8 Mr, Gilbert J. Arrow's Conirihution to Oie 



slioiildors than in the otlter two s])ecies and their apices are 

 not jiroduced as in T. rex. The chib of the antenna is 

 triangular in shape, as in the latter, but much less dilated 

 in the male, and the excision of the front and middle tibiae 

 in the same sex is also different. 



Trycherus ovatus, sp. n. 



Niger, elytronim apieibus,abdorainc,tarsis antennarumque articulo 

 ultimo fcrrugineis, elytrorum fascia mcdiana transversa pallide flava 

 xmdulata, ad suturam late intcrrupta, intus et extus breviter retror- 

 sum ducta ; sat brevis, parum nitidiis, snbtiliter punctatiis, pronoto 

 piano, lateribus leviter bisinnatis, anguste marginatis, angulis 

 posticis parum productis, acutis, basi baud lato, immarginato, 

 utrinque leviter impresso; elytiis convexis, ovatis, humeris parum 

 prominentibiis, lateribus anguste marginatis; clava antennali 

 anguste triangulari, truncata : 



(^, clava antennali paulo latiori, tibiis anticis et mediis ante 

 apicem excisis, his supra excisionem acute spinosis. 



$, segmento ventrali ultimo apice minute bifido. 



Long, 10-11 mm.; lat. max. 6 mm. 



Hah. Uganda : Mabira Forest, Chagwe, 3,500-3,800 ft. 

 (/S. A. Neave, C. C. Gowdey, July). 



It is rather short in form, with the elytra broadly oval 

 and very convex, without prominent shoulders, their 

 apices entirely reddish and a rather narrow zigzag yellow 

 bar crossing each just before the middle. The pronotum 

 is witliout a basal stria. 



The front and middle tibiae of the male are excised before 

 the extremity, the latter more deeply than the former, 

 and the emargination is succeeded by a minute tooth, and 

 in the middle tibia preceded by a strong tooth. 



In the female the extremity of the last ventral segment 

 is narrowly notched to a depth of about a quarter of the 

 length, 



Trycherus f rater, sp. n. 



Niger, elytrorum fascia mcdiana transversa pallide flava aliaque 

 anteapicali antice bilobata, abdomine, tarsis et antennarum articulo 

 ultimo ferrugineis; sat brevis, parum nitidus, subtiliter punctatus, 

 antennarum clava utriusque sexus angustissima, apice truncato : 

 T. ovato valde affinis, sed elytrorum apicibus fuscis et feminae seg- 

 mento ultimo ventrali profundius bifido. 



Long, 10-11 mm.; lat. max. 6 mm. 



