222 



UNITED STATES NATIONAL MUSEUM BULLETIN 22 4 



obscure, narrow, diffuse, blackish stripe that ends just 

 beyond the middle of the mesonotum. Acrostical setae 

 present but short, appressed, and black. There are 

 dorsocentral setae, which remain short even to the scu- 

 tellum and are scanty. There are scattered setae con- 

 tinued laterally over the anterior third of the meso- 

 notum. Bristles consist of 3 rather short, reddish 

 bristles on the notopleuron, 1 darker bristle above the 

 wing, but only setae on the postalar callosity. Margin 

 of the scutellum with a pair of quite small, short, 

 blackish bristles. The scutellum is dark red, compara- 

 tively thin and with flat, wrinkled disc and a rounded 

 margin. Pleuron very dark reddish brown. Meta- 

 pleural bristles blackish and few. Anteriorly on the 

 mesonotum is some scanty, light brownish yellow pollen. 

 Presternum dissociated. 



Legs: The long, hind femur is black almost to the 

 apex, where the color changes rather sharply to pale, 

 brownish yellow; it is a little more brownish at the 

 base. First four femora nearly black, becoming dark 

 reddish brown and then yellowish brown at the apex 

 but rather more diffusely and obscurely. Hind tibia 

 brownish yellow on the basal half, diffusely changing 

 to reddish sepia beyond, and the pile light red or 

 yellowish on the basal half and dark distally. First 

 four tibiae and all the tarsi are everywhere pale, brown- 

 ish with yellow pile, which is abundant but appressed 

 and setate in character. Bristles, where present, red- 

 dish yellow. There are 3 comparatively long bristles 

 ventrally on the outer half of the middle tibia and the 

 dorsal suface of this tibia has 2 short basal, 1 short 

 middle bristle, and 2 longer apical bristles. Claws 

 black, long and sharp, with only the extreme base yel- 

 lowish. Pulvilli long, light brownish yellow. 



Wings: The wings are uniformly tinged with red- 

 dish sepia brown, except that there is a narrow, diffuse 

 streak of lighter brown in the marginal cell just above 

 the anterior crossvein and again at the base of the 

 discal cell and just above the posterior crossvein, which 

 is almost wanting, and also at the base of the first and 

 second basal cells. These areas appear as diffuse, some- 



what lighter colored streaks. All posterior cells widely 

 open, the fourth very slightly narrowed, the anal cell 

 closed in the margin, the wing wholly villose. 



Abdomen : The whole abdomen is very dark reddish 

 brown with the first segment more blackish and the 

 bristles of this tergite black. The pile is minute, flat 

 appressed and reddish. Spines of the acanthophorites 

 are reddish. 



Type. Female, Alpuyeca, Morelos, Mexico, June 27, 

 1951. Collected by P. D. Hurd and in the collection 

 of the University of California at Berkeley. One 

 cotype, same place, July 3, 1951. 



Genus Hynirhynchus Lindner 



Hynirhynchus Lindner, Jhft. Ver. vaterl. Naturk. Wiirteinberg, 

 Stuttgart, vol. 110, p. 32, 1955. Type of genus : Hynirhyn- 

 chus zebra Lindner, 1955, by original designation. 



The following description is from Lindner : 



The genus belongs in the subgroup of the Eremoeneminae of 

 Dasypogoninae. R-l is open, t-1 is without the process curved 

 like a claw. The third antennal segment is provided with a 

 style. The form of the facial beard, as well as the formation 

 of the hypopygium, is reminiscent in habitus of analogous 

 phenomena which are known to us from the subgroups of the 

 Dasypogoninae, which are so polymorphic. 



The genus is characterized by the formation of the proboscis, 

 by the development of the antennal style, the facial beard, the 

 wing venation, and the form of p. 



Head semicircular, front a little sunken. Antennae above 

 the middle of the head. First segment about twice as long as 

 the second, the third flat, with a peculiarly erect [or affixed] 

 flattened style. Facial turbercle not very prominent, with facial 

 beard directed ventrad. Its uppermost hairs stand at the upper 

 limit of the tubercle at a distance from the base of the antenna 

 corresponding to the length of the first segment. Occiput rather 

 padded. Palpus with long bristles. Proboscis of a unique form 

 comparable to a plowshare (fig. 1!). Mesonotum drawn for- 

 ward like a hood. "Scutellum small, with fine marginal setules. 

 p-3 with apically somewhat clavately thickened f-3 and t-3 and 

 a metatarus which is just as thick as t-3 on the end and about 

 twice as long as it is thick. Setation moderately heavy [or 

 strong]. Claws and pulvilli developed. Wing with R-l and 

 the posterior-marginal cells open. Abdomen slender, more than 

 twice as long as the thorax. Hypopygium club-like [or nodular] , 

 curved ventrad. 



Tribe Dasypogonini 



To the Dasypogonini are assigned all those genera 

 of the higher Dasypogoninae, in which the anterior 

 tibia has an apical spine of some several types and at 

 the same time the female has spines on the acantho- 

 phorites. This group contains about 50 genera ; some of 

 its larger groups are represented bySaropogon Loew, 

 Cophura Osten Sacken, a New "World genus with ap- 

 parent relatives in Australia, and Diogmites Loew, 

 the large New World genus of which there is also a 

 possible relative in Australia. In Australia, moreover, 

 there are in this tribe several peculiar genera, such as 

 Brachyrrhopala Macquart and Erythropogon White. 

 In the Ethiopian region there is the large, character- 



istic genus Neolaparus Williston, with a few Asiatic 

 representatives. 



I have not accepted the tribal status given to Bra- 

 chyrrhopala by Hardy (1934) for the reason that this 

 genus is too closely allied to Saropogon Loew and 

 Austrosaropogon Hardy, which in turn are not them- 

 selves separated from Dasypogon Meigen by any wide 

 or embrasive distinctions. The tribe Dasypogonini 

 is entirely sufficient for all these related genera. Tribal 

 status for Saropogon is also not justified because the 

 tribe for this group is properly based on Dasypogon. 



The group of genera in the Dasypogonini charac- 

 terized by the presence of a spine at the apex of the 





