BAGNALL'S THYSANOPTERA 23 



Aptinothrips rufus (Gmelin) 



Thrips mfa Gmelin, 1790 : 2224. 

 Uzeliella Inbbocki Bagnall, 1908a : 5-6. 



Bagnall described his species from a single female collected on sea-weed at 

 Whitley Bay, Northumberland, x.1906. 



Asprothrips indicus (Bagnall) comb. nov. 

 (Text-figs. 9 & 10) 



Dendrothrips indicus Bagnall, 1919 : 261. 



Although described as being ' very near to Dendrothrips sexmacitlatus ', the species 

 indicus must be removed from Dendrothrips on account of the wing structure and 

 body chaetotaxy. The cilia arise close to the anterior margin of the fore wing, not 

 as in Dendrothrips at some distance from the margin, and moreover they form a 

 continuous row to the wing apex. The wing apex bears two stout setae and the 

 cilia of the hind margin are wavy, not straight. The median setae of the abdominal 

 tergites are not longer than the distance between them, and the marginal setae on 

 the ninth tergite are much shorter than the tenth segment in the female. In these 

 characters indicus resembles antcnnatns Moulton, the type-species of Asprothrips. 

 They differ, however, in the sculpture of the cuticle, and the structure of the hind 

 tarsi. In indicus only the first two pairs of legs have two-segmented tarsi, whereas 

 in antennatus all the tarsi are two-segmented. The following description is based 

 on two females and two males, and these have been compared with four females 

 from the type series of Asprothrips rani Crawford, a junior synonym of antennatus 

 Moulton. 



Female : Brown, all tarsi yellow. Antennal II brown, I and VI to VIII light-brown. III 

 to V yellow. Fore wing pale with second quarter dark brown and a pale brown subapical 

 band, posterior marginal cilia dark. 



Head broad, eyes occupy about two-thirds of head length ; dorsal surface sculptured ; setae 

 minute 30. long ; one pair of ocellar setae on anterolateral sides of ocellar triangle, one pair 

 lateral to first ocellus close to compound eyes ; three pairs of postocular setae, the median pair 

 close to posterior ocelli. Mouth-cone short, maxillary palpi three-segmented. Antennae 

 eight-segmented, II large and globular, III small and constricted at base, V and VI broadly 

 united ; trichomes on III and IV broadly U-shaped. 



Pronotum with transversely anastomosing sculpture, some of the elongate reticulations with 

 internal markings. Setae small, anterior margin with three pairs, posterior margin with four 

 or five pairs about 8(x long, disc with about six pairs about 3(i. long. Metanotum with two pairs 

 of minute setae, internal thoracic skeleton typically Dendrothripid as in Asprothrips rani. 

 Fore and mid tarsi two-segmented, hind tarsi undivided. Setae of fore wing on costa and also 

 first and second veins minute, more slender than the microtrichia of the pigmented areas. 

 Wing apex with two stout setae, posterior fringe wavy. 



Abdominal tergites with a median groove, laterally with strong transverse sculpture. Median 

 paired setae minute, about 5|x, submedian paired setae close to the tergite pore. Tergites two 

 to nine with one pair of small posterior marginal setae ; eighth tergite without a comb. Sternites 

 with three pairs of small marginal setae. 



