is broadest) basal annulation of the third joint, and also have 

 a thick and short style-like portion with a short bluntly pointed apical 

 annulation and with the remaining ones apparently transverse, and this 

 female has a broad parallel-sided ashy grey frontal stripe containing a 

 shining black broad and comparatively short callus, and its thorax and 

 abdominal stripes are ashy grey, as well as its palpi are very slender, 

 almost the same width throughout, with a rounded tip. 



T. fulvimedius appears to be a common species in the mountainous 

 districts of the lower half of Formosa, as I have records from Horisha 

 (April 10th to May 25th), Kanshirei (April), Kosempo (May), Sokutsu 

 (June), Fuhosho (May), Mansu (May), and Toyenmongai (May), but it 



