264 PKOCEEDINGS OF THE ACADEMY OF [Vol. LXXIV 



apex of the caudal femora. Prosternum and mesosternum each 

 with a pair of bluntly conical projections, metasternum unarmed. 

 Ultimate tergite briefly produced in space between cerci, the apex 

 of this production transverse, weakly emarginate, with margins 

 weakly convex. Cerci elongate and heavy, weakly sigmoid in 

 lateral aspect, cylindrical with vent ro-internal surface swollen at 

 end of proximal third, thence slightly widening, then tapering to 

 the sharply rounded apex, this distal two-thirds vertically some- 

 what lamellate (the cerci thus form elongate claspers, which are 

 attingent distad). Subgenital plate with surface moderately 

 convex, lateral margins weakly convergent to the truncate and 

 weakly convex distal margin; styles situated at disto-lateral angles, 

 very slender, cylindrical, directed ventrad and slightly curved 

 cephalad, nearly six times as long as basal width. Femoral geni- 

 cular lobes bluntly rounded. Cephalic femora armed ventrad with 

 three external and four internal, moderately elongate spines, other 

 femora entirely unarmed. Cephalic tibiae armed with four pairs 

 of elongate spines and a minute pair of distal spines, the longest 

 (proximo-internal) nearly five times the width of the tibia at that 

 point. Median tibiae armed only with a minute pair of ventro- 

 distal spines. Caudal tibiae unarmed ventrad, supplied with 

 numerous small spines along the dorsal margin and armed distad 

 with two pairs of short but heavy spurs. 



General coloration immaculate, light brownish buff (apparently 

 much discolored). Caudal tibial spurs and lateral portions of 

 tarsal joints embrowned. 



Length of body 11.5, length of pronotum 3.4, greatest width of 

 pronotum 2, length of pronotal lateral lobe 3, depth of pronotal 

 lateral lobe 1.2, length of tegmen 8.8, width of tegmen 1.9. extent 

 of wing beyond tegmen 2.7, length of cephalic femur 3.8, length of 

 caudal femur 11 mm. 



The type is unique. 



Phisis obiensis new species. Plate XVII, figure 20. 



This insect is closely related to the Papuan P. arachnoides 

 (Bolivar), differing in the female sex from the description of that 

 species in the slightly shorter limbs, slightly longer ovipositor, 

 subgenital plate which has its apex produced mesad in a small, 

 narrow-necked lobe and spination of the trochanters and femora of 

 the median limbs. 



Type: 9 ; Obi Island, Moluccas. [Hebard Collection, Type no. 



830.] 



Size medium, form very slender for the genus. Vertex very 

 slender, weakly ascendant to the sharply rounded apex, medio- 

 longitudinally weakly sulcate. Maxillary palpi extremely elongate, 

 last joint decidedly longer than fourth, weakly and evenly curved, 

 widening very slightly and gradually to the sharply rounded apex, 



