154 L- A. MOUND 



EOCRANOTHRIPS Bagnall 



Eocranothrips Bagnall, 1926b : 17. Type-species Melanothvips annnlicornis, by monotypy. 



Eocranothrips annulicornis (Bagnall) 

 (Text-figs. 74 & 80) 



Melanothvips [sic] annulicornis Bagnall, 1923a : 36. 



Two pairs of postocular setae are visible, one medially and one laterally, and there is a pair 

 of stout interocellar setae. One pair of postero-angular pronotal setae is elongate, with about 

 four pairs along the hind margin, and there is one pair of well developed anteromarginals. The 

 antennae are much as in Cranothrips but the sensoria on III and IV are not visible. 



Holotype $. In Baltic Amber, IB 186 ; Type slide no. 186. 



RHIPIDOTHRIPOIDES Bagnall 

 Rhipidothripoid.es Bagnall, 1923a : 36. Type-species R. abdominalis, by monotypy. 



Rhipidothripoides abdominalis Bagnall 



(Text-fig. 78) 



Rhipidothripoides abdominalis Bagnall, 1923a : 36. 



This species occupies a position between Melanthrips and Rhipidothrips. Antennal segments 

 VII to IX are connate but the fore wing has well developed cross veins and both longitudinal 

 veins join the ring vein well before the wing apex. There are three pairs of ocellar setae, pair 

 III about 95jjl long arises within the ocellar traingle. The head is retracted into the prothorax 

 and so the postocular setae, if present, are obscured. The pronotal anteromarginal, midlateral, 

 postero-angular and posteromarginal setae are long and fine, about ioofx long, the antero- 

 angulars rather shorter. 



Holotype $. In Baltic Amber, IB 444. 



HETEROTHRIPIDAE 



HEMITHRIPS Bagnall 



Hemithrips Bagnall, 1923a : 37. Type-species H. femoralis, by original designation. 



Bagnall erected this genus as the type-genus of a new family, although that group 

 is now given the status only of a tribe. The antennae show some relationship to the 

 Melanthripini in the Aeolothripidae, but the ovipositor is typically Thripid and the 

 head and pronotum lack major setae. In two of Bagnall's species the venal setae 

 are all small and the wings Anaphothrips-like, but in antiquus the setae are stout. 

 The following four names were given to figures of amber inclusa published by 

 Schlechtendal (1887), parallelicornis, schlechtendali, setosus, and thoracicus. Bagnall 

 did not examine the original material of these forms and their identity and relation- 

 ships remains equivocal 



