212 DOLICHOPIDiE. 



plumatis atris, alls Jiyallnis, vena prcehracldali flexa in apice excnr- 

 rente, ibique cum ciibitali paululnm converg-ente, transversa in medio alee 

 sita ; Mas. tJiorace cinereo vittis iluabus obscurioribns, pedihus auticis 

 longisslmis ; I'oem. tliorace ferriujineo. Long. 2i; alar. 4^ lin. 



Head cinereous behind. Pace and front white. Antennse yellow. 

 Thorax in the male cinereous above with two darker lines, in the female 

 ferruginous with sometimes a cinereous spot before the scutellum, which 

 is yellow, with the base dusky in the male. Metathorax entirely 

 cinereous. JFings hi/aline. Abdomen ferruginous, with the base of 

 the segments blackish, forming transverse bands, which in the female 

 are broader and notched behind at the middle so as to be almost 

 interrupted. Hypopygium of the male black. Legs pale yellow ; in 

 the male the first two joints of the fore tarsus very lomj and slender, the 

 rest short, the third and fourth dusky f ringed at each side ivith black 

 bristles, the fifth joint tohitish. 



Rare. In Mr. Haliday's collection. (E.) 



5. aulicus, Mg. zw. iv. 48. 6 (1824) ; Ztt. — Fcem. vividus, Mg. 

 Thorace cenescente, fronte cyanea, hypostomate albido, antennis capite 

 transversa pa.ulo brevioribus nlgris, abdomine ferrngineo, fasciis quatuor 

 obscuris, pedibus pallide flavis, tarsis fiiscis, alis subhyalinis, prccbra- 

 chiali levissime fiexa in summo apice excurrente, cubitalique subparallelis ; 

 Mas. hypostomate angustissimo argenteo, antennis capite paulo tantum 

 brevioribus, metatarso postico intus in medio subexciso et fascicule 

 spinularum armato ; Fcem. hypostomate latiore cano, antennis cajjite 

 fere dimidio brevioribus, metatarso postico breviter pubescente simplici 

 et inermi. Long. 2-1- ; alar. 5 lin. 



Head brassy-green, duller in the female. Front blue. Face white, 

 of the female hoary, concave under the antennae. AntemuB black ; 

 third joint short, deeply notched at the base, receiving the tip of the 

 second ; arista deflected before the tip. Thorax brassy-green, duU in the 

 female ; scutellum bluish. TFings almost hyaline ; discal transverse vein 

 distant by little more than its own length from the hind margin. Alula 

 with a narrow black edge, the fringe yellowish in the male, blackish in 

 the female. Abdomen pale yellow with dusky incisures, transparent in 

 the male, with the small hypopygium not prominent ; in the female 

 usually brownish above. Legs pale yellow ; middle coxse grey outside ; 

 posterior femora with more than one spine about the tip ; tarsi dusky, 

 except the base ; hind metatarsus sJ'orl, notched below in the male, with 

 a tuft of bristles before the notch. — Allied to Rhaphium pallipes, &c., 

 more than to any other gioup, though the antennee are so short even in 

 the males. 



Not rare. (E. I.) 



6. bicolorellus, Ztt. d. s. 617. 104 (1843). Thoracis postici 

 itnpressi dorso nigro setoso, scutello fronteque virescentibus, hypostomate 

 alba, atitennis brevissimis testaceis apice fuscis, abdomine pedibusque albo- 



