BAGN ALL'S THYSANOPTERA 85 



not visible in the holotype of ampliceps but both monstrosus and laticeps have the 

 praepectus and mesopraesternum well developed. Bagnall placed monstrosus in a 

 separate genus on account of the extreme elevation of the dorsal surface of the head. 

 This appears to be unnecessary in view of the variation within the genus. There 

 are two pairs of long postocular setae and the concentric lines of sculpture on the 

 anterior half of the metanotum are similar in ampliceps and monstrosus. 



Docessissophothrips ampliceps Bagnall 



Docessissophothrips ampliceps Bagnall, igo8c ; 202-203. 



The pelta of the unique male is not clear but is apparently triangular. Both this 

 sclerite and the metanotum are reticulate. The median pair of metanotal setae are 

 small and lie just posterior to the concentric reticulations, which are at the anterior 

 end of the sclerite. The fore wings have about thirty accessory cilia and there are 

 two pairs of wing retaining setae on each abdominal tergite. 



Holotype $. [Mexico ?] Orizaba, xii.1887 {H.S. & F.D.G.). 

 Docessissophothrips frontalis Bagnall 



Docessissophothrips frontalis Bagnall, 1914b : 26-27. 



The unique holotype of frontalis is not in the Bagnall Collection. The specimen 

 was collected in Japan by J. E. A. Lewis, and Bagnall gives a figure of the head 

 viewed laterally. 



Docessissophothrips laticeps Bagnall 



Docessissophothrips laticeps Bagnall, 1915a : 322-323. 



Although reduced ocelli are present, the female holotype is apparently apterous. 

 The praepectus and mesopraesternum are well developed, the pelta very broad 

 basally, and both the pelta and metanotum are devoid of sculpture. The postocellar 

 setae are long, almost reaching the base of antennal II. There are two sense cones 

 on antennal III and three on IV. 



Holotype $. Sarawak : Mt. Matang, under bark with termites, 28.L1914 

 (G. E. Bryant). 



Docessissophothrips longiceps Bagnall 



Docessissophothrips longiceps Bagnall, 1916b : 407-408. 



The pronotum of this species is emarginate anteriorly and as in monstrosus, lacks 

 anteromarginal setae. The fore tarsus is unarmed, the metanotum reticulate, and 

 the pelta divided into a large quadrate median sclerite and a pair of small lateral 

 plates. The surface of the tube is reticulate in contrast to the other members of the 

 genus. The ocelli are very reduced but there is a pair of stout interocellar setae. 



Holotype $. Madeira : (Wollaston). BM 1858 : 21. 



