6G STRA'ilOMYID.T'. 



Odontomyla svbmtUica, Bnuietti, loc. cit. p. 130 (1907). 

 Oxi/cera mdica, Brunetti, loc. cit. p. 119 (1907). 

 ? 0. 2)usiUa, Fabricius, Ent. Syst. iv, p. 271 (1794). 



S $. Head with eyes in S microscopically pubescent, barely 

 contio-uous at nearest approach, and for a very short distance only,, 

 gradnally separating to vertex; irons shining black, with yellowish 

 hairs ; ocelli yellowish ; frontal triangle with yellowish-grey 

 pubescence ; face and underside of head yellowish, with a little 

 whitish pubescence; proboscis large, black; antennae with 1st 

 joint distinctly longer than 2nd, orange-yellow, 3rd brownish, 

 4-annulated, tip black; occiput black. In §, whole head, in- 

 cluding the rather broad postocular orbits, yellow or orange- 

 yellow ; a broad shining black band across vertex from eye to eye, 

 sometimes Avith the appearance of being formed of three large 

 coutiguous spots ; a pair of large oval shining black spots on frons, 

 placecl transversely and slightly diagonally ; a pair of similar 

 smaller rounded spots below level of antennae and just below the 

 larger ones. Thorax black, with very short golden or greyish 

 pubescence ; sides black, a large pale yellow oblong spot below 

 shoulders, another in front of wing-base, the two spots generally 

 connected above; a third yellow spot below wing-base. Scutelluni 

 yellow, base blaek, spines generally extremely small, occasionally 

 normal in size. Abdomen of 6 normally yellowish, with a large 

 rounded or somewhat diamond-shaped spot spread over middle of 

 first two segments ; a si)ot on middle of 3rd segment from anterior 

 to hind miirgin, narrowed behind; on anterior margin towards 

 sides of 2nd segment, a small spot ; a similar larger one on each 

 side of 3rd segment : on 4th and 5th segments a broad band on 

 anterior margin tilling about half the surface, the two bands con- 

 nected by a short median stripe ; all the above markings black. 

 In some "males the marks are reduced to a dorsal row of small 

 detached rounded or angular spots ; in one d" the abdomen is 

 wholly yellowish except for a single small black spot on 2nd seg- 

 ment." In 2 a large spot similar to that of the r? spread over 

 middle of 1st and 2nd segments, with a small spot towards each 

 side in a line with it; sometimes the three spots more or less 

 united by a short connecting stripe ; in one 5 the spots were re- 

 placed by a definite uninterrupted broad band ; abroad black band 

 on anterior margin of 3rd, 4tli, and 5th segments nearly filling the 

 sufraces and sometimes united in the median line by a dorsal 

 stripe. Venter in both sexes mainly yellowish. Lec/s brownish 

 yellow ; femora with a broad median dark browii band ; hind tibiae 

 with a similar band on apical half, generally leaving the lip pale ; 

 tips of tarsi barely dai-ker. Wbu/s absolutely colourless, anterior 

 veins and stigma very pale yellow ; discal cell unusually smalU 

 occasionallv larger in individuals ; discal cell veinlets almost 

 invisible ; halteres yellowish. 

 Lenf/th, 4-5 mm. 

 Described from several specimens of each sex, including types of 



