Classification of the Coleopterous family Endomychidae. 81 



Asymhius, in which thoy arc ll-joi)itcd and of a highly 

 pecuhar development. Parasymbius has ten joints, form- 

 ing a long and stoutly-made organ of wliich the three 

 terminal joints are large, elongate and very loosely con- 

 nected, but together not quite as long as the seven preced- 

 ing joints, which are also elongate in gradually decreasing 

 degrees, except the 6th and 7th, which are stout and 

 quadrate. The legs are slender, the tarsi very long, 

 fihform and quasi-3-jointed. The body is broad and 

 convex, but not rotund, the pronotum being strongly 

 contracted at the base, where the angles are rather obtuse 

 and flattened at the sides. The lateral margins are very 

 narrow, the basal impressions extend a little beyond the 

 middle and are very broad at the base, where they are 

 joined by a deep, curved basal stria. The whole upper 

 surface is clothed with not very close soft yellow hair; 

 the pronotum is smooth and shining and the elytra are 

 rather strongly punctured, some of the punctures, which 

 are a little larger than the rest, forming irregular and 

 incojispicuous hues. 



The only known s])ecies is the following, described from 

 a single specimen in the British Museum. 



Parasymbius philippinensis, sp. n. 



Testaceus, antennarum aiticulis 7-9 paulo infuscatis; brevis, 

 late convexus, pilis flavis baud longis aut densis vestitus; pronoto 

 lato, lateribus aequaliter rotuudatis, antice et postice contractis, 

 basi fere recto, sulco posticali prof undo, valde arcuato; scutello 

 transverse; elytris convexis, latis, fortitcr punctatis, punctis panic 

 niajoribus nonnuUis longitudinaliter ordinatis, lateribus undique 

 fortiter et aequaliter arcuatis. 



Long. 2-5 mm. ; lat. max. 1*5 mm. 



Hah. Philippine Is. : Isabela {Semyer). 



Genus Monocoryna. 

 This enigmatical genus, described by Gorham in 1885, 

 has, perhaps wisely, not been included in the recent 

 catalogue of Endomychidae. It has affinities with both 

 the Endomychidae and CoccineUidae, and its most singular 

 feature, the antenna, has a remarkable similarity to 

 that of the Erotylid genus Euxestus, but it is aji isolated 

 gcjuis in which the characters of neither family distinctly 



TRANS. ENT. SOC. LOND. 1920. — PARTS I, II. (JULY) G 



