^taphylinidiZ of the Amazon Valley. 61 



different from one another in lengtli, but the 4th not more 

 than half as broad as tlie 10th; this latter as well as the 

 preceding joints strongly transverse ; 1 Itli joint moderately 

 long, quite as long as the two precedhig together. Head 

 short and broad, but distinctly narrower than tlie thorax, 

 black, very finely pimctured, the punctures absent from 

 a longitudinal space on the midJ.le, and the hinder part 

 slightly impressed on the middle. Thorax almost as broad 

 as the elytra, twice as broad as long, very finely and 

 moderately closely punctured, with a slight depression on 

 the disc. Elytra a good deal longer than the thorax, 

 finely and moderately closely punctured. Hind body dis- 

 tinctly narrowed towards the extremity, the basal seg- 

 ments finely and rather closely, the apical ones sparingly 

 punctured. Legs yellow, but a little infuscate. 



In the male, the hind margin of the dorsal plate of the 

 7th segment of the hind body is furnished in the middle 

 Avith three ratlier approximate, equidistant, similar spines, 

 and on each side with an extremely long, slender, pointed 

 spine, which is a little incurved. 



A single male Avas found by Dr. Trail at Barreiras de 

 Janarape, Rio Solimoes, on the 9th January, 1875. 



Ohii. — This species has the middle tarsi 5-jointed ; the 

 middle coxaj are distinctly separated, the meso- and meta- 

 sternal processes both acuminate, and meeting one another 

 about half-way betAveen the coxa? ; the genas appear to me 

 to be very finely margined. It much resembles the 

 European //. indiscrcta, Sharp, but is decidedly smaller, 

 and has the male characters very different. 



2. Ilonialota tenax, n. sp. Fusca, pedibus testaceis, an- 

 tennarum basi fusco-testaceo, thorace abdomineque seg- 

 mcntis basalibus obscure rufescentibus ; antcnnis crassius- 

 culis ; thorace transverso, elytris breviore ; abdomine sub- 

 parallelo, segmentis basalibus sat crebre, aplcalibus parce 

 l^unctatis. Long. corp. 1^ lin. 



Antennse stout, moderately long, black, the basal joint 

 obscurely pale ; 3rd joint stout, nearly as long as 2nd ; 4th 

 smaller than the others and scarcely so long as broad ; 5 — 10 

 differing but little from one another, each distinctly trans- 

 verse ; 1 1th joint rather elongate, fully twice as long as 

 the 10th. Head short and broad, finely and not densely 

 punctured, nearly black. Thorax a little narrower than 

 the elytra, broader than long, slightly rounded at the sides 



