370 ICIIXKU.MONIU^. 



w anting ; basal nervure continuous through the uiedian ; base of 

 railius tliickened ; glabrous area distinct, but oftHU iimnafulate. 



Jian/e. Europe, Khodesia, Ceylon, Soutli India, Panama. 



Cameron points out that his genus is allied to Plearoneurophion 

 and Henicosjiihis in the basally thickened radial nervure, though 

 differing from the former in the continuous basal nervure and 

 broadly rounded disco-cubital nervnre. ami from the latter in the 

 (occasional) absence of corneous marks in the glabrous alar area 

 and in the nervellus being intercepted (occasionally) above the 

 centre. The somewhat uncomn)ou OjJ/ion hoiiiJ>)/ciuorus, Grav., is 

 the typical species and has been repeatedly In-ed from the Lobster 

 Moth, Stauropus fiKji, L., in Britain and Germany. The presence 

 of an infumare spot, considered characteristic of the genus bv 

 Cameron, cannot exclude the tollowing species fromProF. fSigismund 

 Brauns' genus (in Opusc. Ichn., they are separated soh ly on the 

 comparative length of the labrum), the composition of which has 

 been corrected by Kriechbaumer (Zeits. liym.-Dipt. 1901, p. 22). 



Table of Species. 



1 (2) Nervellus geuiculate ahoTO centre ; .stig-ma 



black orientalis, Mori. 



2 (1) Nervellus geniculate below centre : stigma 



stramineous hinmbratus, Mori. 



273. Stauropodoctonus orientalis, Mori. 



SjnlojMoti maculipennis, Cameron, Spolia Zeylanica, 1905, p. 125, 

 pi. B, %. 13 ( ? ) (7iec Biolog. Centr.-Amer. 1886, p. 292j. 



Statirojjodoctonus orientalis, Morley, Revis. Ichn. Brit. Mas. 1912, 

 p. 18. 



S 2 • An ochraceous species, broadly marked with blnck and 

 flavcus. Head glabrous and nitidulous, testaceous, with the face, 

 mouth and orbits liavous. Antenmc te-^\a,ceow-i red. Thorax with 

 three large and narrowly separated mesonotal vitttc, a])ex of meta- 

 notum, a large and basally obliquely constricted uiai'k on the basal 

 half of the mesopleurse, and a large suboval mark on the meta- 

 peurae, black ; pro- and meso-thorax impunctate : metanotum 

 glabrous before the transverse carina; the base depressed, some- 

 rimes with two stout discal carina3 ; the dise beyond the trans- 

 verse carina with three or four longitudii al carinte; the petiolar 

 area strongly regularly trans-striate, its sides obliquely and 

 strongly striate, with the striae clearl}' separated ; the apical 

 slope is somewhat widely and irregularly striate ; jjleurae smooth 

 and nitidulous. Scutfflum Literally carinate to near its apex. 

 Abdomen testaceous, with the third segment discally, and most of 

 the fifth and sixth, black. Wings hyaline, with the radial cell 

 bnsally infumate: stigma and nervures black, with the former 



