82 H. C. EFFLATOUN. 



tahanoïdes Jaenn., Abhandl. genkt. Ges., VI. 402. (94). 12(3. 

 t. II. f. 10. (1867); Beck., Mitteil. Zool. ]\Ius. Eerl.. II. 83. 117. 

 (1903). 



t)IAGNGS[S: — Antsnna^ orange-ycUow ; eyes toiuhiiig iii tlio 

 maie for two-thirds of the lengtli oi' the vertical triangle. 



DKSCRIPTIOS:— Vole: Faoc entirely l)ia-k and tov;n-ed witli 

 a deiiscUiglit silveiT-grey tonientuni, as well as with a soft yellow- 

 ish-grey pubsscenc-e, excspt on the shallow liollow helow the 

 antennse. The proniinence of the face and the iwo thin longitudinal 

 lines beside it, the iipper niouthedge and the two lincs on the 

 gense are ail shining black. Vertex shining black \yitli black 

 pubescenoc. Frons covered with h airs, which are light grey in 

 front, but black on the middle and below, exccpt for a very smalJ 

 shining black space jast above the antennae. Eycs reddish- 

 vellow, louching for a fairly long distance; they ave spotted with 

 hrown and possess sliort light brown liairs, which are ncarly always 

 seen only on th3 superior part of tlie head ; o\\ this upper pari 

 the spots are more fréquent, ru.n logether, and in rare cases they 

 are entirely absent. Antennse rêddish-yellow, but at the base and 

 upper part of the third joint brown, with a rcddish-brown aiid 

 fairly long and bare arista. 



Thorax is shining aenecus black and beai's five greyish-whitc 

 longitudinal stripes which never reach the lower margin, but as a 

 rule, they end about two-thirds of the way down and soraetimes 

 half the way down the thorax ; of thèse the médian is the nar- 

 rowest, the tw^o latéral the broadest, and the two others interme- 

 diate in breadth, Pubescence is equal, dense and light grey, but 

 on the margin and pleurse it is much longer and of an ashv-grey 

 colour. Scutellum brow^nish-yellow, translucent, with a vestiture 

 similar to that of the thorax. 



Abdomen reddish-yellow- ; the basai segment is whitish-grey on 

 the sides and dnll dark grey in the centre, with its lo\\'er margin 

 shining black and covered with a short lead-grey pubescence. 

 The second segment possssses on its upper margin a wuds dull 

 black band, wdiich is crescent-shaped and supported by a médian 

 line with an expanding base (som.ewhat resembling an nrn), which 

 reaches to t'ne lower margin ; this base is continued laterally in a 

 thin line, which again widens as it reaches the side margin ; 

 sometimes this line is interrupted in the middle so that only its 

 widened ends remain, and are seen like fairly large spots on the 

 lower sidemargins; the segment is clothed with yellowish pubes- 

 cence, about the same length as that of the thorax and its lower 

 end bas a metallic .sheen. The third serment is not very unlike 



