AST. 6. ASIATIC MUSCOID FLIES ALDRICH. 6 



Length of male, 6.2 mm., of the female 5.4 mm. 



Described from one male from Mount Salak, Java, collected May 

 15, 1909, by the Bryant-Palmer Expedition. Mr. King reared sev- 

 eral specimens in Koiwai, Japan, from PopilUa japonica, of which 

 2 males and a female are in the United States National Museum. 

 A female specimen has also been received from Rev. D. C. Graham, 

 collected by him at Shin Kai Si, Mount Omei, Szechuen, Western 

 China. 



Type.— Mule, Cat. No. 22209, U.S.N.M. 



Mr. King states that this species deposits maggots. 



CENTETER/ new genus. 



Head in profile shorter than high the front prominent, almost 

 horizontal to the antennae in the male, in the female curving but 

 little downward to the antennae, which are therefore very high up. 

 Below antennae the profile curves gently backward and is very long, 

 the oral (ventral) portion of the head being short; back of head 

 not bulging, almost straight. Eyes bare, small, the bucca (below) 

 equal to half the ej^e-height. Parafrontals and parafacials wide. 

 Antennae long, the third joint five times the second, arista with 

 short basal joints. Facial depression long, narrow and deep, the 

 long and prominent ridges provided with strong bristles almost to 

 the arista, vibrissae a little above mouth, two bristles below them. 

 The facial depression is less than twice as wide as* one parafacial, 

 and has a low median keel for its whole length ; ridges not convergent 

 toward oral margin. Proboscis short and fleshy, palpi normal. Ocel- 

 lar bristles well developed, diverging forward ; frontals about 8, the 

 upper not enlarged and reclinate, the lowest at the middle of the 

 second antennal joint. Parafrontal with small uniformly scattered 

 hairs, which continue on the parafacial in a narrowing space next 

 the ridge, as far as the last third of the third antennal joint. Bucca 

 bare except on lower edge. 



Thorax of ordinary structure, with the following chaetotaxy: 

 Acrostichals, 3 anterior, 3 posterior ; dorsocentrals, 2 anterior, 3 pos- 

 terior; humeral 3; presutural 1 large; interhumeral 1; notopleural 

 2; intraalar 3; supraalar 3; postalar 2; sternopleural 2 anterior, 1 

 posterior; pteropleural 1 small; mesopleural 5 in posterior row. 

 Scutellum with 4 lateral, 1 discal, and 1 minute apical (in female). 



Abdomen normal, no piercer, no discals, first to third segments 

 with marginals, weak in females. Legs normal, fore tarsi of female 

 not flattened. Wing with fourth vein rounded at bend, thence slightly 

 concave, ending only a little before apex. First vein bare, third with 

 two or three hairs ; apical cell narrowly open. No costal spine ; third 

 costal segment about four-fifths as long as fifth. 



' Greek KtvTtrtp one who spurs or goads. 



