6-i [August. 



DESCRIPTIONS OF TWO NEW SPECIES OF TEICHOPTERYX, AND 

 RECORD OF THE CAPTURE OP T. VOLANS IN BRITAIN. 



BT THE RET. A. MATTHEWS, M.A. 



A short time ago, I received from Mr. Champion a series of 

 Trichopteri/gia for examiDation, of wliicli the greater part had been 

 taken by himself in Scotland. This series, although by no means ex- 

 tensive, contained more rare species than I ever saw before in such 

 close contact. Besides examples of T. longula, T.picicornis, and other 

 good species, I found three specimens of T. volans. This insect had 

 previously been found by Col. Motschulsky alone, and though I have 

 for a long time expected to meet with it in this country, I have 

 hitherto searched for it in vain. But T. volans was not the most im- 

 portant or interesting member of the group, for it contained seven 

 examples of a distinct and pretty species hitherto undescribed ; this I 

 now propose to name after its discoverer, whose perseverance and 

 success in the pursuit of the Trichofterygia well deserve to be re- 

 corded in their nomenclature. The position of this species in the 

 British list will be between T. attennata and T. fascicular is; T. volans 

 must be placed immediately after T. sericaiis. 



While comparing Mr. Champion's specimens of T. volans with 

 others of the same genus reserved in my own cabinet for future ex- 

 amination, I resolved to describe one species, which I am fully per- 

 suaded is truly distinct. It has always been my habit to put by 

 specimens which would not coincide with known species for future 

 examination, labelled "n.s. ?" Thus I have many whose specific value 

 has not been determined by the subsequent capture of other similar 

 specimens ; they may possibly be only varieties, at any rate, I do not 

 choose to publish them as distinct species without further corroborative 

 evidence. But in the case of this species, no such uncertainty exists, 

 since three examples have occurred precisely similar to each other : 

 they may be readily distinguished from their congeners by the outline 

 of the thorax, of which the posterior angles are enlarged in the pe- 

 culiar curve of the bill of the Pufiin, Fratercula arctica. This species 

 must be placed next in succession to T. grandicolUs. 



Trichoptertx Cha]mpio>"is, n. sjj. 



Augusta, elongata, eonvexa, ohscure-castanea, nitida, pilis fulvis parce vestita ; 

 capite parvo fronte rotundato, oculis parvis hand prominentibus ; pronoto modico ad 

 basin latissimo, lateribus leviter rotundatis, tuberculis minutis ordinibus sinuatis in- 

 distinctis dlspositis, interstitiisque nitidis, leviter reticulatis, ornato, angulis posterio- 

 ribus elongatis ; eli/tris brevihiis valde altenuatis, pronoto paru/n angtistioribiis, 



