DASTPOGONINAB 



ROBBER FLIES OF THE WORLD 



35 



the first and second and to a lesser extent on the third 

 tergite. Male terminalia rather short, rotate one-half, 

 the hypandrium short. 



I have seen only a male, and have placed the species 

 in the Dioctrini provisionally. Should the females 

 prove to have spiny acanthophorites, this genus will 

 fall within the Dasypogonini. 



Distribution: Ethiopian: Hermannella engeli, new 

 species. From Rhodesia. 



Hermannella engeli, new species 



Rather small, dark reddish brown flies with very 

 short pile. Readily recognized by the peculiar an- 

 tenna. The first antennal segment is more than three 

 times the length of the minute, second segment. The 

 third segment, with microsegments excluded, is about 

 214 times the length of the first segment and it bears 

 2 wide, conspicuous microsegments flattened and each 

 of about equal length and breadth. Pile of head and 

 thorax pale. Length 12 mm. including antenna. 



Type. Male, Rhodesia. In the collections of the 

 British Museum (Natural History). This individual 

 bore the name Myielaphus pardalinus Engel, which is 

 apparently a manuscript name as I can find no evidence 

 that it has been published. I take pleasure in naming 

 the species in honor of Dr. Engel and of the monu- 

 mental and valuable studies of Palaearctic and Ethio- 

 pian Diptera which he completed. 



Genus NerterJw.ptom.enus Hardy 



Figubes 2518a-e, 2521 



Nerterhaptomenus Hardy, Proc. Linnean Soc. New South 

 Wales, vol. 54, p. 359, 1929. Type of genus: Nerterhapto- 

 menus morus, 1929, by Monotypy. 



I was unable to see the type, and, therefore, quote the 

 original description : 



A brownish species with the head, pronotum, pleura, coxae, 

 and venter coloured ashy grey. The antenuae have five clearly 

 defined segments, the third long, the fourth shorter than the 

 fifth, at the apex of which is a small spine. The face has rather 

 scanty white bristles forming a moustache, but it is without an 

 apparent tubercle. The bristles on the frons and antennae are 

 mostly black; those elsewhere and the hairs are white, includ- 

 ing the postoculars and the beard. 



The thorax has a black area near the head, and this continues 

 as two black median stripes that do not extend beyond the 

 transverse suture ; on each side of this marking is a large black 

 spot. The bristles of the thorax are weak, but the two white 

 presutural, one supra-alar, and one post-alar are detected on 

 each side. The dorsocentrals are not to be detected and the 

 scutellum is hare. The metapleural bristles are well developed, 

 but the hypopleurals are absent. The metanotum is bare and 

 the metasternum is narrowly separated from the intermediate 

 coxae. The prosternum is contiguous with the pronotum, being 

 separated by a groove. The rather typical shaped plate adjacent 

 to the anterior coxae can he traced in part, but contains a bridge 

 comparable to that found in the Ommatiini. 



The second segment of the abdomen is short and about the 

 same length as the third. The sixth, seventh, and eighth seg- 

 ments are black and strongly depressed in the female, and are 

 of equal length. On the male the abdomen is somewhat club- 

 shaped, as it swells out between the fifth and seventh segments. 



The ninth tergite is emarginate at the apex and the upper 

 lamella is divided, making three lamellae. The claspers are 

 hinged and the aedeagus is short as if stunted. 



The brown legs are more or less stained with black in parts, 

 and there is no spur on the anterior tibiae. The hind metatar- 

 sus is strongly swollen. The bristles are poorly developed on 

 the femora and show no marked characters. The wings have a 

 simple venation, with the cubital and anal veins coalescing 

 close to the wing margin, and the radio-median cross-vein is 

 situated well before the middle of the median cell. Length 

 13 mm. 



Distribution: Australian: Nerterhaptomenus morus 

 (1929), Brisbane, Queensland. 



The long, drawn-out ovipositor of the female is of 

 a generalized type. All aspects considered, the rela- 

 tionship of this fly appears to be with the Dioctrini. 



Genus Pritchardia Stuardo 



Figures 22, 45, 422, 809, 818, 1020, 1029, 1659, 1S84, 1909, 2002 



Pritchardia Stuardo, Catalogo de los dipteros de Chile, p. 80, 



1946. Type of genus: Dasypogon hirtipes Maequart, 1838, 



by original designation. 

 Strobilopygius Hull, Bull. Brooklyn Ent. Soc, vol. 51, p. 70, 



1956. Type of genus : Dasypogon hirtipes Maequart, 1938, 



by original designation. 



Flies of medium size or smaller, of dark coloration 

 and sparsely pilose. The lower two-thirds of the face 

 is strongly protuberant, with many long bristles. The 

 legs are stout and bristly. The abdomen is tapered, 

 but rather wide at the base and distinctly flattened ; the 

 fourth posterior cell is closed. These flies suggest 

 Hypenetes Loew in appearance, differing sharply in the 

 not attenuate, third antennal segment and the absence 

 of spines on the female terminalia. Length 12 mm. 



Head, lateral aspect : The face is strongly convex and 

 protuberant, but the protuberance is restricted to the 

 lower two-thirds, leaving the upper third barely visible 

 in profile. The occipital bristles are weak in the mid- 

 dle, becoming stronger near the vertex, where they 

 are strongly proclinate. Proboscis short, stout, held 

 almost horizontally, slightly compressed laterally. 

 Palpus clearly of two segments; first segment hemi- 

 cylindrical and excavated ; second segment porate, with 

 numerous, fine, long hairs. The antenna is short, the 

 first segment nearly twice as long as the second and 

 both with abundant, rather long pile dorsally, laterally 

 and ventrally. Third segment strongly swollen dor- 

 soventrally, laterally compressed, and narrowed only 

 at base and apex. 



Head, anterior aspect: The face has numerous, ex- 

 tremely long, stout bristles directed for the most part 

 forward but slightly downward, the upper bristles 

 more or less curved, the greater portion of these bristles 

 spread out as a triangular patch on the anteromedial 

 part of the protuberance. Long bristles are also pres- 

 ent on the lateral margin of the subepistomal area. 

 The front is strongly divergent in the middle, but 

 slightly narrowed at the vertex; it bears numerous, 

 fine, long, erect hairs, which are especially long and 

 stout at the vertex. The ocellar protuberance is low, 



