68 



REPORT ON ECONOMIC ENTOMOLOGY 



Myiomyia nili 



groy 



tlu 



Genus Mvzomyia, IMinicliiucl. (Guassia, Thcubahl) 



Myzomijiii nili. Tlioi)l>al,l. First It.pt. Gmvl. ('..ll. \\\W. Lalw., p. (56 (1904) 



The female of tliis speiies was desirilnil in tlic last rcjiort. No niiiles Imil then been 

 found. Three hiive since been sent iiic by Dr. JiiiUour, but no more females, tliere is no 

 doubt, however, as to the species. 



.\fiili\ Head brown with bright grey sheen, the median upright-forked scales creamy 

 lateral ilark brown, a nuMlian tuft of grey scales between the eyes; antennie 

 bright oehreous brown with deep brown verticiilate hairs, the 

 long apical segments brown, tiie large basal segment deep brown ; 

 proboscis long and tliin, iliij) bitiwn, the scales closely appressed ; 

 paipi (Fig. 31, A) witli tile last two segments swollen, the apical 

 one ends bluntly aiiiniinatc and is about half tlie Kngtli of the 

 penultimate ; tlic palpi arc Innwii except the apr.x on which 

 there are grey scales, there are also golden browii hairs on tlie 

 last two segments ; clypeus brown ; there are also two bright 

 golden chiette projecting between the eyes. 



Thorax deep brown with a greyish sheen, the deep brown 

 also appearing as indistinct lines on the grey area ; in front 

 projecting over the head is a tuft of long, narrow-curved grey 

 scales, the surface of the thorax ornamented with golden curved 

 hair-like scales and scanty golden brown bristles; scutellum 

 brown, paler at tlie edge with numerous pale golden brown 

 border-bristles ; metanotuni brown ; plcune oehreous brown. 



Abdomen brown with u median darker line, shiny, with pale 

 golden hairs. 



Legs deep brown, thin and long, with traces of pale areas 

 at the apices of the tibiie ; fore ungues une(]ual, the larger 

 uniserrated, the smaller very minute, simple, looking like a 

 second spine to the larger one ; mid and hind equal and simple. 



Wings mostly black scaled, with three creamy white costal spots spreading on to the 

 first long vein across the subcostal ; the scales are also pale on the base of the fork-cells and 

 at the cross-veins, also on the lower branch of the fifth and on its stem and on the sixth; 

 fringe duskv, traces of pale area at the lower branch of the fourth anil upper branch of the 

 fifth; first fork-cell considerably longer, very little narrower than the second posterior cell, 

 its stem about two-thirds the length of the cell ; stem of the second posterior longer than 

 the cell by about half the cidTs length ; mid cross-vein a little nearer the apex than the 

 supemunierarv, the posterior not (juite its own length nearer the ba.se than the mid 

 cross- vein. 



Male genitalia (Fig. 31) with the claspers (<■) euivcd apically where they are slightly 

 swollen, a longish median process between the two lias.il lobes with three broad swonl 

 shaped chictie on each side, near the apex (n). 

 Length. 3 to 35 mm. 

 IJahiUit. Lado. (Sheffield Neave, Esq.) 

 Time of capture. February. 

 OOservationn. Described from three perfect males. 



Fk:. 31.— MvzoMviA NILI, Tlieob. 



A Male palp ; 



B Process on m.'ile genitalia ; 



c Clasper. 



