niP'1'EHA 



27- 



29. 



3o. 

 3i. 



32. 



33. 

 34. 

 3,5. 

 36. 



37- 

 3.S. 



3o. 



40. 

 41. 



4^- 



43. 



44- 



P. timiipalpis, lieckei . .\h\\. /ool.-hol. (ics. Wien. \dl. i, \i. 29 (igoi) (Europc). 

 P. olympiac, Aldiich, Trans. .Vmer. lint. Soc. Vol. 29, p. 344 (11)04) (^ • ^- ■■^■)- 

 P. »/iai-a, .Meigen, Syst. Beschr. \'o\. 0, p. 216 (i83o) (Europc). 



perennis. Meigen, idem, Vol. 7. )>. 412 liS38). 

 P. pachviieiira, Loew, Centuria 7, p. 52 (i866)(U. S. A.). 

 /-". palposa. Zftteistedl, Dipt. Scand. \'nl. 7, p. 2870 (iS^.S) (luiiopej. 

 P. papiiaiia, Brues, .\nn. Mus. Nai. Iluiif,'. Vol. 3, p. .^41 (igoj) (Nevv Guinea). 

 P. scutellata, Brues, Trans. Auier. lint. Soc. \"ol. 29. ]>. 344 (1904) (Wcst Indios). 

 P. sinensis. Schiner, Novaru. Keise. Dipt. ]>. 224 ( i868| (Hongkont^^. 

 P. sororcula. \an dor Wulp, Tijdschr. v. ICnt. \'ol. 14, p. 209 (Hnlland 1. 

 P. spinipes. Cociuillott, Canad. Ent. \'oI. 27, p. io5 11895) ^U. S. .\.}. 

 P. spinosissima, Strobl. 1'horideii Ocsterr. i). ig6 (1893) (Europe). 

 P. Strobli. Becker, .Abh. ^ool.-bot. Ges. Wien Vol. i. p. 36 (1901) (Euiopo). 

 P. thoracica, Meigen, Class. \'ol. i, p. 3i3 ( 1S04) (Euiope, U. S. A.j. 



dimidiiila, Meigcii, Syst. Beschr. Vol. 6. p, 2i5 (i83o). 

 P. trineivis. Beckor. .Abh. Zool.-bot. (ies. Wien Vol. l, p. iqdqoi) (Europo). 

 P. unicalcarata, Beckor, idein. p. 32 (1901) (Europe). 

 P. iinispiiiosa, Zetterstedt, Dipt. Scand. \'ol. 14. y. 6473 (i.s38) lEuropo). 



disliir^iienda var.. Strobl, Phoriden Oosterr. p. 19.S 1 189.^1. 

 P. itrbaiia, Meigen, Syst. Beschr. \'ol. 6, p. 2i5 (iS3o). 



caliginosiZ. Mei^on. idcm, p. 214 liS3o). 



/M)f/;<in/mj/,;. Zetterstedt. Dipt. Scand. Vol. 12, p. 4822. 

 /-". venusta, Co<]uinelt. tan.id. lCiit. \'ol. 27. p. 107 (iSgS). 



2. Genus HYPOCERA, Lioy 



Hypocera. Lioy. .\tti. Inst. \'cnet. p. 78 (i.Sb^). 

 Gymnoptera. L)o\ . idom. p. 79. 



Characters. — Body stout, similar to Phora iii ijeneial appoaranco. Ilead homispherical 

 occasionally produced on the veitex in the male. Erontal bristles 12 o) 1 | in Dumber, the anterior pair 

 reclinate. When there are twelve, either the two anterior ones, or the mcdian )iai) of the next row above 

 may be \santing. .Antenn» variable, usually ovate or oval, with a dorsal arista. Init i)i siuno )nales they 

 are elongated and dra\v)i out into a poi)it. with a suli- apical a))sta. l']ont sonicti))ies with an ocoUar 

 tubercle 1» frontal groove. Thorax large, the scutellum wide. Lcgs usuall\ w ith bristles on the outei side 

 beforo theapex, generally one on the fore tibia, tvvo o)i the )niddle, one. t\\<i, oi' )iono on thc lii)id tibia. 

 Pulvilli and empodia <Iistinct. Wings laige, the thiid longitudinal voi)i snnpU-. ))iit tuicato, but often 

 swollen at tho tip, occasionally soparate or impcrfectly fuso<l w itli th<' costal v<.|)) at tli<' tip, so)n<'limes 

 bristlv or strongly hairy. Costal vei)i ciliate<i willi bnstlcs, iiKMliastinal v<-in dislinct, seventh \eiii 

 present, anal anglc of vvi)ig at its xiot b)istlv. ( )\ ip. isito) of l<Miial<' soft, nnt hiMvily chitinize<l 01 

 s])ear-shaped. 



Type species : //. mni ilclhiyni . l';ill<')i. 



Geographical distribution of species. — l-ourtooi s]io<-)os liave tluis l.n IxM-n <l<-s<) ib<'<l, all 

 from Nortli .\)nerica an<I luirope except a single Ioito from Novv (iniixa. 



1. H. ai;ilis, Meigen, Syst. Beschr. \'oI. (>, )>. 2i3 (i83o) (Euioi^e). 



carinifroiis. Zetterstedt. iJipt. S<-an<l. Vol. 7, )>. 2SS5 (1848) inon c') iEuroi>e). 



2. H. Bernuthi, Egger, Verh. Zool.-bot. Ges. Wien Vol. 12, p. 1234.1862). 



3. H. carinifrons, Zetterstedt, Dipt. Scand. \'ol. 7, p. 2.S,S5 (1848) cf (non Q) (Eunjiie). 



4. //. cilrciformis, Becker, .\bh. Z<iol.-bot. (ies. Wien Vol. i, p. ^3 (i<ioi) (Euro]ic). 



5. H. clavata. Loew, Centuria 7, ]>. 5i .1866) (U. S. A.). — Plate I , Fig. 2. 



6. H. coronala, Becker, .Abh. Zool.-bot. Ges. \\'i<'ii \'ol. i, ]). 41 (looi 1 (I^Droix-i. 



