AUT.IT. NORTH AMERICAN PHOROCERA— ALDRICH AND WEBBER. 51 



vein; none have discal abdominal bristles; all have four dorso- 



'' The^following table contains three species-t'inE., cocciphih and 

 divisar-v^hich are not included in the preceding general table of 

 Phorocera, they having been obtained after it was completed. 



TABLE OF SPECIES. MALES. 



1 Pollen of abdomen confined to dorsal surface except anteriorly, the third 

 and fonrth tergites shining below and showing a sharp line of dm- 

 sion at the side : bristles of mid coxae and region just anterior verj ^ 



Tinmerous forming a dense recurved bunch — 



Pollen of the dorsuni Of third and fourth abdominal segments contmuing 

 toward the middle line below without a sharp break at the suie: mul 

 coxae and adjacent region without unusual number o bristles.,.- 4 

 .. Palpi strongly infuscated at base, -^^J -J^ ^rer'^d Bergenstam.. 

 P-ilDi yellow at base, second antennal joint reddish-yellow — - 3 



3. Poll^iol front and fkce golden, pollen of fourUi ^^^-in^ se,.nen^ -- 



ering much more than half its upper surface -^ \ J,,.^,. 



P„T,r/o, .vent »„« face ,vM.e, poUen ot .ounh ^'-^:^:^^Z^n.. 

 ering less than halt 5 



4. With a distinct fold at bend of fourth vem_- _ ^ 



Without fold at bend of fourth vein ""T:": _ 6 



• ss : =; s: :,■::,:=,■=,-'» ;-—.-= , 



Antennae with second segment red l»lP' "''''™ *'„^pennis Macquart. 

 ,Mments 2 3, and i with anterior halt pollniose— -Olaripennn. u 

 , ThTontl bristles weaK; the two n„per recllnate "™f ; -- ' ^^l^,^ 



,„e arista ; the united Inner forceps flat and broad '« ;_;;--^-*«^,,,, 



.,:' t;::i",:trr:;;d";tr:S7^he--™.-ed- i^^^^^^^^^^ .-.-- -- , 



formly into a rather ^'"^^rX:;^::^^^^^^^^^^^- 



8. Second abdominal segment with lon„ erect ^^j^ijens, new sl«ies. 



Aiiiu TP^ion- '^niall slender species "" ' 



S*:; abdlina, segment with hairs barely longer t''- »;• "« f ;;^.,,. 

 segment; robust tropical species j ^q 



9. Sternopleurals 2 _—-— ^- 



Sternopleurals 3 7"~~~I~f^ cf rvinklv hairs bent 



10. The united inner forceps bearing a dense tuft of cimkiy na^ s^^ ^ ^^ 



forward "rH," n'nlv'a'fringeof minute brownish hairs 



The united inner forceps with only a fim«e „,,, .^eoies. 



around a central shining, bare Pl^t^":— ;.".;-:' .^..^e base 

 n. The tuft on the united inner forceps begins at the -^-.^ ba.^^^ ^^^^^^ 



The tuft on the united inner forceps begins considerably beyoncUb-x- ^^^^ 

 trerae base; beak very small 



