fin 



Body subovate, moderately convex, scarcely Bhining, closely tuberculate, piceous, 



clothed with short dusky hair. 

 Head large, closely tuberculate; eyes large and prominent; antenna rather long, 



oUS. 



Thorax small, not longer or broader than the head, widest near the middle, con- 

 tracted in front and behind, closely tuberculate with the interstices Bhining, 

 Bides rounded, Blightly margined, basal margin slightly reflexed, nearly straight, 

 with tin obtuse. 



ScuteUum lai ;ular, closely tuberculate. 



Elytra moderai but not broader than the head and thorax, widest before 



the middle, slightly contracted behind, closely tuberculate with th ices 



Bhining, sides faintly margined, extremities rounded and paler. 



Abdomen slightly exposed, pice 

 rather long, yellow. 



I nder parts piceous, • mum closely asperated. 



Differs from P. Kunzei in its rounded thorax and elytra, finer sculpture, and much 

 er antenn;e and legs. 



Habitat, America. Taken not uncommonly by Mr. Smith in the West Indian 

 I -land of Grenada. 



Ptilium Hornianum. 



P. Hornianum, Matthews, Trans. Am. Ent. Soc. xi. p. 1 l:i, 1884; Biol. Cent.-Amer. 



Col. ii. pt i. p. 146, 1888. 



L. c. -, :! ( . lin.=0 - 37 mm. — Oblongum, convexum, sat nitidum, castaneum, pilis 

 griseis vestitum ; capite magno, lato, antice producto, tuberculis minutis confertim 

 obtecto : oculis modicis, prominentibus ; pronota parvo, transverso, capite breviori, 

 vix latiori, ad medium latissimo, sat nitido, tuberculis minutis confertim obtecto, 

 lateribus leviter rotundatis, et leviter marginatis, margins basali recta, et leviter 

 reflexa, angulis fere rectis; elytris oblongis, convexis, capite atcpae pronoto parum 

 longioribus, vix latioribus, ad media latissimis, profunde et reticulatim asperatis, 

 lateribus minime rotundatis. apice lato, integro, valde rotundato ; abdominis 

 pygidio exserto, dilutiori ; pedibus modicis, laete flavis ; antennis sat longis, 

 obscure flavis. 



Body oblong, convex, rather Bhining, castaneous, clothed with grey hair. 



Head large and broad, elongate anteriorly, closely covered with minute tubercles; 



eyes moderate, prominent : antenna' rathi r long, dusky yellow. 

 Thorax small, transverse, shorter and scarcely broader than the head, widest at 



the mill ber shining, closely co th small tubercles, sides slightly 



rounded and slightly margined, basal margin straight and slightly reflexed, 



with thi nearly right angles. 



ScuteUum small, triangular, closely asperated. 

 Elytra oblong, convex, rather longer, but scarcely broader than the head and 



thorax, widest at the middle, deeply and reticulately asperated, sides scarcely 



rounded, apex broad, entire, and much rounded. 

 Abdomen with the pygidium only exposed, pale. 

 I. els moderate, bright yellow. 

 Under parts pale castaneous, with the mouth, hinder part of the metasternum, and 



terminal segments of the vi ater flav< scent. 

 Differs from./', ruguhsum in its much Bmaller size, fainter sculpture, shining 



surface, and bright yellow uid from all others in its minute size. 



Habitat, North and Central America. Found in Texas, near Columbus, by Mr. 

 II. Ulke, and subsequently by Mr. Champion in Guatemala. 



This interesting species is the smallest of all the Trichopterygida hitherto 

 discovered except Nanosella fungi. 



