50 MR. F. WALKER ON HETEROCEROTJS LEPIDOPTERA 



wings whitish, cupreous reddish towards the base. Leugth of the 

 body 4 ? lines; of the wings 11 lines. 



Gen. DiMiRiCA, n. g. 



Mas. Cor/JMS sat robustum. Proiosm distincta. PaZpi erecti, vix lati, 

 verticem pauUo superantes ; artieulus 3"' linearis, 2° paullo brevior, 

 Atitennce pubescentes. Abdomen alas posticas non superans ; fasci- 

 culus apicalis parvus. Pedes validi, pilosi ; tibiae postica; calcaribus 

 qiiatuor longissimis. Alee anticaj ampla;, apice subrotundata;, costa 

 recta, margine exteriore convexo. 



Male, Body moderately stout. Proboscis distinct. Palpi erect, hardly 

 broad, rising a little higher than the vertex ; 3rd joint linear, rounded 

 at the tip, a little shorter than the 2nd. Antennae distinctly pubes- 

 cent. Abdomen not extending beyond the hind wings ; apical tuft 

 small. Legs stout, pilose ; hind tibiae w ith four very long spurs. 

 Wings ample. Fore wings slightly rounded at the tips ; costa straight ; 

 exterior border convex, rather oblique. 



289. DiMiRicA NUBIFERA, n. s. Mus. Albida, subtus fusca, palpis 

 extus ferrugineis, abdomine fusco iridescente, alis anticis cyaneo pur- 

 pureoque suifusis, plagis duabus costalibus liueisque tribus denticulatis 

 undulatis nigricantibus, fimbria nigricante albido strigata, alis posticis 

 fuscis. 



Male. Whitish, brown beneath. Palpi ferruginous on the outer side. 

 Thorax ferruginous in front. Abdomen iridescent brown. Fore wings 

 mostly suiFused with metallic blue and purplish tints ; costa with two 

 blackish patches ; one at the base, accompanied by some blackish 

 points } three denticulated undulating blackish lines ; fringe blackish, 

 with whitish streaks. Hind wings brown. Length of the body 5 lines ; 

 of the wings 14 lines. 



Gen. Penza, n. g. 



Mas. Corpus robustum. Proboscis valida. Palpi subascendentes, 

 caput paullo superantes ; artieulus 3"^* brevissimus. Antennce sub- 

 pectinatae, breviusculae. Abdomen alas posticas vix superans. AIcb 

 anticae acutae, costa recta, margine exteriore convexo. 



Male. Body stout. Proboscis robust. Palpi slightly ascending, ex- 

 tending a little beyond the head ; 3rd joint extremely short. An- 

 tennae slightly pectinated, rather short and stout. Abdomen hardly 

 extending beyond the hind wings. Wings moderately broad. Fore 

 wings acute ; costa straight ; exterior border convex, moderately 

 oblique. 



This genus and the following one should perhaps be removed from 

 the Acontidce ; but their affinities are doubtful. 



290. Penza puncticeps, n. s. Mas. Ferrugineo-fusca, abdomine 

 cinereo, alis anticis cinereo suflFusis, lineis cinereis angulosis valdc in- 



