186 



evanescente. Scutellum nigrum, punctulatum, spina cum basi ejus 

 incrassata albida, apice nigra, nonnihil mitante (cire. 60°), lôbo 

 postico pronoti pauUo breviore. Pectus plumbeum, dense nigro- 

 punctatum, macula transversa marginis postici mesopleurge, 

 angulo postico metapleurte maculaqiie acetabulorum omnium 

 albidis. Hemelytra apicem segmenti penultimi dorsi abdominis 

 haud attingentia, hyalina, corii parte prolongata médium segmenti 

 quarti connexivi haud attingente, angulo et margine apicalibus 

 fuscis. Abdomen supra rufo-testaceum,vittis duabus percurrentibus 

 fusco-ferrugineis, in segmente ultimo saturatius fuscis prœditum, 

 subtus rufum, apicem versus levissime obscuratum, segmentis 

 duobus primis plumbeis, margine summo apicali segmentorum 

 quarti et quinti ventris albido, connexivo supra et subtus dilute 

 flavo-testaceo, suturis intersegmentalibus fuscis, segmentis primo 

 et secundo ventris asque longis, tertio quam duobus primis unitis 

 duabus trientibus longiore et quam tribus ultimis unitis paullo 

 breviore. Pedes luride testacei. — Long ^ 6.5 mill. 



Mas gynsecomorphus : Antennae corpore tertia parte longiores. 

 Abdomen e basi segmenti secundi ad apicem tertii sensim dilatatum, 

 par segmentum quartum subparallelum, deinde usque ad apicem 

 angustatum, connexivo fere toto ultra marginern costalem hemely- 

 trorum extenso. 



Peradeniya. 



Somewhat allied to Ph. sedula Horv., but smaller, with much less 

 separated ocelli, much shorter, black-banded posterior lobe to Ihe 

 pronotum, shorter third abdominal segment, etc. 



This is the first Colobathristid found west of Sumatra and Burma. 



The single spécimen taken by Dr. Luther is in very good condi- 

 tion and is extremely interesting by having, though a maie, the 

 abdomen formed quite as in the females of this genus. There can 

 be little doubt that maies of this species with normally constructed 

 abdomen will be found. Gynsecomorphous maies were hitherto 

 known only in the neotropical genus Colohasiastes Bredd. 



The females of the genus Phœnacayitha hâve seven abdominal 

 segments, also the seventh provided with a distinct connexivum. 

 In the females of the other gênera known to me there are only six 

 abdominal segments, as in the maies of this family. This disparity 

 in the number of the segments is not mentioned by Horvàth in his 

 monograph. The gynœcomorphous maie oî Phœnacantha described 

 above has six ventral segments, as the normal maies. The third and 

 fourth segments are often also in the females of Phœnacantha 

 indistinctly separated from each other, but their length can always 

 be determined, as the corresponding connexival segments are well 

 separated. 



