i 



LYONETIAD.!:. 289 



spot surrounding apical mark. Hindwings and cilia ochreous- 

 whitish. 



British Guiana, Bartica, Mallali, January to March (ParisJi); 

 five specimens. 



Hapalothyma ioplocama, n. sp. 



2 ' 11-13 mm. Head, palpi, iintoniioe, thorax white. Abdomen 

 whitish. Forewiugs elongate, rather narrow, costa gently arched, 

 apex tolerably pointed, termen extremely obliqnely rounded ; 

 whitish, with faint violet reflections ; several variable grey longi- 

 tudinal streaks between base and *, terminated in disc by a more 

 or less developed slightly curved transverse violet-grey line preceded 

 towards costa by a small spot of pale yellow suffusion ; a violet-grey 

 curved fascia beyond middle, marked with a yellowish spot near 

 costa, area beyond this suffused light violet-grey; a black apical dot 

 preceded by a suffused white costal dot : cilia light grey, on tornus 

 whitish, base at apex yellowish, a white spot above apex. Hind- 

 wings light grey ; cilia grey-whitish. 



Briiish Guiana, Bartica, January, February {ParisJi) ; two 

 specimens. A third specimen is larger (15 mm.), and has three 

 pale yellow streaks indicated anteriorly between the grey streaks, 

 but is probably the same species. 



THOMICTIS, n. g. 



Head small, rough-haired, face very retreating ; ocelli posterior ; 

 tongue obsolete. Antenn£el,in d" simple, basal joint rather short, 

 stout. Labial palpi moderate, subascending, with appressed scales, 

 terminal joint about as long as second, tolerably pointed. Maxillary 

 palpi long, several-jointed, folded, filiform. Posterior tibiie with 

 appressed scales. Forewings lb simple, 2 from angle, 7 to costa, 7 

 and 8 approximated, 11 from towards base. Hindwinjj^s 1, sub- 

 trapezoidal, cilia nearly 1 ; 2-4 parallel, 5-7 approximated at base, 

 8 long. 



Probably an early form of the family. 



Thomictis ephorista, n. sp. 



(S . 8-10 mm. Hairs of crown dark fuscous, face whitish. Palpi 

 dark fuscous, apex whitish. Antennae grey-whitish. Thorax whitish- 

 ochreous, anterior margin dark bronz^'-fuscous. Abdomen grey, 

 apex pale ochreous. Forewings elongate, costa gently arched, apex 

 obtuse-pointed, termen subconcave, oblique ; dark bronzy-fuscous ; 

 a broad ochreous-whitish median streak gradually dilated from base 

 to termen, where it extends from apex to tornus, more or less 

 completely intersected by a very oblique line or streak of ground- 

 colour from apex to beyond middle of lower margin, dorsal area 

 beneath this mixed or irrorated ochreous-whitish ; a fine white very 

 oblique striga from costa beyond middle reaching nearly half across 

 wing, and one along costa from | reaching nearly halfway to apex 



VOL. II, — March, 1920. ij 



