Mehlonlhid Genus Ancistrosoma. 429 



apical callosities are also denuded. The pronotum has a 

 border and a longitudinal median band of orange seta?, and 

 the large, smooth, lateral patches remaining are divided 

 anteriorly by an irregular patch of seta? projecting back- 

 wards from the front margin on each side. The pronotum 

 is rather transverse, with all tour angles acute and the sides 

 strongly bent in the middle. The elypeus is only very 

 minutely notched in the middle in the female, straight and 

 reflexed in the male. The basal ventral segment of the 

 latter is armed with a nearly straight process directed 

 obliquely backwards. 



Specimens were taken in numbers by Mr. W. E. Broad- 

 way, who found them destroying the young foliage of the 

 mountain Immortelle (Enjthrina) in June of this year. 



Ancistrosoma trinitatis, sp. n. (Figs. 3, 3 a.) 



Testaceum, corpore supra setis pallida flavis, subtus setis griseis 

 ubique sat crebre vestito, pedibus minus dense flavo-pilosis, 

 clypeo anticc fere recto; pro-note- transverso, antice modice 

 angustato, lateribus medio leviter angulatis, angulis antieis fere 

 rectis, posticis acute produetis ; scutello setis ut in dorsi reliquo 

 vestito, elytris costis angustia vix nudis instructis : 



$ , clypeo leviter reflexo, utrinque obtuse angulato ; pygidio inflexo, 

 convexo, linea brevi lougitudinali mediana kevi ornato, segmento 

 ventrali primo medio minute producto vel spinoso, pedum 4 

 posticorum uuguibus fissis : 



5 , pronoto postice plagis minutis duabus denudatis subopacis 



instructo ; pygidio brevi planato ; uuguibus omnibus fissis. 

 Long. 17-20 mm. ; kit. max. 8-9 mm. 



Hah. Trinidad. 



This insect has the generic features at their lowest deve- 

 lopment. Almost the whole surface is covered with narrow 

 scales or setre, the elytral costre, although denuded on the 

 summit, being very narrow and not conspicuous. The 

 elypeus is not bilobed, but nearly straight at the front 

 margin. The general form and size are those of A. furl- 

 nosum, but a little less elongate, and the pronotum is rather 

 broader, less narrowed in front, and less angulated at the 

 sides. The scutellum is clothed, except at its edge, with 

 seta3 only a little longer than those of the pronotum and 

 elytra. 



<$ . The abdomen is strongly arched and the legs are 

 slender. The front margin of the elypeus is gently excised 

 and the angles rather sharply marked. The first abdominal 

 segment is. produced in the middle as a minute spine, but in 



