72 Phoridae. 



they are rarely small ; the lowermost of them is generally miich larger 

 than the others; further there is, as a rule, some smaller or larger 

 bristles at the sides of the oral aperture below the eye, the oral bristles, 

 sometimes there is only one, and further upwards on the cheeks there 

 are generally likewise some bristles, the genal bristles, also here is 

 sometimes only one. The oral and genal bristles are sometimes not 

 distinctly separated, but more or less confluent, and the postocular 

 bristles may sometimes be continued round the lower corner of the 

 eye and upwards, so that no distinction is present between oral and 

 genal bristles as often in Aphiochaeta. (The bristle I term the long 

 lower postocular bristle Schmitz takes to be an oral bristle, and when 

 there is one other oral bristle besides it, he says: "Zwei divergierende 

 Backenborsten", but it seems to me that the said bristle botli by 

 place and direction proves to belong to the postocular bristles.) Eyes 

 large, occupying the lateral parts of the head, rarely smaller; they 

 are of oval shape and hairy, rarely bare {Phora and Pseiidacteon). 

 The antennæ are placed in the above mentioned cavities about in 

 the middle of the head or more or less below to rather near the lower 

 margin; they are six-jointed, the basal joint is small, somewhat 

 cylindrical, the second joint is narrow at the base but with a ring-like 

 thickening just after the base, its apical part is swoUen, more or less 

 globular, but this part is hidden in a large cavity in the third joint, 

 so that the greater part of the second joint is imbedded in the third; 

 the third joint is of various shape, roundish or more elongated and 

 citreiform, or it may be still more elongated, elongately bulb-shaped 

 with a narrow apical part; not rarely the joint is larger in the male 

 than in the female, and the above mentioned special forms are gener- 

 ally present only in the male; the three last joints form a thread-like 

 arista with the two basal joints shorter or longer, generally rather 

 short. The three basal joints, the antenna itself, are short-pubescent, 

 the pubescense on third joint sometimes rather conspicuous; the arista 

 has a shorter or longer pubescence, and sometimes it is longer pubescent 

 in the female than in the male; rarely it is apparently bare. Epi- 

 stoma is a low part below the antennæ, and it is not separated from 

 the frons as there is no frontal bladder-seam nor lunula.^ The jowls 



^ Schmitz says in Wien. Ent. Zeitg. XXXVI, 1917, foot-note: »Das einzige, 

 was man in dieser Beziehung bei Phoriden konstatieren kann, ist, dass bei 

 mit KOH mazerierten Kopfen gewisser Arten, z. B. der Gattung Dohrni- 

 phora, die Chitindecke auf der Grenze zwischen Stim und Gesicht diinner 

 und dårum leichter durchzutrennen ist.« 



