106 M. W. NIELSON 



level of eyes; ocelli small, situated anteriorly; eyes large, occupying nearly two-thirds of entire 

 dorsal area of head; pronotum short, median length less than median length of crown, surface 

 finely knobbed; scutellum large, median length greater than median length of pronotum; 

 elytra elongate, veins prominent, appendix well developed, venation as in description of genus; 

 clypeus long, very broad anteriorly, narrowed posteriorly, without median longitudinal carina, 

 surface finely granulose, rugulose along anterior margin; clypellus with lateral margins 

 constricted medially. 



Male pygofer in lateral aspect with long, narrow, curved process arising from caudoventral 

 margin, process broad medially, narrow, attenuated along distal three-fourths, finely sinuate 

 along inner lateral margin; aedeagus in lateral aspect with dorsal appendage broad at basal 

 three-fourths, narrowly attenuated at apical one-fourth; dorsal appendage with a pair of long, 

 curved spines basally along lateral margin and a row of sharp spines basally on ventral margin; 

 ventral appendage long, broad, extending beyond apex of dorsal appendage; gonopore apical; 

 connective Y-shaped; style clawed apically; plate with distal segment elongate, dorsal margin 

 expanded medially. 



Female seventh sternum with posterior margin produced medially. 



Specimens examined. 



Holotype <$, Borneo: Sandakan (Baker) (USNM, Washington). 



Paratypes. Borneo: allotype $, same data as holotype (USNM, Washington). 

 Philippines: 29 <$, 44 9, same data as holotype; Basilan I., 12 <$, 5 9 (Baker); 

 Zamboanga, Mindanao, 12 $, 2 9> 1927 (Baker); Butuan, Mindanao, 4 <$, 10 9 

 (Baker); Iligan, Mindanao, 11 <$, 3 9 (Baker); Surigao, Mindanao, 2 £, 3 $ (Baker); 

 Davao, Mindanao, 10 £, 2 9 (Baker); Cuernos Mts, Negros, 1 o. 2 $ (Baker); 

 Kolambugan, Mindanao, 1^,1$ (Baker); Baguio, Benquet, 1 <$ (Baker); Samar I., 

 1 9 (Baker); Malinao, Taybas, I <$ (Baker) (USNM, Washington); Mindanao, Agusan, 

 S. Francisco, 10 km. S.E. 5 <$, 13. xi. 1959 (L. W. Quote); Bukidon, 1250 m; Mt 

 Katanglad, 2 <$, 1 9> 4-9.xii.1959 (L. W. Quale); Misamis, Balason, 1^,1$, 

 4-5. iv. i960 (W. Torrevillas); Surigao, Mindanao, 1 9; Katbalogan, 1 q (OSU, 

 Columbus). Borneo: Sarawak, Sarikei Dist., Rejang Delta, 5 <$, 7 $, 15-25.vii.1958 

 (T. C. Mad); Kuching, Santubong, 797-1500 m, 1 <$, 18-30. vi.1958 (T. C. Maa); 

 Kapit Dist., Merirai V., 1 $, 28-31.vii.1958 (T. C. Maa); Bau Dist., Pangkalan, 

 Tebang, 300-450 m, 1 <$, 2 $, 6.1X.1958 (T. C. Maa) ; Gunong, Matang, 120 m, 

 1 (J, 2$, 13. ix. 1958 (J. L. Gressitt); Sandakan Bay (S.W.), Sapagaya Lumber Camp, 

 2-20 m, 1 3, 2 $, 4.XL1957 (/. L. Gressitt); Sandakan Bay (N.W.), Sepilok Forest, 1- 

 10 m, 1 J, 30.X.1959 (/. L. Gressitt) ; Gomantong Caves, 3 $, 22-26.xi.1958 (T. C. Maa); 

 Kalabakan Primary Forest, 2 $, 11.xi.1958 (T. C. Maa); West Coast Residency, 

 Ranau, 8 miles N. Paring Hot Springs, 500m, 1 <$, 9-18.X.1958 (T. C. Maa); 

 Liawan, 1 $, 14-19. i. 1959 (T. C. Maa); Tawau Residency, Kalabakan R., Tawau, 

 30 miles, W., 1 $, 10-18.xi.1958 (T. C. Maa); Tawau, Quoin Hill, 1 $, 3-7. xii.1962 

 (H. Holtmann); Forest Camp, 19 km N. Kalabakan, 1 $, i.xi.1962 (Y. Hiroshima); 

 Telok Ayer, 4 $ (F. Muir); Sandakan, 2 $, i.1927 (Pemberton) (BPBM, Honolulu); 

 Bettotan nr Sandakan, 4 $, 17.viii.1927; Mt Kinabalu, Mesilau Cave, 1 $, 23- 

 24. hi. 1964 (S. Kueh); Sarawak, foot of Mt Dulit, junction of Rivers Tinjar and 

 Lejok, 2 $, 13.ix.1932 (D. M. Hobby & A.W. Moore) (BMNH, London); Sandakan, 

 3 (J, 3 $ (Baker); Telok Ayer, 2 $, 1 9 (F. Muir), in author's collection. Malaya: 

 W., Selangor, Subang Forest Reserve, 90-120 m, 1 ^, 13.iii.1958 (T. C. Maa) 

 (BPBM, Honolulu); Singapore, Bukit, Timah, 100 ft, 1 <$, 19.viii.1962 (E. S. Ross 



