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UNITED STATES NATIONAL MUSEUM BULLETIN 224 



PAET 1 



longer setae and a weak subapical bristle below, and 

 setae over most of its dorsal length. 



Head, anterior aspect : The face is pubescent, with- 

 out pile on the upper third, and at this point with a 

 group of weak hairs rather appressed and directed 

 downward and restricted to the outer third. Below 

 and transversely across the epistomal margin there is 

 a group of hairs moderately long, obliquely turned 

 downward, which appear to vary in stiffness but are 

 scarcely to be called bristles. The front is slightly 

 divergent, the vertex not divergent; the front bears a 

 few fine hairs laterally above. The vertex is moder- 

 ately excavated, the ocellar protuberance large with ver- 

 tical sides; the ocelli large, slightly visible in profile 

 and with 6 to 8 pairs of fine, short hairs. Eye facets 

 strongly enlarged centrally ; the eyes extend distinctly 

 below the face and epistoma. 



Thorax : The thorax is bare and polished, the lateral 

 margins narrowly and the whole of the pleuron, except 

 for a small bare spot on the anterior sternopleuron and 

 central pteropleuron, micropubescent. The mesonotum 

 is strongly convex both anteriorly and posteriorly. The 

 mesonotal pile is short, subappressed, fine, scanty and 

 setate and arises from deep, coarse punctures. There 

 is a double row of scanty acrostical elements followed 

 by a wide bare space; the dorsocentral bristles are ex- 

 panded anteriorly to and behind the humerus. Humer- 

 us bare and polished, though with pubescence anteriorly 

 below. Rather weak, pale bristles are present as fol- 

 lows: 1 notopleural, 3 postsupraalar ; no postalar, and 

 the scutellar margin with 2 pairs of rather short, stiff 

 hairs and 2 pairs of still shorter, intermediate hairs. 

 The surface is bare except for pubescence along the 

 base, which pubescence is also present, though more 

 narrowly in Aterpogon. Propleuron with a few long, 

 scattered, fine hairs on the pronotum laterally and 

 more abundant hairs below. Remainder of pleuron 

 without pile, except for a few hairs on the anterior 

 mesonotal prolongation and a vertical row of 6 moder- 

 ately long, very delicate hairs which are not bristly on 

 the metapleuron. Metanotal slopes pubescent and 

 tegula pubescent only. Metasternal slopes with long 

 pile on the upper portions; the metasternum with a few 

 long hairs; postcoxal area membranous. Presternum 

 dissociated. 



Legs: The anterior and middle femora slightly 

 thickened towards the base; posterior femur a little 

 wider through the middle, stout without being thick- 

 ened and only moderately elongate. The hind tibia is 

 stout being gradually and narrowly attenuate towards 

 the base. All bristles and pile pale except on tarsi. 

 Hind femur with a few scanty, long hairs above and 

 equally scanty, longer hairs below ; laterally this femur 

 bears short but quite stout bristles. Hind tibia with 

 5 dorsolateral, 7 dorsomedial, and 3 somewhat longer 

 ventrolateral bristles. Ventral surface with suberect, 

 dense fringe of pile which is rather shorter than in 

 Aterpogon, but of similar character ; it extends to the 

 basal fourth. Apex with 1 dorsal, 1 lateral, 2 medial, 

 and 2 or 3 ventral bristles. Middle femur with only 



fine pile and 2 long hairs ventrally at the base. This 

 tibia with 3 short posterodorsal, 2 rather long, oblique, 

 anterodorsal, 3 posteroventral and 3 quite long, oblique, 

 attenuate ventral bristles. Anterior femur with a few 

 fine, long hairs below, its tibia with a double row of 

 very short bristles above, each containing 2 or 3 and 

 with 2 moderately long, oblique posteroventral elements 

 below. Apex with a strongly curved ventral spine, 

 the basitarsus microdenticulate and with posteriorly a 

 dense fringe of short, fine pile, only replaced by setae 

 anteriorly. Tarsi end with long, slender pulvilli, sharp 

 claws bent chiefly at apex and empodiiun two-thirds 

 as long as claws. Hind coxa without tubercle. 



Wings: The wings are subhyaline, the base often 

 brown. Marginal cell widely open ; anterior branch of 

 third vein ends at apex; fourth posterior cell open but 

 narrowed two-thirds of its maximum width; anal cell 

 widely open; second basal cell ends in 3 veins; alula 

 large, ambient vein complete. 



Abdomen : The abdomen is comparatively robust, very 

 slightly wider towards the end of the third or fourth 

 segments. On the first five segments it is coarsely and 

 strongly punctate. The abdomen is distinctly droop- 

 ing, the sides rather strongly rolled; first tergite not 

 swollen laterally. Pile of abdomen minute, appressed 

 setate, arising from punctures; it is very slightly longer 

 along the lateral margin; bristles absent; sternites with 

 a few fine, long hairs, the first excepted. There are six 

 tergites in the male, the seventh concealed beneath the 

 sixth ; eight tergites in the female, the last two consider- 

 ably shortened. Tergite eight about half as long as 

 tergite seven ; tergite seven about half as long as the 

 sixth. The sixth tergite three-fifths as long as the fifth. 

 Male terminalia apparently rotate, nearly one-half to 

 the right. Hypandrium short, the cavity widely open 

 and exposed. Epandrium large, scooplike and undi- 

 vided. Female with a row of obtuse, concave spines on 

 the acanthophorites. The ventral plate or eighth stern- 

 ite has compressed, V-shaped, cleft, medially apically 

 produced portion. 



Distribution: Australian: Paraterpogon punctatus 

 Paramonov, in litt. 



Genus Saropogon Loew 

 FiGtrKES 157, 157A-E, 1S6, 559, 1160, 1169, 1774, 1855, 1993 



Saropogon Loew, Linnaea Entomologica, vol. 2, p. 439, 1847. 



Type of genus: Dasypogon luctuosus Wiedemann, 1820. 



Designated by Coquillett, 1910, the fourth of 4 species. 

 Sarapogon Williston, Trans. American Ent. Soc, vol. 18, p. 74, 



1891, lapsus. 



Saropogon has 1 subgenus, Lycomax, new subgenus. 



Medium size flies with the marginal and all of the 

 posterior cells widely open, the anal cell widely open or 

 narrowly closed. The general coloration is often pale, 

 sometimes blackish. Generally the face, which is never 

 prominent, usually plane, is without pile or bristles, 

 except on the lower third or less and they are often con- 

 fined to the epistomal margin. Femora often with 



