DASIPOGONINAB 



ROBBER FLIES OF THE WORLD 



109 



equally wide to the end of the fifth segment. Abdomi- 

 nal pile short, erect, microscopic, fine and longer on 

 the sides of segments one and two. There are eight seg- 

 ments present; beyond the fifth segment the abdomen 

 is slightly narrowed to blunt, obtuse apex. Male with 

 hoodlike, notched epandrium, small, short gonopod, 

 and apieally rounded hypandrium. Female with 4 

 pairs of quite short but distinct dorsal spines. 



A series of individuals of a Cryptopogon species was 

 collected on the sandy beaches below Brisbane, Queens- 

 land by the author in October 1953. Some of these 

 individuals lacked the extra crossvein on the wing. 

 Since the flies are so very similar to Stichopogon, the 

 status of Cryptopogon must be considered weak. 



Genus Eremodromus Zimin 



Figures 2509, 2510, 2530 



Eremodromus Zimin, Bull. Inst. Zool. Appl. Phytopath. Lenin- 

 grad, vol. 4, p. 21, 1928. Type of genus: Eremodromus noc- 

 tivagus Zimin, 1928, by monotypy. 



The following is Zimin's description in translation : 



The antennae stand near or close to the upper border of 

 the mouth; the front on its upper half is covered with white 

 bristles; pulvilli absent, claws straight; the fourth posterior 

 cell is stalked or petiolate ; the fork of the third vein is behind 

 the distal end of the discoidal cell, the latter is relatively short 

 and sends to the wing margin 3 veins ; the third antennal seg- 

 ment is (without bristle) shorter than the second. 



Distribution : Palaearctic : Eremodromus noctivagus 

 Zimin (1928). 



Genus Turkmenomyia Paramonov 



Turkmenomyia Paramonov, Mem. Acad. Sci. PUkraine, vol. 15, 

 p. 335, 1930. Type of genus: Turkmenomyia gracilis Para- 

 monov, 1930, by original designation. 



The following is Paramonov's description in 

 translation : 



In their entire habitus and their structure very similar to the 

 genus Stichopogon, although it is very closely related to the 

 genus Eremodromus Zimin, 192S. It is distinguished from the 

 genus Stichopogon by the fact that (1) the pulvilli are wholly 

 rudimentary, (2) claws very long and only slightly curved, (3) 

 mesopleuron with bristles, not strong, but quite clearly visible; 

 with Stichopogon the bristles are only sometimes suggested, 

 (4) the bristles of the legs are relatively numerous, more or 

 less erect and longer than in Stichopogon. Besides, the species 

 gracilis n. sp., which I consider the type of genus has on the 

 under side of the third antennal segment 4 very long yet thin 

 bristles. Everything else is as with Stichopogon. From Eremo- 

 dromus it is distinguished only through the antennal structure 

 and it is to be noted the third segment is definitely longer 

 than the sum of the first two segments together while in Ere- 

 modromus it is definitely shorter than that of the second seg- 

 ment. Besides the antennae in Eremodromus stand still closer 

 to the mouth border. 



Distribution: Palaearctic: Turkmenomyia gracilis 

 Paramonov (1930) ; nigrita Paramonov (1930). From 

 Transcaspia. 



This genus appears to certainly belong to the Sticho- 

 pogonini, although Paramonov has not commented on 



the presence or absence of the three definitive char- 

 acters of the tribe, which are the extraordinarily wid- 

 ened front and vertex, greatly recessive ventral eye 

 margin with exaggerated occiput, and the absence of 

 pile from the lateral metasternum. 



Since these flies, as well as Eremodromus Zimin, both 

 lack pulvilli, they should prove related to Rhadinus 

 Loew, also a member of this tribe and without pulvilli. 

 The extremely low-set antenna of Eremodromus with 

 its clavate hind femur and the ventral, bristly hairs of 

 the third antennal segment in Turkmenomyia should 

 offer a ready means of identification of these two flies. 



Genus Neopogon Bezzi 



Figubes 450, 932, 941, 1917 



Neopogon Bezzi, Ann. Mus. Nat. Hungariei, vol. 8, p. 147, 1910. 

 Type of genus: Dasypogon trifasciata Say, 1823, by original 

 designation. 



Pollinose flies of medium size, characterized by the 

 single row of close-set bristles on the epistoma. The 

 antennal style is as long as the third antennal segment 

 and supraalar bristles are absent. Closely related to 

 Stichopogon Loew, they are much larger and average 

 two or more times the size of that genus. In Neopogon 

 the vertex is even wider than in Stichopogon. Length 

 10 to 15 mm. 



Head, lateral aspect : The head is comparatively long, 

 the face straight or plane in profile rather prominent 

 below, with extensive cheeks ; at the base of the antenna 

 plane with the eye. The eye is strongly convex ante- 

 riorly, markedly recessive anteriorly on the ventral 

 portion, leaving the occiput exposed. The upper oc- 

 ciput is well developed medially, everywhere pollinose 

 with thin, fine pile, and with a transverse row of 7 pairs 

 of stout bristles across the upper portion, which bristles 

 are located well behind the ocelli. The proboscis is 

 robust, directed downward or forward and extended 

 well beyond the face but not beyond the mystax. It 

 is quite blunt, with short, fine pile ventrally near the 

 base and with a low dorsomedial carina. Perhaps of 

 two segments, the basal segment minute, short, the sec- 

 ond segment tapered, porate, obliquely truncate, with a 

 few, fine hairs apieally. The antenna is attached near 

 the middle of the head. The first two segments are 

 short, stout, subequal in length. The slightly attenuate 

 third segment is not quite twice as long as the first two 

 segments and bears a stout style with apical spine fully 

 as long as the first two segments. 



Head, anterior aspect : The head is moderately wide 

 with the face narrow at the base of the antenna and 

 rather strongly divergent below. The face and cheeks 

 are densely micropubescent, the former with a few scat- 

 tered appressed hairs and a mystax composed of a single 

 row of long, close-set, stout, flattened, bristly hairs 

 presenting a matted appearance. Subepistomal area 

 horizontal, pubescent. The front and vertex are 

 strongly divergent and rather deeply excavated, pol- 

 linose, with a few. fine, erect hairs. The ocellarium is 



