FAM. MEMBRACID^ 



247 



Typo ohesus Fairmaiie. 



Qeographical distfibution : This is an .-^ustralasian genus with a considerable oceanic 

 disti ibution. 



1. agnaitts Distant, Rhynch. Xotes 3 19 (1916). 



2. alliceps Walker, Journ. Linn. Soc. Zool. X : i83 (1S6S). 



3. /w^m Funkhouser, Phil. Memb. 3Si (igiS). 



4. bicornis Funkhouser, Rec. Aus. Mus. XV : 5. 3o5 (1927). 



5. bulbifer Funkhouser, Bull. Brook. Ent. Soc. XXII : 106 (1927). 



6. erigens Walker, List Hom. B. .M. 614. 43 (i85i). 



7. glohostis Funkhouser, V^hil. Journ. Sci. XVIII : 6. 683 (1921). 



malleiis Walker, List Hom. B. M. 6i3. 41 (i85i). 

 fig. 2 15. 



Pl. 13, 



9. obestis Fairmaire, Rev. Memb. 5 18. 28 (1846). 



vuiUiator 'WaXVer, List Hom. B. M. 612 40 (iS5i). 

 lumescens Buckton, Mon. Memb. 236 (igoS). 



10. occidentalis Goding, Mon. Aus. Memb. 27 (1903). 



11. perarmatus Distant, Faun. Brit. Ind. App. i56. 335o (1916). 



12. rugosis Vnnkhonsev, Phil. Journ. Sci. XXXIII : iii (1927). 



Siam, Chantaboun. 

 East Indies. 



PhiHppines, Mindanao, Ihgan. 

 British New (niinea. 

 Sumatra. 

 Phihppines. 

 Phihppines, Mindanao, 

 Dapitan. 



India, Teppalculam, Castle 

 Rock, N. Kanara, Hombay, 

 South India, Ceylon, Bor- 

 neo. Java. 



Java. 



West .Austraha, .Swan Kiver. 

 India, Cochin, Trichur. 

 Phihppines, Sibuyan. 



245. GENUS ACANTHUCUS Stal 



Acanthucus Stal, Hem. Afr. IV : 87 (1866). 

 AcanthHSUs (error) Distant. Rhynch. Notes 28 (1916). 



Characters : A verv distinct genus characterized particularly by the strong sharp triangular 

 dorsal spine at the base of the posterior process. Head subquadrate, broader thanhigh; base highly 

 arcuate, feebly sinuate and weakly bituberculate; eyes ovate; oceUi large, prominent, farther from each 

 other than from the e\'es and situated well above a hne dravvn through centers of eyes; inferior margins 

 of gense sloping, strongly sinuate and somewhat flanged; cl^^peus very broad, trilobed, extending for 

 half its length below inferior margins of gena;, tip rounded. Pronotum convex, bearing a pair of stout 

 suprahumerals, a median dorsal spine and a long, sinuate posterior process; metopidium convex, vertical, 

 broader than high; median carina strongly percurrent; humeral angles large, subconical and blunt; 

 suprahumeral horns strong, triquerate. as long or longer than the distance between their bases, extending 

 outward and upward with the tips often recurved or decurved ; dorsum bearing a strong, sharp, trianguiar 

 spine at the base of the posterior process; posterior process long, tectiform, stiongly sinuate, lying close 

 to scutellum and impinging on tegmina, tip acuminate and reaching nearly to the tips of the tegniina; 

 scutellum narrowly exposed on each side. Tegmina broad, hyaline or siibhyaline; basal and costal 

 areas broadly coriaceous and punctate ; veins strong; five apical and two disoidal cells; tip rounded; 

 apical limbus narrow. Legs simple; hind tarsi longest. 



Type gracilispinus Stal. 



