13. DIOCTRIA 733 



flflvT?f''i ^'^-If-i ^^^^*.^"""^ ^«^^S-l^ but almost bare ; metanotum consider- 

 ably dusted with brownish orange at the sides 



shot^1r'r'',fhornlvr''''l°'°'''ii^^^'''' ^1^^-*^^" intersegmental membranes 

 show up rather obviously yellow and in connection with them the 

 sides of the hindmargins are often somewhat indistinctly orange the 

 abdomen bears minute black bristly pubescence all over, but ?h^ basal 

 segment bears in addition several short black bristles on the sides and a row 



st: Bellv wilf S^'' l'^ ^°'^-- 'l^^^^^ '"^'^-^^ ^'^"-^ '^'^ Mndmargin near each 

 sicle iJely with the brownish orange incisures shining through rather 



widely while when seen from below the actual sidemar|ins appfar rather 

 brownish orange Genitalia ordinarily with a shining black br?acl upper 

 pla e which IS produced at each<ind corner into a broad subtriangular proS 

 ^Ji'S:^^^^^^:--^ '''^'^' --^--^ P-t« ^ lateral LiellS 

 Legs stout and strong, moderately short, shining black with the knees 

 narrowly reddish orange ; coxae at the tip and the trochanters wholly chest- 



co spi^ou itdiCd^' P^ t'^""'"^ '° ^^P ' ^^f^^^oint of the hind tarsi not 

 conspicuously di ated Pubescence on the anterior coxaj dense, rusty black 



bkck^K^a^itT Wp^'r'?"''^''^lr^t "^ ^^? "^'^^1^ pair' is bSliinti; 

 Dlack and quite b^ire ; hind coxaj with shorter inconspicuous pubescence • 



an erior femora with a few ong hairs beneath close tS the base -tie fur?y 

 pubescence beneath the hmd femora is very dense and extensive consp^cu 

 nlt/tl!lZt^t\^' ff "^'// a few. long thin, whitish hairs i'ntermS 

 but is darW Jhil li . ^'"'.t*^ .^^' ^'°^ ^^'^^^ ^' al«« ^^"«e a^d extensive 

 foi. ^.1 ^- ^^^^ "^^ ^^^ femora. Bristles rather few in number • 



loTsaTbSkne/rJrT'P'^^^^^ P'^'^P^^^^ "?^^ ^ ^^°"^ tibia, with one^mali 

 c oisa bristle near the base, one or more 1-3 inconspicuous slightly antero- 

 dorsal, one or two very tmy anterior after the middle, four strong posterior 



aS cSit Von7/^^- '^il''l^ ^°"-^ Postero-ventral hairtan? ?hf usual 

 apical circlet ,_ front tarsi with the usual circlets of bristles and with the 

 tiny dorsal bristles rusty black • middle tibia, with two antero-dorsarbristles 

 one at and one after the middle), two antero-ventral (one at a thTrd and one 

 at three-quarters , four posterior, and three rather long equidistant postero^ 

 ventral, besides the apical circlet; hind tibia, with about two sua 1 anterior 

 bristles (one sometimes accompanied by a still smaller one^just before X 

 midd e, and he other (a stronger one) at about three-quarters V^and four small 



Pulvfliiand ;r^n^• 'P^'"^ "^''^'V' ^^^^^^^^^ '^''^ ^^^^ the' usual brisS 

 Pulvilli and empodium orange ; claws conspicuously orange on the basal half 



Wmgs proportionately short, being distinctly shorter than the abdomen 



?est E f rV" ^^^^^'^ *.^°^S'^ r^^^ t^^ ba«al ^alf ^^'^'^ blacker than the 

 rest, but the boundary between the blackish base and the rather washed out 



outer and hind margins not well defined ; third posterior cell wider at the 



wmg-margin than the second or fourth, as the fourth (though varyin' much) 



IS usually a little narrowed . stem of the cubital vein shorter (thoSVZfng 



much m amount) than the fork ; anal cell also varying from well open to Cm 



one female) practicaly closed. Alar squama, blackfsh or TrtyTrante or 



yellow, ^ylth a thick yellow margin on which is a long dense brown ol 



yellow fringe which is however less dense near the alul* • thoracal mi>on?v 



indicated by a brownish orange line. Halteres yellow to browSsh yeSow ^ 



or'^mle vel W^JhiS \''\ \\' ^%^- ?^i^^e^i"g brightly with beautiful golden 

 small faopbJ.,rnffr ^^^ '^?'°^ black portion just under the antenna 

 small face-beard of the same colour as the face ; chin- and i owl-beards pile 

 ^eyisli- bristles and hairs on the back of the head with^an orange Ce 

 ralpi with brownish orange hairs. ^id-n^^ uue. 



fT..f ^?'''''' ^^'^i I^*" '1^"^*" '1'°''^ depressed pubescence so brownish yellow 

 that It somewhat conceals the black ground colour and gives the wholl 

 dorsum a rather greyish brown appearance, but with threl brownfsh ashy 



bn7bnv P H ' •"'™ f'' "^^^^^"^' °^ ''^''^' '^'' ^wo outer ones are the broadest 

 but have their outer margins not well defined and the two intermediate 

 shmmg black ones are bare and impunctate ; the usual shining bSsfde 

 spaces less distinct- postalar calli often rather chestnut- prS'sutural and 

 supra-alar bristles Wownish orange ; pleura with the si immerin 



stripes 



