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Genus IV. Tceniorhynchus. 



1. Taeniorhyncjius Richard! (Ficalbi). ' 

 Tab. XV XVI. 



Description. Female: Proboscis moderate; labellae moderate; vestiture of 

 broad scales blackish-brown with many black and a few yellowish scales; labellae 

 bright ferruginous, setae small, black; yellow on the labellae. Palpi brown, about a 

 fifth as long as the proboscis, with many outstanding bristles and creamy-yellow 

 scales. Antennae filiform, moderate, blackish-brown, joints at shaft subequal, 

 rather short, densely clothed with silvery hairs; second joint a little thicker, ferru- 

 ginous; tori globose, brownish with an inconspicuous group of flat white scales on 

 inner side; hairs of whirls sparse, 

 dark. Eyes black. Clypeus broad; 

 rounded, almost black, nude. Occi- 

 put brown, clothed with narrow, 

 curved, pale scales and numerous 

 forked black ones ; numerous black- 

 ish and pale brown bristles pro- 

 jecting at vertex. 



Prothoracic lobes small re- 

 mote, similar to mesonotum. Meso- 

 notum chestnut-brown with scatter- 

 ed golden scales, more or less di- 

 stinctly arranged in rows, bristles 



black. Scutellum trilobate, clothed Text fig. 12. Tceniorhynchus Richardi. Larva living; with 

 with narrow curved scales and the sipho pierced into the root, 



bright, golden brown border-brist- 

 les. Postnotum elliptical, nude, clear, ochraceous brown; pleurae and coxae pale, 

 yellowish-brown, with a few pale yellowish scales. 



Abdomen subcylindrical, flattened, slightly tapering towards tip, when denuded 

 dull ochraceous-brown, under certain conditions of light it is dark, shining, while 

 in other cases it may be black. When covered with dusky scales it is almost black 

 with now and then traces of apical bands. Five or six yellowish-white lateral, often 

 rather inconspicuous spots. Numerous golden brown hairs along the sides and the 

 hind margins. 



Wings: The veins densely covered with rather broad, elongated oval, brown 

 and light scales; besides there are a few scattered yellow scales, especially along 

 the costal region; no long thin lateral scales. First submarginal cell almost as long 

 as the second posterior cell; stem of the former about half the length of the cell; 

 stem of the latter also about the same relative length; basal cross-vein only about 

 once its own length apart from anterior cross-vein; halteres pale, ochraceous. 



