136 MB. E. m'lachlan on new eokms, etc., 



A genus of small insects, of which I possess three species 

 from North and South America. Distinguished from all de- 

 scribed genera of Ily dropsy chida) (excepting possibly some in- 

 sects at present grouped in Macronema) by the anterior tibia) being 

 only uuicalcarate ; with somewhat the facies of small species of 

 Hydropsyche, but shorter and broader in form, the anterior 

 wings being less elongate, 



Smicridea. fasciatella, n. sp. S. fusca. Caput cinereo fuscoque 

 pilosum. Antenn£e fuscescentes, albido semiannulatjc. Pedes flave- 

 scentes ; tibiis, praecipue posterioribus, fusco-hirsutis. Abdomen fus- 

 cum : maris appendices inferiores bis articulatse, articulo ultimo deor- 

 sum curvato. Alae anticEe fuscae, niveo bifasciatse, basin versus niveo 

 nebulosse : posticae fusco-fuliginosae ( c? $ ). 

 Long. Corp. 2 lin. (=4 mill.); exp. alar. 6| lin. (=12 mill.). 

 Hab. Texas (Belfrage) {in Mus. auct.). 



Fuscous. Head clothed with cinereous hairs, the two large posterior 

 tubercles emitting brownish-black hairs : eyes deep black : antenna; 

 fuscescent, each joint above with a whitish spot, distinct only towards 

 the base of the thread : palpi obscure yellowish or fuscescent. Meso- 

 notum fuscous, with a tuft of brownish-black hairs on each shoulder. 

 Legs yellowish j the intermediate and posterior tibia:, especially the 

 latter, clothed with blackish or brownish hairs, principally on the outer 

 side. Abdomen fuscous : in the c? the app. sup. seem to form two long 

 straight blades closely applied one against the other ; app. inf. long, 

 two-jointed, directed upwards, clothed with fuscous hairs, the second 

 joint short and acute, curved strongly downward ; penis slender, cy- 

 lindrical, obtuse, semipellucid : in the 5 the extremity of the abdomen 

 is furnished with a short subtriangular lobe projecting from the last 

 dorsal segment and directed somewhat upward ; on each side, below 

 this, is a broadly obtuse lobe, little prominent. 

 Anterior wings smoky fuscous, almost blackish, with short golden pu- 

 bescence ; near the base is a white clouding, little distinct, and scarcely 

 forming a broad fascia ; beyond the middle a narrow, white, straight 

 fascia, almost interrupted by the dark veins ; and before the apex a 

 similar fascia, which is slightly incurvated on the costal and inner 

 margins ; these markings are caused by white pubescence, and do not 

 affect the membrane ; the veins are dark ; the subcosta extending 

 slightly beyond the middle of the costa ; the median cellule com- 

 mencing before the discoidal, and extending to its middle. Posterior 

 wings smoky blackish, with concolorous fringes ; the costal margin 

 rather irregularly sinuate; the subcosta joining the margin before 

 the middle. (PI. IV. fig. 19, details.) 

 I possess five examples taken by Mr. Belfrage in Texas in 

 July and October. 



