696 Mr. F. Laing on some 



of ants under a stone, but concludefl tliat tliey were only 

 Monomorium carbonariunij Smith, a determination later con- 

 firmed by Dr. Wheeler. On Baixo, the largest of the\ islands 

 off Porto Santo, I could not find any ants at all. 



The small islets off Porto Santo have long been famous 

 for their snails, but Wollaston did not report from them 

 any peculiar insects. I collected what I could, and was 

 pleased to find some modified forms. On the small Illieo de 

 Nordeste occurs a race of Helops lucifuguSy which I named 

 maritimus^ but the Hadrus illotus, WolL, from the same islet 

 was so slightly modified that no special name was given 

 to it. 



On the I. de Cima was a very distinct large race {cimensis, 

 Ckll.) of Scarites abbreviatus, Dej., but the S. abbreviatus on 

 Baixo was like that of the main island. The \\ee\\\% Laparo- 

 cerus morio^ Schon., from Cima and Baixo, and L. [Atlantis) 

 instahilis (WolL), from Cima, did not appear to present any 

 special characters. Calathus fimbriatus, WolL, from Baixo 

 (six specimens) , are typical. Harpahis gregarius, Fauvel, from 

 Cima, are racially diflerent from the typical (Madeira) form, 

 and have been described as subsp. cimensis j CklL, but it is 

 not clear that they can be separated from those on the main 

 island of Porto Santo. Similarly, Scarites abbreviatus porto- 

 sanctanus, CklL, described from Baxio specimens, is really 

 the Porto Santo form of the species. Eurygnathus latreillii 

 (Laporte) was collected by Wollaston on Baixo, but was not 

 different from the Porto Santo type. On Deserta Grande it 

 is somewhat modified, larger and more parallel, opaque ; 

 prothorax rather wider, especially in front, with its edges 

 more broadly recurved and its hind angles less distinctly 

 punctured, while the elytral strise are more perceptibly 

 punctate. This Deserta race, made known by Wollaston, 

 may be named subsp. loollastoni. 



LXXIX. — On some Psyllidge (^Hem. -Horn.) from the 

 New World. ^j¥. Laing, M.A., B.Sc. 



(Publislied by permission of the Trustees of the British Museum.) 



Stjnoza pulchra, sp. n. (Fig. 1.) 



General colour very dark shining brown. Antennoe very- 

 dark brown to black, with narrow silvery rings at the base of 



