272 XOVITATES ZOOLOGICAE XXI. VM4. 



behind an ill-defined, dark, median, longitudinal stripe is visible on the second and 

 third segments, and there is also a similar bnt l)roader mark on the first segment. 



The male of Wolilfaliitioilc.'i muhi was originally taken at Assnan, Upper Egypt, 

 on camels. 



CALLIPHORINAE. 



Genus RHYNCHOMYIA Kob.-Desv. 



Rhynchomyia callopis Lw. 



{Nme Bcifiiitji: ziir Kciinln. der Di/il. iv. p. 4'.l (185ti) {I<Ua).) 



Two S ? from the Oued Nra, between Guerrara and (ihardaia, iSouthern 

 Algeria, 3-5. vi. 1912 (Dr. E. J. 0. Hartert and V. Hilgert). 



The type of this species was obtained in Egypt. Dr. Hartert's specimens are 

 not tyijical, bnt appear to represent a pale variety, jjerhaps adapted to resting on 

 sand. 



Genus VILLENEUVIELLA gen nov. 



Allied and exhibiting strong superficial resemblance to Oestrinae, and, to the. 



nalted eye, appearing almost bare. Eges separate in both sexes, veri/ wide apart 



in ? ; proboscis greatly reduced in both sexes, and in S minute. Arista bare. 

 Wings with first posterior cell closed before reaching margin and pedunculate, 

 terminal portion (peduncle) of third longitudinal vein, tohich reaches costa a con- 

 siderable distance before tip of wing, relatively long : terminal portion of fourth 

 longitudinal vein forming a very obtuse angle, then almost straight, not concave. 

 Claws moderately elongate and straight in S, curved, and shorter in ? ; puhilli 

 elongate in S , greatly reduced, minute, and scarcely noticeable in ?. 



Head : peristomal margins oblique, jowls descending behind ; facial ridges low 

 and flattened, vibrissae represented by a single minnte bristle on eacli side, epistoma 

 not prominent; face with each antenna resting in a mnssel-shell-shaped depression, 

 the two depressions divided by a low and narrow septum ; frontal stripe narrow in 

 both sexes, sides of front (parafrontals, frontal orbits) very broad in ? , the width 

 of each in centre being approximately equal to seven-eighths of half tlie width of 

 the front ; width of front of c? in centre rather less than one-third of that of ? , in 

 which inner margins of eyes bordering front are parallel ; sides of front down to 

 level to base of antennae sparsely and more or less irregularly clothed with minute 

 bristles, some of which perhaps represent frontal bristles ; orbital (fronto-orbital) 

 bristles absent in S and in ? absent also, or represented on each side by two 

 small bristles only slightly larger than adjacent ones ; ocellar, postvertical, and 

 outer vertical bristles absent in both sexes, inner vertical bristles small ; eyes bare, 

 considerably larger in S than in ? , but facets in S not noticeably enlarged ; buccal 

 cavity shallow and flat ; palpi in S minnte, cylindrical, with a few minute bristles 

 along outer margin, palpi in ? much larger than those of S, swollen, club-shaped 

 or elliptical-ovate in outline, on distal extremity and outer surface bearing minute 

 scattered bristles; antennae rather small in c?,much larger in ?, third joint elongate 

 (in case of genotype about one-and-a-half times as long as second joint in i , and 

 about two-and-a-half times as long as second joint in ¥), and when viewed from in 

 front appearing thick and somewhat swollen in both sexes ; arista fairly long and 

 tapering gradually to distal extremity, first and second joints not elongate. 



Thorax : hair almost entirely wanting, dorsum covered with minnte bristles 

 and also bearing a small number of larger ones ; scutellnm somewhat swollen and 

 without a sharp margin. 



