27 



Pleurum. — The epimera and episterna arc rather large, while the coxa; 

 and trochantines are shorter and broader than in the NoctuidcB. 



Zygcenidce (Zygoma near loniceros, pi 7, fig. 17, 17'/). — Tergum. — Meso- 

 scutum somewhat compressed, narrowing in front ; scutellum as long as wide, 

 well-rounded posteriorly; metascutum with the two halves widely separated 

 by a distance equal to the width of the .scutellum. 



Pleurum. — Epimera and episterna of the raesothorax very broad. The 

 meso-trochantines and coxa? unusually short and broad, the trochantines espe- 

 cially much swollen. 



Ageriadce (Algeria sct'/m&z Harris, pi. 7, fig. 18, 18a). — Notwithstanding 

 the slenderness of the body, the thorax is quite spherical, in some respects 

 much as in Zygcena, while along the tergum the thorax is rather long and 

 narrow; the Hanks are short and broad. 



Tergum, — The tegula>, winch I have not hitherto attempted to describe, 

 are very large and broad. Removing them, the mesoscutum is seen to be 

 remarkably long and narrow, not much wider than the scutellum. The latter 

 is as long as wide, well pointed behind. The two halves of the metascutum 

 nearly touch each other; scutellum very small, in the form of a flattened tri- 

 angle. 



Pleurum. — While the flanks of the prothorax are rather more slender 

 than usual, more so than in Zygcena, those of the two hinder segments, espe- 

 cially the metathorax, are shorter and broader. The epimeral and episternal 

 pieces of the two hinder segments an 1 , large and broad. The coxae and tro- 

 chantines arc very short and broad, particularly the meta-trochantine, where 

 in Zygcena and Telea it is long and comparatively slender. 



Sphingidce (Deilrphila lineata, pi. 7, fig. 19, 19a). — In the thorax of 

 Algeria we have a close approximation to that of Deilephila and the SpJdngidce 

 generally, as well as the Papilionida, as shown in the short, broad, full flanks 

 and very long, narrow mesoscutum. 



Tergum. — Mesoscutum long and narrow, slightly wider than in Ageria. 

 Scutum much shorter posteriorly than in Algeria. The metathorax is very 

 short, the two halves of the scutum arc small, widely separated by a distance 

 nearly equaling the width of the scutellum. The latter is shorter than in any 

 ol the previous families, forming a sinuous transverse ridge. 



Pleurum. — The epimera and episterna are short and very broad, while 

 the coxie and trochantines are very short and broad. The middle trochan- 



