di2 
48. Bivis PUNCTIFRORS, n. 8., mas et foem. Testacea rufo vittata, fronte ní- 
gro punctata, thoracis carinis pallidioribus, alis subhyalinis, anticis guttis mar- 
ginalibus strigaque apicali dilatata fuscis, venis nigris testaceo fasciatis. 
Male and Female, Testaceous, with red stripes, in structure like B. pictula. 
Front with three rows of black transverse dots; face with black dots at the 
base. Thorax with three brown stripes. Wiugs nearly hyaline; fore wings 
with marginal hrown dots, and with an irregular brown streak, which ís 
dilated towards the tip of the wing; veins black, with testaceous bands. 
Length of the body 3-3: lines; of the wings 7-73 lines. 
49. Bipis CoONTIGUVA, n. s,, mas. Testacea, rufo vittata, fronte nigro punctata, 
alis subhyalinis, anticis vitta postica nigra, venis testaceis. 
Male Testaceous: in structure like B. pictula. Mead and thorax with red stripes. 
Front with three rows of black transverse dots. Prothorax with black dots on 
each side. Mesothorax with three pale brown stripes. Wings nearly hyaline; 
fore wings with a black stripe along the interior border; veins testaceous. 
Length of the body 3 lines; of the wings 7 lines. 
Gen. OsTAMA, n, g. 
Caput breve; vertex subquadratus lateribus subelevatis; frons plana, longi-sub- 
quadrata, antice latior; facies lanceolata. Axtenae longiusculae, filiformes; 
artieulus Zus 19 non longior; seta brevis. Mesothoraa tricarinatus. Alarum 
anticarum areolae basales marginalibns multo longiores; venae marginales 
plurimae, nonnullae furcatae. 
Head short; vertex sabquadrate, with elevated borders; front smooth, elonga- 
te-subquadrate; face lanceolate, a little shorter than the front. Antennae fili- 
form, rather long; 2nd joint as long as the ist; seta short. Mesothorax 
with three slight parallel keels. Fore wings with a row of transverse veinlets 
which divides the basal veins from the marginal veins, the former nearly twice 
the length of the latter, which are rather numerous, and some of them forked. 
50. OsrTAMA JUNCTA, mn. s., mas. Ferruginea subtus nigra, abdominis dorso 
tibiisque rufis, alis anticis fuscis testaceo conspersìis, apicis versus hyalinis vitta 
‚ arcuata strigaque nigro-fuscis, posticis cinereis. 
Male. Ferruginous, black beneath. Borders of the thorax testaceous. Abdomen 
above and tibiae red, Fore wings brown, with numerous testaceous punctures : 
part beyond the tranverse veinlets byaline, with a curved strip and a streak 
of a blackish-brown hue; bind wings grey. Length of the body 2% lines; 
of the wings 7 lines. 
