WALKER ON 1>IPTEEA OF AKU ISLAND?. 90 



S3. Masicera simplex, n. s. Fcem. Nigra, capite albo, frontalibus 

 atris, thorace cinereo-toraentoso quadrivittato, abdomine fasciis cine- 

 reis late interruptis, alls cinereis. 



Female. Black, with stout bristles. Head white, with white hairs be- 

 neath, frontalia deep black, linear, face oblique, facialia without 

 bristles, epistoma not prominent ; eyes bare ; antennas almost reach- 

 ing the epistoma, third joint cinereous, linear, rather broad, almost 

 truncated at the tip, about four times the length of the second, arista 

 slender, very much longer than the third joint ; thorax and pectus 

 with cinereous tomentum, the former with four slender black stripes ; 

 abdomen shining, subelliptical, a little longer than the thorax, with a 

 widely interrupted cinereous band on the fore border of each segment ; 

 legs stout; wings cinereous; veins black; prsebrachial vein forming 

 a very obtuse angle at its flexure, from whence it is straight to its 

 tip, discal transverse vein almost straight, parted by hardly less than 

 its length from the border, and by very much more than its length 

 from the flexure of the praebrachial ; alulae white. Length of the 

 body 3^^ lines ; of the wings 6 lines. 



84. Masicera guttata, n. s. Fcem. Nigra, capite albo, frontalibus 

 atris, thoracis vittis tribus pectoreque cinereis, abdomine guttis late- 

 ralibus albis, alis cinereis. 



Female. Black, with short slight bristles. Head white, frontalia deep 

 •black, widening slightly towards the epistoma, face oblique, facialia 

 without bristles, epistoma not prominent; antennse reaching the 

 epistoma, third joint linear, slightly truncated at the tip, full four 

 times the length of the second, arista slender ; thorax with three 

 cinereous stripes ; pectus cinereous ; abdomen elongate-oval, a little 

 longer than the thorax, a row of white dots along each side on the 

 fore borders of the segments ; wings cinereous, a little darker along 

 the costa towards the base, veins black, praebrachial vein forming a 

 very obtuse angle at its flexure, from whence it is almost straight to 

 its tips ; discal transverse vein straight, parted by more than its length 

 from the border and by nearly twice its length from the flexure of 

 the praebrachial; alulse whitish. Length of the body 2^ lines; of 

 the wings 4 hues. 



G-en. EuEYGASTEE, Macq. 



85. Eurygaster tentans, n. s. Fcem. Nigra, latiuscula, cinereo 

 tomentosa, capite albo, frontalibus atris, thorace vittis quatuor nigris, 

 scutelli margine .postico ferrugineo, abdomine subtessellato, alis ci- 

 nereis apud costam subfuscis. 



Female. Black, rather broad, with cinereous tomentum. Head white, 

 with white hairs behind and beneath, frontalia deep black, narrow, 

 widening towards the face, which is oblique, facialia with bristles 

 along more than one-third of the length from the frontalia, epistoma 

 not prominent; eyes pubescent, palpi ferruginous; antennae ex- 



