210 NEW EECOBDS & SPECIES OE MALAYAN M EMBRACED AE. 



Undersurface of thorax uniformly black, irregularly pubescent 

 with white hairs. Abdomen ringed with white and black; the 

 two apical segments black, the next four segments white, the next 

 segment black, the next segment white and the basal segments black, 

 the white segments irregularly but strongly punctate with black 

 dots ; the colors of the abdomen easily described through the hyaline 

 portions of the wings. 



Legs black with the exception of the basal joints of the tarsi 

 which are white or yellowish and a broad luteous band near the 

 apices of the tibiae of the last two pairs of legs. Tibiae minutely 

 spined and nodulate. Claws strong and black. 



Length 6 mm. ; width between tips of suprahumeral horns 4 

 mm. ; length of .each suprahumeral horn 1 mm. 



Type: female (Baker's duplicate No. 9825). 



Locality; Sandakan, Borneo . 



Type in author's collection. 



This is a very striking and distinct species and should be at 

 once recognized by the strongly Insinuate posterior process, the 

 slender suprahumeral horns and the black cell of the tegmen. 



14. Tricentrus pronus Distant. 



1916. Tricentrus pronus Dist. Fauna Brit. Ind. App. 

 p. 166, No. '3368. 



Two specimens, both females, from the Island of Penang. 

 This species is close to T. giboosulus Walk., but differs in the 

 shape and direction of the suprahumeral horns. 



15. Tricentrus allabens Distant. 



1916. Tricentrus allabens Dist. Fauna Brit. Ind. App. 

 p. 166, No. 3367. 



Two females, one from the Island of Penang and one (Baker's 

 duplicate No. 9826) from Sandakan, Borneo. In the Borneo 

 specimen the horns are sharper and slightly more recurved than in 

 the specimen from Penang; it agrees more closely with Distantfs 

 original description and figure. The Penang specimen may be a 

 variety but I should not like to (separate it on the basis of a single 

 specimen. Both specimens have the characteristic white transverse 

 fascia following the black basal area of the tegmen. 



16. Tricentrus truncaticornis Funkhouser. 



Add — Locality: Sandakan, Borneo. 



One male specimen. This is without doubt the male of T. 

 truncaticornis and is the first record for the sex. The species was 

 described from a female from Singapore with which type specimen 

 the Borneo insect has been compared. 



Jour. Straits Branch 



