Trichopterygia illustrata et descripta : a monograph of the Trichopterygia. supplement

Abstract

Mr. Matthews unfortunately did not label the specimens he described as types; he only put the same number on all specimen.of the same species. With the exception of the sprees enumerated below, all are to be found in his collection now in my possession.

Breakdown of the Quantum Hall Effects in Hole Systems at High Induced Currents

“…5 The degenerate nature of the valence band means that band mixing is also important. 6 The data from hole systems presented in this paper are in good agreement with the model of Matthews et al 4 and also provide a preliminary measurement of the FQHE energy gap at Landau-level filling factor v gap at v = 1 and v = 3.…”

“…A contact less geometry is therefore desirable for QHE breakdown measurements. Previous contact less experiments have provided information about the breakdown of the integer and fractional quantum Hall effects (FQHE) 3 and a model of breakdown in this contactless configuration has recently been developed by Matthews et al 4 Hole systems have interesting differences to electron systems. A larger effective mass means that the cyclotron energy is smaller in hole systems and Landau-level mixing effects are significantly larger.…”

A revision of Cissidium Motschulsky (Coleoptera: Ptiliidae) with seventy seven new species

“…Because of his illness, these boxes were passed to me to work on and return. Many of the specimens European Journal of Taxonomy 622: 1-188 (2020) were present either as singletons or in small groups with manuscript names attached. These names have been retained in the present work where possible and are identified as 'Johnson ms name'.…”

“…In the same paper publishing C. basale, Motschulsky included C. rufulum Motschulsky, 1855 also from Panama (renamed C. rufescens in Motschulsky 1868). Neither species was included by Matthews (1872) because he had not seen any specimens, although he did include Camptodium Motschulsky, 1869, type species C. adustipenne Motschulsky, 1869, from Japan, later synonymised with Cissidium by Johnson who noted that Camptodium was a mis-spelling of Camplodium (I think this assumption was incorrect, the letter 't' in the original type face has a very faint cross piece and is clearly shorter in height than the letter 'l') (Johnson 1982). In the same paper, Johnson also synonymised the genus with Dimorphella Matthews, 1889, type species D. reitteri, Matthews, 1889, from Brazil, andwith Epibaptus Deane, 1931, type species E. scutellaris Deane, 1931 from Australia, added C. foveolatum Johnson, 1982 andC.…”

“…The length measurement of the pronotum is open to a certain amount of interpretation because of its tendency to be tilted forwards when carded. The antennomere European Journal of Taxonomy 622: 1-188 (2020) H is missing hereand metaventral measurements were taken using the SEM camera. Because of the density of setae on the terminal antennomere XI the exact length is often difficult to see in which case a judgement has been made by eye.…”