Phasmidae of Madagascar. 151 



They arc all very spiny (except Orohia)^ and all exhibit 

 strong Australian affinities. 



In our present ignorance of what other species may occur 

 in Madagascar it is useless to add further generalities ; but I 

 have much pleasure in appending the description of a fifth 

 species, an exceedingly large and beautiful insect. 



Genus Enetia, gen. iiov. 



Female, — Allied to Acrophylla, but with the head and 

 pronotum spincd above ; wings not longer than broad ; ovi- 

 positor boat-shaped, extending considerably beyond the 

 abdomen. 



Enetia spinosissima, sp. n. 



Head and pronotum of nearly equal length ; ocelli not 

 visible ; antenna? at least 22-jointed (possibly not quite com- 

 plete), scape very broad, second joint rather longer than 

 tjroad, third longer and slenderer, fourth transverse, fifth and 

 sixth equally long, rather shorter than the third, the remain- 

 der gradually increasing in length. Head green in front, 

 paler behind, with seven white longitudinal lines, tlie two on 

 each side of the median line each set with three red, black- 

 tipped spines ; there is also a small one on each side of the 

 hinder and slightly bifid extremity of the slender median 

 line. Pronotum pale olive-green, like the back of the head, 

 with some broad sufi'used whitish streaks and nine rather 

 irregularly placed spines. Pronotum green, above darkest, 

 and whitish behind, and covered all over with red, black- 

 tipped spines. Metanotum varied witli greenish and very 

 pale pink above and green below ; under surface very spiny. 

 Abdomen mahogany-brown, the median line beneath bordered 

 with numerous concolorous spines, arranged in pairs ; anal 

 styles very short, almost spinose ; oviduct green, boat-shaped, 

 the part extending beyond the abdomen as long as the 

 last two abdominal segments together. Legs green, with 

 rows of small white spots and dots, the spines on the femora 

 mostly yellow, tipped with black, and those on the tibiae 

 mostly green. Front legs strongly channelled, femora 

 strongly spined below, and the upper and outer carina serrate- 

 spinose. Front tibia3 with the outer carina much undulated, 

 but hardly forming distinct laminae. Middle and hind femora 

 and tibia3 with a double row of strong s))ines beneath, and 

 the femora with a double row of smaller spines above ; upper 

 carina of middle tibije waved. Tegmina brown, with yellowish 

 nervures, and a white stripe at the base of the costa, which 



