84 
DIPTERA 
33. Genus ANEURA, Marshall 
Aneura. Marshall, Trans. New Zeal. Inst. Vol. 28, iSgS, p. 287 (1896). 
Characters. — Head rather small, oval, deeply imbedded in the thorax; e3'es oval, not emar- 
ginate ; proboscis stout; palpi long and slender, first joint about as long as broad, second longer than 
broad but stout, third long cylindrical, and slender, fourth longer than the others put together, very 
slender; ocelli three on the front, central one much the smallest; antennae 2-|-i5 jointed, joints of the 
scapus very short, cupuliform, slightly setose, joints of flagellum four times as long as broad, gradually 
decreasing in diameter toward the apex, terminal joint very narrow, densely pubescent. Thorax highly 
arched, smooth but for three longitudinal rows of hairs converging to a point in front of the scutellum, 
lateral margins slightly setiferous ; scutellum small, semicircular, setiferous on the posterior margin; 
metathorax steep. Abdomen slightly compressed. Legs long and slender, coxae rather short, not more 
than half the length of the femora, slightly setose, femora slender, those of the posterior legs compressed, 
hairy; tibiae of fore legs about same length as metatarsus, of the intermediate leg about length of whole 
tarsus, and those of posterior legs longer than the tarsus; posterior tibiae with two rows of scarce, short, 
feeble spines; spurs small and feeble; tarsi long and slender, with a few small prickles on the underside. 
Wings oval, rounded at the apex, and anal angle not prominent, shorter than the abdomen, surface 
hairy. Subcostal vein more than one-third the length of the wing but not half its length, Sc^ (subcostal 
crossvein) wanting; radial sector arcuated, joining the costa just before apex, with the costa prolonged 
beyond its tip and reaching the apex of the wing; base of the radial sector is situated some distance 
before the apex of the subcostal vein ; petiole of the media is about as long as its anterior branch, 
branches divergent; cubitus forks proximad of the base of the fork of the media; anal vein incomplete 
(PI. 5, Fig. I 7). 
Type species : A. boletinoides, Marshall. 
Geographical distribution of species : 
I. A. boletinoides, Marshall, Trans. New Zeal. Instit. Vol. 28, i8g5, p. 288, Australia, 
pi. 10, f. 5; pi. i3, f. 12, i3 (1896). 
34. Genus MYCETOPHILITES, Forster 
Mycetophilites. Forster, Abh. Geol. Spezial. Elsass. Vol. 3, 1890, p. 465, t. 14, f. 10 (1891). 
? Adonia. Giebel (nec Mulsant), Ins. d. Vorwelt, p. 209 (i856). 
? Pseudadonia. Handl. Fossil Ins. (for Adonia) (1906). 
Characters. — A fossil from Alsatia of which the wing is a good condition (PI. 5, Fig. 19). 
The subcosta (Sc) is \exy long, nearly reaching the apex of the wing; Rj runs parallel to this and ends 
a little beyond the subcosta; the radial sector, also nearl}^ parallel, ends in the apex of the wing. The 
R-M crossvein is very oblique; the cubitus forks proximad ol the proximal extremity of this crossvein, 
its branches only slightly divergent; the anal vems incomplete. 
From the imperfect wing oi Adonia fiilonia (Platyura), figured by BroJie (Fossil Ins. p. 33 [121], 
pi. 3, f. 9 [1845J), it appears that the subcosta is very long. Of the posterior part of the wing nothing can 
be made out. 
No species are named under Mycetophilites ; under Adonia there is only fittonia, Brodie {Plaiyura 
fittonia), Fossil Ins. p. 33 (121), pi. 3, f. 9 (1845), from the English Purbecks. 
