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SOME NEW ANTBRIBIDAE FROM THE ISLAND OF 

 ST. THOME, BAY OF BENIN. 



By K. JORDAN, Ph.D. 



ri'^HE three species which are here tleseribed were collected in lOni.i by Monsieur 

 -L A. Mocqnerys. 



1. Xylinades thomasius spec. nov. 



?. Nearest to .Y. montamis Kolbe (1894) and lanugiconiis Dalm. (1833). 

 Antenna longer and slenderer than in the species mentioned, the third segment 

 especially being longer. The false mentum without a groove along the edge of the 

 round central sinus. 



Pronotum widest behind the middle, almost gradually narrowed from the 

 widest point to the ape.x ; the apex itself broadly excised, which is not known 

 of any other species, and the coarsely punctate-rugate disc posteriorly much 

 depressed ; dorsal carina rounded, interrupted in the centre, continuous with the 

 lateral carina, which gradually fades away in the middle of the side instead of 

 being continued to near the apical margin ; the yellowish tomeutum dense along 

 the middle line, no black spots. 



Elytra coarsely punctured in the stripes and anteriorly granulose, depressed 

 along the suture, the yellowish tomentum dense at the suture, before and behind 

 the middle and at the apex, there being no black spots ; the stripes not developed 

 in the middle of the side, there being here an irregular, more or less smooth space 

 (due to pressure iu the pupal stage ?). 



Prosternum similar to that of X. montanus Kolbe (1804), bearing posteriorly 

 a tubercle behind each coxa, but not in the centre. Abdomen more strongly 

 jiunctured than in the allied species. 



Fore- and midtibiae much thinner than is usual in this genus, incurved on 

 the inner side with the apex widened ; foretibia without distinct groove on the 

 dorsal side, the groove being but feebly marked also on the midtibia. Tarsi 

 slenderer than in the allied species. 



Length (exclusive of head) U mm. 



One ?. 



The excision of the apical margin of the pronotum, the short lateral carina, 

 and the peculiar shape of the fore- and midtibiae may possibly be malformations. 



'i. Gynandrocerus thomensis spec. nov. 



S. Similar to G. antennalis Lac. (1860). Rostrum as in that species. 

 Antenna longer, segment 7 much slenderer, being but little broader at the apex 

 than segment 6, segment 8 triangular, one-fourth longer than broad, strongly and 

 gradually narrowing from apex to base, 8 to 10 also longer, lo being less than 

 twice as broad as long. 



Pronotum punctured almost throughout, the juinctures shallow. 



Elytra slightly more depressed at the suture than in G. antennalis, the 



