Genera and Species of Tabauidio. 19 



occipital border* l)roa(l, in contact witli upper and lower as 

 well as with posterior niar}j;in of eye, deeply uotclied and in 

 some specimens actually divided into two parts; frontal 

 spots lar«^e, and all three usually in contact with margin of 

 eye; shaft attached to arrow-head, and, tliou;^h sometimes 

 not extending so far, usually reaching upper margin of eye 

 and there forming a connection between ujjper extremity of 

 occipital boi'dcr and upper frontal spot ; pouit of arrow-head 

 not reaching lower extremity of occipital border, but shoulders 

 of arrow-head sometimes in contact both with lower end of 

 upper half of latter ami with middle frontal spot. Thorax 

 clothed with whitish hair, shorter on dorsum than on pleurae 

 ami pectus; paired light grey longitudinal strijies on dorsum 

 comnuMicing on front margin, and, Avhen viewed from above, 

 disappearing after extending over about anterior three- 

 fourths of main portion of dorsum, when, however, the thorax 

 is viewed obliquely from behind the posterior extremities of 

 the stripes are seen to curve round on to the postahir calli ; 

 lateral borders of dorsum light grey ; pleurte and pectus 

 slate-grey, former marked with an undulating stripe of pale 

 yellowish or ochreous pollen, which, commencing on each 

 side above hind coxa, runs forwards along upper border of 

 sternopleura as far as prothorax, and is connected with its 

 fellow of the op|)osite side by a transverse band in front of 

 the anterior coxfe ; there is also a patch of similarly coloured 

 }3ollen on upper portion of each mesopleura. Abdomen,'. 

 dorsum clothed for most part with minute, appressed, 

 ochreous hairs (on basal angle sometimes with whitish 

 liairs), Mhich become longer towards distal extremity ; venter 

 slate-grey, clothed with minute, appressed, ochreous or pale 

 yellowish hairs, more or less yellowish-grey pollinose, espe- 

 cially towards distal extremity and on sides of preceding 

 segments. lfln(/s : proximal and distal edges of transverse 

 band both somewhat irregular, proximal edge commencing 

 on auxiliary vein a little beyond level of proximal end of 

 stigma, thence running obliquely to second longitudinal vein 

 at origin of third longitudinal, from this point passing 

 straight across distal extremity of first basal cell to angle at 

 proximal end of discal cell, and thence to the posterior of 

 the two angles at distal extremity of second basal cell ; from 

 this point the proximal edge of the band follows the veins 

 forming the base and proximal boundary of the fifth posterior 

 cell, passing over into the anal cell in the narrow, distal 



* For explanation and illustrations of terms, see E. Daecke, " On the 

 Eye-Coloration of the Genus Chrijsops" ('Entomological News/ vol. xvii. 

 leOO, pp. 39-42, pi. i.). 



2* 



