242 [ Novciiiliur, 



DESCRIPTIONS OF NEW ANTSOCORIBM. 

 BY F. BUCHANAN WHITE, M.D., F.L.S. 



Dr. 0. M. Renter having announced (as students of Hemiiitera 

 will hare been glad to observe) bis intention of bringing ovit a Mono- 

 graph of the Anthocoridce and allied families, I am desirous of pub- 

 lishing sliort descriptions (some of them drawn up several months ago) 

 of certain species which appear to be undescribed. 



1. BbACHTSTELES WoLLASTONI, 11. sp. 

 Cinnamomeus capillis flavo-hrunneis vestitus ; capite rufescente ; pt'onoto disco 

 et parte postico, scutello, antennis {articnlo 2<' excepto) elytrisqiie phis minus fusces- 

 centihus ; membrana hrunneo-fiiliginea, hasi linea alhida ornato. Long. 2\ mm. 



Madeira. One specimen taken by the late Mr. T. V. Wollaston, 

 to whose memory I have dedicated the species. 



Allied to B. pilicornis, Muls., but at once distinguished by its 

 much larger size and greater stoutness, as well as by the somewhat 

 different colour. 



CAHDIASTETHUS. 



This genus is proving to be one of the most interesting in the 

 whole family, on account of its not-altogether expected wide distribu- 

 tion. A few years ago, two European and one North American species 

 were all that were known : since then, species have turned up in 

 several far distant parts of the world, and all in islands or island-groups 

 remarkable for the peculiarities of their faunas. This wide distribution 

 implies great antiquity for the genus, but it is not its only point of 

 interest. The species known to nie are separable into two sections, 

 characterised by the different arrangement of the membrane veins. 

 In one the veins are arranged as in the British species rvfescens, Costa 

 {testaceus, Muls.), viz., four free veins, the two middle ones approxi- 

 mating each other at the base. In the other section there are appa- 

 rently three veins only, but a closer insj)ection shows that the third 

 or inner vein consists of two, which are free at the base but soon 

 coalesce, leaving a smaller or larger triangular cell, from the apex of 

 which the united veins are continued. This cell is additional to the 

 usual long, narrow, triangular basal cell. It might have been expected 

 that one of these sections would have had a different geographical 

 distribution from the other, but in fact each is equally widely spread. 

 Of the nine species known to me, four belong to one section, and five 

 to the other. Of the four-veined section there are species in Europe, 

 St. Helena, South America, and New Zealand ; and of the falsely three- 

 veined section there are species in Madeira, New Zealand, and the 



