Mr. W. F. K'u-hy— Notes on Blattldfe. 415 



Genus IIeteeoplana, no v. 



Differs from Macropanesthia, Saussure, in the presence of 

 rudimentary tegmina and wings. Body broad ; pronotum 

 excavated in front, the excavation thickly and finely punc- 

 tured, the front of the raised crest behind it with two 

 tubercles near the middle. Body mostly smooth, but the 

 abdomen with the sixth and seventh segments thickly 

 covered with large depressed punctures, both above and 

 below; seventh segment with a large securiform tooth, slightly 

 pointing backwards, on eacii side at the extremity; terminal 

 plate very closely and finely punctured above, and with large 

 depressed punctures below ; at the base on each side are two 

 large teeth, the first raised ; beyond these the extremity is 

 strongly and regularly dentated. Front femora unarmed. 



Heteroplana Thomsoni. 



Long. Corp. cJ 28-35, ? 25-26 miliim,; lat. corp. ^ 

 17-18, ? 15 millim. ; long. tegm. 8 millim., cum alis 

 11 millim. 



Dark reddish brown, the antennae, lower mouth-parts, 

 and legs much redder; eyes honey-yellow; tegmina lateral, 

 extending just beyond the extremity of the metanotum, 

 uiiiformly broad for three fourths of their length, and then 

 contracting rather suddenly ; wings narrow, extending to 

 beyond the first abdominal segment, and then curved up 

 suddeidy to an obtuse point, as are also the tegmina; the 

 first tooth in the terminal segment of the abdomen upcurved, 

 and clothed with short, reddish hair. 



Described from seven specimens (three males, four females) 

 brought by Mr. Basil Thomson Irom the island of Aignan in 

 the Louisiade Archipelago. 



The insect has considerable resemblance to the figure of 

 Macropanesthia MilUeri^ Sauss., but the rudimentary wings of 

 the male, and the difference in the shape of the appendages 

 and crenulation of the last two abdominal segments, suffi- 

 ciently indicate it as distinct. 



FORFICULID^. 



Additional note on Labidura hidens, Oliv. 

 {antea, p. 66. n. 16). 

 All the observations under this name apply to L. erii- 

 throcephata, Fabr. The true L, bidens is described as 

 having a black head, and is not yet represented in the 

 Mu.seum. 



