AXONA. 223 



prominent. Prons in $ ratliei" broad, widening gi-aduully from 

 vertex. Face moderately cut away below antennae; central bump 

 moilerately large, inouth-border also prominent : proboscis rather 

 long in the type-species, shorter in A. ojanea ; labella large. 

 Antennfe very short, 3rd joint round, arista bare. Thorax sub- 

 quadrate, normal. Abdomen a little longer than thorax, obcoiiical 

 in chalcopygus, nearly conical in cyanea^ Legs rather slender, hind 

 femora without processes or spines below. Wiiuis moderately 

 broad (cyfoi^rt) or narrow (cha I co2>i/gKs); tip ratlier pointed; 3rd 

 vein deeply looped downward ; anterior cross-vein just beyond 

 middle ot discal cell, oblique, curved. 



Range. The only two known species are Oriental. 



17"). Axona cyanea, Bnin. (PI. \ , tig. 10.) 



A.vona cyanea, Brunetti, Rec. Ind. Mus. ix, p. 272 (191.j). 



S 2 ■ Head set closely on thorax. Eyes in S touching for a 

 considerable space, chocolate-brown, upper facets distinctly larger 

 than lower ones. Vertical triangle small, black, svith a little 

 black pubescence ; ocelli red. Froiis rather prominent, brilliantly 

 shining violet, with soft black hairs. Face brilliantly shining 

 violet, distinctly prominent, cut away below anteniife and pro- 

 duced over mouth-opening, provided on each side of the latter 

 with a small blunt point. Mouth- parts concealed, blackish. 

 Antennse blackish-brown, 1st and 2nd joints short, normal, with 

 a few short bristles, 3rd rounded, dull, with basal brownish- 

 yellow bare arista (the latter under high microscopic power being 

 seen to benr a few pale hairs towards the base). Occiput black, 

 hind border of eyes narrowly margined with grey tomentum. In 

 $ , head nearly similar to that of cJ , the frons being one-fourth the 

 width of the head, barely wider at level of antennae ; face 

 moderately projecting, with two equal-sized bnmps, not extending 

 l)eyond the antenual protuberance ; both frons and face are 

 shining violet-blue. Ihora.v, scutelluni and abdonien shining 

 violet-blue, all covered with short stiff black hairs. A'^enter dark 

 with bla'-k i)ubescence. LegshXaak with violet-blue tinge; hind 

 femora rather flattened and considerably deepened until just 

 before the tip; no liristles or spines are obvious. Jlind tibiae 

 barely curved and with a slight peculiar thickening in the middle. 

 All the legs with short soft black ])ubescence, tarsi with a little 

 goldon-brown pubescence on under side ; claw^s and pulvilli well 

 developed. Wings clear, rather jjointed, iiiargiiuil cell almost 

 closed on the border; anterior cross-vein immediatelv beyond th« 

 exact middle of the discal cell, slightly sloping; 6th longitudinal 

 (anal) vein continued almost to the wing-margin, nearlv straight. 

 Alulae large, thoracic squanue rather large, dirty white with lather 

 thick dark fringr ; halteres very small, brii^lil velloa-. 



Length, ^ I mm. 



Described tVom a single perfei-t J, Singla, Djrplinij. Api-il 



