40 L. A. MOUND 



Moulton recognized three forms of tritici in addition to the nominal species. 

 These forms were distinguished on colour alone, and no morphological differences are 

 apparent between the varicorne holotype and typical specimens of tritici. 



Holotype $ of varicorne. Canada : Saskatchewan, Semans, on Petalostemon 

 purpureum, 4.viii.i9i7 (A. E. Cameron). 



GLAUCOTHRIPS Karny stat. n. 



Glaucothrips Karny, 1921 : 240, as subgenus of Pseudothrips Bagnall. Type-species Pseudo- 

 thrips glaucus Bagnall, by monotypy (not stated but indicated by tautonymy). 



Karny failed to include any species in his new subgenus Glaucothrips, but in view 

 of the fact that he derived the name from Bagnall's species glaucus, this failure is 

 regarded as an unfortunate printer's error. Glaucothrips differs from Pseudothrips in 

 having eight- rather than nine-segmented antennae, and the median setae on 

 tergites III to VI are not closer together than their length. Pseudanaphothrips is 

 rather similar but has both pairs of metanotal setae at the anterior margin, and the 

 median tergal setae are very short. 



Glaucothrips glaucus (Bagnall) stat. n. 

 (Text-figs. 17 & 18) 



Pseudothrips glaucus Bagnall, 1914b : 23. 



Pseudothrips (Glaucothrips) glaucus (Bagnall) ; Karny, 1921 : 240. [By inference]. 



Pseudanaphothrips turneri Moulton, 1936 : 498-499. Syn. n. 



The holotype of glaucus consists only of the thorax and abdomen. For the 

 following redescription a series of females from South Africa, Cape Province, 1966, 

 on plum trees has been used, as well as the holotype of turneri. 



Female : Length 8oo-iooo(j.. Colour brown, pterothorax orange internally ; legs and 

 antennals I and III paler ; wings shaded. Head rather wider than long (140^ X ioofj.) ; 

 postocular region with about eight transverse lines ; three pairs of ocellar setae present, pair 

 III on anterolateral margins of triangle, a little shorter than one side of triangle ; five pairs of 

 postocular setae, pair II from midline close to posterior ocelli. Antennae eight-segmented, 

 lengths of segments in u. ; 12 ; 25 ; 28 ; 28 ; 25 ; 33 ; 8 ; 10. Pronotal disc transversely 

 striate, with about 15 pairs of setae 8\x long ; one pair of postero-angular setae 25(1. ; four pairs 

 of posteromarginals 8-i2jx long. Metanotum reticulate, median setae not at anterior margin. 

 Fore wings 700^ ; first vein with 15-22 setae (4 + 6 + 9), second vein with 13-15 regularly 

 spaced setae. Abdominal tergites with transverse reticulations medially ; median pair of 

 pores about three times their own diameters from tergal hind margin ; median setae on VI to 

 VIII at least one third as long as the tergites ; comb on VIII long and regular, microtrichia with 

 stout bases. Sternites with three or four pairs of posteromarginal setae. 



Holotype $. South Africa : Cape Town, Sebaea (R. Marloth). 



Holotype $ of turneri. South Africa : Mossel Bay, vi.1930 {R. E. Turner). 



