ALATTS— HEMIEHIPUS. 271 



4. Alaus suturalis. (Tab. xi. figg. 13, 13 «, $ .) 



Moderately elongate, black ; the prothorax ferruginous, with the base and lateral margins very narrowly, 

 and a narrow longitudinal median vitta not reaching the base, black ; the elytra ferruginous, with tbe base 

 and suture very narrowly, and also the apex, black ; the upper surface thickly and uniformly clothed with 

 minute golden-green scales ; the pro-, meso-, and metapleurse, and also the ventral segments at the sides, 

 clothed with greenish scales; the antennae with joints 4-11 thickly clothed with purplish-brown 

 pubescence ; the legs pitchy-brown. Head triangularly depressed in front, densely, minutely punctate, 

 with scattered coarser punctures intermixed ; antennae moderately elongate, joints 2 and 3 small and 

 very short, 3 acutely and obliquely produced on the inner side, 4-11 broadly and obliquely lamellate, 

 11 constricted beyond the middle. Prothorax nearly one-third longer than broad, convex, subparallel, 

 the sides rounded in front and sinuate behind, the lateral margins thickened at the base, the hind angles 

 acutely produced and divergent ; the entire surface densely, minutely punctate, with scattered coarser 

 punctures intermixed. Scutellum declivous, obtuse behind, almost smooth. Elytra not twice the length 

 of the prothorax, narrowing from the base, bluntly rounded and divaricate at the apex, the sutural angles 

 rather sharp ; finely punctate-striate, the punctures not very closely placed, and becoming coarser and 

 deeper towards the sides ; the interstices feebly convex, densely, minutely punctate ; the suture acutely 

 raised in front ; the disc flattened and declivous almost from the base. Bdneath sparsely, finely punctate, 

 the pleurae densely punctured ; the propleurae not grooved ; the fifth ventral segment truncate at the apex 

 and thickly fringed with long hairs. 



Length 13|, breadth 3f millim. ( 5 .) 



Hab. Nicakagua, Chontales (Belt). 



One worn specimen. Allied to A. glaucus, Cand., and A. nietoi, Salle. 



HEMIRHIPUS. 



Hernirhipus, Latreille, Regne Anim. iv. p. 454 (1829); Candeze, Monogr. Elat. i. p. 246; Revis. 

 Elat. p. 153. 



Thirteen species of Hernirhipus are enumerated by Candeze, all American, the genus 

 ranging from New York to Uruguay ; with two exceptions, all are tropical. In 

 addition to the three species mentioned below, two others are given by Candeze 

 from within our limits ; these are H. rojasi, Cand., from Merida, Yucatan (probably 

 in mistake for Merida, Venezuela), and H. fairmairei, Cand., from " Central America ; " 

 as regards the latter, all the specimens I have seen are labelled "New Granada," and 

 we have no evidence of the occurrence of the insect so far north as Panama. 



Scutellum vertical in front; metasternum not deeply sulcate bimaculatus. 



Scutellum declivous ; metasternum very deeply sulcate. 



Elytra testaceous, with some oblong spots at the base, and three narrow zigzag 



fasciae on the posterior half, brown or piceous fascicularis. 



Elytra black, with some elongate streaks at the base, and a zigzag fascia beyond 



the middle, testaceous decorus. 



l. Hernirhipus bimaculatus. (Tab. XI. fig. 17, s .) 



Hernirhipus bimaculatus, Cand. Monogr. Elat. i. p. 35 * ; Revis. Elat. p. 154 2 . 

 Hab. Mexico x 2 . 



The type of this species, a male, is still unique in the Janson collection. 



