Australian and North American Trichopteri/gia. 297 



ornato, angulis posterioribus aciitis, in maribus valde pro- 

 ductis ; elytris brevibus, in maribus ad apices valde at- 

 tennatis, ordinibus siniiatis regulariter et distincte asperatis; 

 pedibus Iffite flavis ; antennis piceis. 



Cajjut magnum datum, in fronte sat productum, nitidum, 

 tuberculis minutis remotisque ornatum ; oculis parvis, baud 

 promineutibus ; antennis niodicis sat dilute piceis. 



Pronotum sat magnum, capite parum longius, multo 

 latius, valde convexum, in maribus ad basim valde dilata- 

 tum, tuberculis parvis ordinibus sinuatis regulariter dis- 

 positis, interstitiisque nitidissimis indistincte reticulatis 

 ornatum, lateribus rotundatis leviter marginatis, margine 

 basali fere recta, angulis acutis dilutioribus, in maribus valde 

 productis. 



Scutelluw, magnum, latum, triangulare, confertim aspe- 

 ratum. 



Elytra subquadrata, capite atque pronoto baud longiora, 

 parum angustiora, in maribus postice attenuata, ordinibus 

 regulariter sinuatis confertim baud profunde asperata, 

 sutura sat elevata, apicibus latis, parum rotundatis, dilu- 

 tioribus. 



Abdomen modice exsertum, segmento apicali dente parvo 

 utrinque armato. 



Pedes modici,l8eteflavi,articulo basali tarsorum anteriorum 

 in maribus dilatato. 



Suhtus nigra, metasterno sat profunde asperato, coxis 

 flavis, ore atque apice ventris piceis. 



Differt a T. anthracind statura minori, pronoto tuberculis 

 minoribus sed multo densioribus ornato, atque antennis 

 dilutioribus. 



Hnhitat New Zealand, exemplis nonnullis a D. Lawson 

 captis. 



Ohs. Femineis est forma magis oblonga, atque pronotum 

 vix ad basim dilatatum. 



The two North American species described below were 

 sent to me by my lamented friend Mr. Crotch, unaccom- 

 panied by any notice of their capture. They are of the 

 most distinct and interesting description. The Tricliopteryx 

 is unlike any of its genus ; it approaches T. variolosa more 

 than any other species in form, but is distinct from all in 

 its shining glabrous surface and deep black colour. 



Y 2 



