56 MYCETOPniLIDiE. 



Geuus CEROPLATUS, Bosc. 



Ceroplatiis, Bosc, Act. Soc. Hist. Nat. Paris, i, 1, p. 42 (1792). 

 Cerotelio7i, Rondaui, Dipt. Ital. Prod, i, p. 191 (1856). 



Genotype : Eondani designated Platyura laticomis, Mg., as the 

 type species. This is now considered synonymous witli Cerotelion 

 {Tijjula) lineatus, F, 



Head small, broadly ovate, flattened in front ; eyes oval, some- 

 times emargiuate at base of: antennae. Three ocelli arranged in 

 a transverse curved line in front. Palpi short, not incurved, three 

 ■or four-jointed, the 1st joint very small, the following longer, 

 differing with the species. Antennae projecting forward, shorter 

 ttian head and thorax together, very broad and flat, compressed, 

 strap-like, 16-jointed, basal joints short, apical joint conical or 

 bud-like, the intermediate ones much broader than long. Thorax 

 •ovate, highly arched ; scutellum nearly semicircular, metanotum 

 arched. Abdomen of seven segments, cylindrical or somewhat 

 depressed. Legs long, the tibiae with spurs of unequal length, 

 lateral tibial setae absent or very minute. Wings microscopically 

 setulose, shorter than the abdomen, with the base broadly 

 rounded, decumbent. Costa produced beyond lower branch of 

 3rd vein ; auxiliary vein long, ending at about the middle of the 

 wing, subcostal cross-vein quite near base of auxiliary vein; 1st 

 longitudinal vein long and straight ; 3rd longitudinal originating 

 in a wide sweep, bisinuate, the anterior branch very short, up- 

 right, united to the 1st longitudinal vein near its tip {Ceroplaius 

 s, s.) or to the costa just beyond the tip of the 1st longitudinal 

 {Cerotelion, Eond.). The 4th vein forks soon after quitting the 

 coalesced portion of the 3rd and 4th veins, the branches gently 

 ■divergent ; posterior cross-vein normal in length and position, 

 5th lougiludinal widely forked immediately before meeting the 

 anterior cross-vein ; 6th vein long, reaching border of wing, 7th 

 very short and indistinct. 



Fig. 8.— Larva of Ceroplatiis. 



Life-Jiistonj.— The larvae live on the underside of tree-fungi 

 protected by the webs that they spin. Ceroplatiis sesioides, a 

 European species, is said by Wahlberg to live on Folyporus hetulce, 

 and this author states that' both the larva and pupa of this species 

 emit a phosphorescent light, whilst the larva of C. mastersi, of 

 Australia, is also luminous. 



Hange. Europe, A ustralasia, North and South America ; now 

 recorded from the East for the first time. Johaunsen separates 

 Cerotelion from Ceroplatiis; in the Kertesz Catalogue they are 

 united under the latter name. 



