Mr. E. S. Bagnall on neio Thysanoptera. 



393 



XXXV 1 1. — Brief Descriptions of neio Thysanoptera. — XII. 

 By Richard S. Bagnall, F.R.S.'E., F.L.S. 



This is continued from Ann. & Mag. Nat. Hist. ser. 9, 

 vol. vii. pp. 355-3G8, and the following species are de- 

 scribed : — 



Physothrips minor, sp. n. 



„ andretcsi, sp. n. 



3fe(/athn'ps Jwnoris, sp. n. 

 Baciridothrips serraticornis, sp. u. 



Elaphvofhri'ps antennalis, sp. n. 

 Dicaiothrips crassicejjs, sp. u. 

 ,, brevtceps, sp. n. 



Suborder Terebrantia. 



Physothrips minor, sp. n. 



$ . — Length about 1"0 min. 



Belonging to the P. usitatus grriup. 



Colour diirk biown; tore-tibice pale yellowish^ lightly shaded 

 ■with grey-brown bnsuily, intermediate and bind-tibige at tips 

 and all larsi pale yellow; third antennal joint pale yellow, 

 for the most part shaded with grey. Fore-wing daik grey- 

 brown, excepting basal fifth or thereabouts, where it is light. 



P. antennatus type. — Eyes coarsely facetted, pilose ; 

 ocelli large, interocellar setae situated between posteiior 

 ocelli, long and stout. Maxillary palpi long and slender. 



Antennpe as in antennalus, Bagn., but joints 3 and 4 not so 

 strongly produced distally ; 4 longer than any other joint ; 

 3 ap|)arently short on account of being very broad near 

 middle ; 5 with a very short stem-like constriction ; relative 

 lengths of 3 to 8 approximately 39 (with stem) : 46 : 33 : 41 : 

 8 : 13. Forked trichomes on 3 and 4 stout. 



Upper vein with a series of setae running to the distal third 

 and two at tip ; those of posterior vein long, commencing at 

 the second setee of tlie uj)per vein. 



Abdominal segments 8-10 obconical ; terminal setse long 

 and strong, those on 9 approximately 1*4 times the length of 

 the segment. Eighth tergite posteriorly without fringe. 



This species comes near to P. antennatus, Bagn., and 

 P. antennalis, Karny, and is distinguished from both Ijy the 

 small size and the relatively shorter joint 4 of the antenute. 



Type. In Coll. Bagnall. 



