162 



Dr. A. JefTeris Turner's Observations on 



abruptly shorter, the palpi are short and hairv, and the 

 posterior tibiae have a minute pair of terminal spurs only. 

 By far the largest genus in the family, Xyleutes, Hb., 

 type crassa, Drury (= Chalcidica, Hb., Endoxyla. H.-Sch., 

 Duomitus, Butl., Himaeya, Moore, Azygophleps, Hmps.), is 

 represented in all the warmer regions, but most numerously 

 in Australia. The neuration is that of the more primitive 

 form of Phragmatoecia, and it differs from that genus only 

 in the scaling of the head and palpi, but the fore-wing is 

 very constant in structure, only slight differences existing, 

 such as the short-stalking of vein 9, or the lower branch 

 of the median terminating opposite 4 instead of opposite 5 

 as in crassa, or even from shortly before 4, but the median 



Fig. 13. — Xylotrypa strigiltata,, FeliL 



cell of the fore-wing is always narrow,, not broad as in 

 Zeuzera. 



An undescribed genus,* which contains the species 

 strigillata, Feld., from temperate South America, is an 

 interesting modification of Xyleutes. The fore-wing and 

 antennae are the same, but the palpi and tibial spurs are 

 obsolete, and in the hind-wing of the <$ there is a branch 

 running from vein 7 to 8. This, I think, represents one 

 of the veins of that wing usually undeveloped. It is 

 variable, and in a $ example represented by only a short 

 spur on the dorsal side of 8. As there is only one example 

 of each sex in the British Museum I cannot say whether 

 the variation is sexual. 



* Xylotrypa, gc>n. nov. 



