LIST OF HOMOI'TEROUS INSECTS. 409 



10. Flatoides marginalis, Fern. 



Niger ; frons et epistoma carinata ; prothornx carinatus ; meso- 

 thorax quinque-carinatus ; abdomen obscure ferrugineum ; 

 pedes ferruginei ; femora picea ; alee nigro-fusca, amplce, 

 apice guttis albis fasciatce ; al(B anticce maculis quinque lim- 

 pidis ornatcB. 



Body black: head as broad as the chest; crown surrounded by 

 a rim, slightly concave on the hind liorder, straight in front ; its 

 length hardly one-eighth of its breadth; front very broad, rounded 

 on each side, narrow towards the epistoma, slightly concave at the 

 junction, surrounded by a rim, and having a middle ridge which 

 does not reach the fore border ; epistoma triangular, with a middle 

 ridge : fore-chest with a middle ridge, on each side of which it is 

 somewhat impressed, slightly arched, about twice the length of the 

 crown : middle-chest with five ridges ; inner pair curved, and in- 

 closing a somewhat flat and almost elliptical compartment ; outer 

 pair short, straight, joining the inner pair before half the length of 

 the chest: abdomen dark ferruginous, as long as the chest: legs 

 ferruginous ; thighs pitchy : wings blackish-brown, ample : fore 

 wings adorned with five colourless spots ; one a dot on the disk ; the 

 second very large, triangular, on the fore border near the tip ; third 

 much smaller, on the tip, accompanied by two or three colourless 

 dots; fourth and fifth small, irregular, on the tip near the hind 

 border ; a row of colourless dots along the tips of the four wings ; 

 veins blackish, pale on the spots ; longitudinal veins very numerous ; 

 cross-veins rather numerous ; fore border dilated near the base, where 

 there is a row of oblique parallel cross-veins. Length of the body 

 3^ lines ; of the wings 12 lines. 



a. Africa. From Mr. Sowerby's collection. 



11. Flatoides discus. 



Cervinus ; frons transverse suhcarinatus ; mesothorax luteiis, mm 

 carinatus ; abdomen subtus nonnumquam albidum ; pedes albo- 

 cervini ; alee anticce cervincc, subtus albo suffusce, macula 

 maxima obliqua limpida disco ormitic ; alee posticce cinerece^ 

 basi et ad costam limpidce. 



Body buff: head nearly as broad as the chest ; crown not visible 

 above ; front broad, with a slight cross-ridge near the crown, rounded 

 on each side, not narrower towards the epistoma, straight at the junc- 

 tion, a little longer than broad ; a middle ridge proceeds from the 



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