488 SEREIC0E1SIA. 



extent, being sometimes reduced to a small spot at the base and apex, but it does not 

 extend outwards at the middle (as in E. pictipes), so as to form a cruciform black mark. 



18. Hemicrepidius pictipes. (Tab. XXI. fig. 17, $ .) 



Apypnus pictipes, Chevr. Mag. Zool. 1843, tt. 107-113, p. 7 1 . 

 Adelocera pictipes, Cand. Monogr. Elat. i. p. 74 2 . 

 As aphes pictipes, Cand. op. cit. iv. p. 217, t. 3. fig. 3 3 . 



Eab. Mexico 3 , Jalapa 1 2 , Orizaba (Salle), Cordova (Salle, Edge). 



Apparently a common insect at Cordova, whence we have received a large number 

 of examples. This species may be readily known from its allies by its subopaque 

 surface, transversely rugose elytra, and densely punctured thorax ; the latter with a 

 broad cruciform patch — often interrupted on either side, so as to leave a median vitta 

 and a marginal spot — black, bordered with rufous, the sides in front and behind being 

 yellow. The thoracic pubescence partakes of the ground-colour ; the hind angles are 

 not or obsoletely carinatej the base has a distinct deep incisure on either side. 



19. Hemicrepidius biformis. (Tab. XXI. figg. 19, <j ; 20, 2 .) 



Moderately elongate, narrow ( d! ), the females broader, sliming ; black or piceous ( d), reddish-brown, 

 castaneous, or black ( $ ), the prothorax rufous or ferruginous, with a cruciform black patch of variable 

 extent on the disc — in some specimens ( £ ) very broad, extending to the base and apex, and almost to the 

 lateral margins, and in others ( $ ) reduced to an anteriorly dilated median vitta, two transverse marks, 

 or a transverse mark before the middle ; the antennae black, the basal joint usually ferruginous in the 

 females ; the legs varying in colour from testaceous to piceous ; the under surface varying in colour from 

 rufo-ferruginous to piceous; above somewhat thickly clothed with rather coarse yellowish-cinereous 

 pubescence, the pubescence usually fuscous on the elytra in the males and on the prothoracic patch in 

 both sexes, the elytra in some males with an oblique stripe of yellowish-cinereous hairs on the disc, the 

 under surface sparsely cinereo-pubescent. Head depressed in front, sparsely punctured anteriorly, closely 

 so on the vertex ; antennae extending slightly beyond the hind angles of the prothorax in the male, a 

 little shorter in the female, joint 3 slightly longer than 2. Prothorax a little longer than broad, the 

 sides slightly converging in front, and distinctly sinuate before the middle as well as before the base ; the 

 hind angles feebly divergent, not or obsoletely carinate ; the surface densely, finely punctate. Scutellum 

 convex in front, sparsely punctured. ' Elytra two and one-half times the length of the prothorax, narrow- 

 ing from about the basal third, the apices subtruncate ; deeply punctate-striate, the interstices rather 

 convex, somewhat coarsely punctured, and transversely rugulose, granulate on the basal declivity. 

 Beneath sparsely, finely punctate. 



Length 5£-8$, breadth lf-2i millim. ( d $ .) 



Eab. Mexico, Cordova (Salle), Jalapa (Edge); Guatemala, Chiacam, Sabo, and 

 Sinanja in Vera Paz (Champion), Coban in Vera Paz (Conradt). 



Found in abundance at Chiacam, upon herbage, the sexes in about equal numbers ; 

 one or two specimens only at each of the other localities. From Herr Conradt we 

 have received a pair " in copuld " from Coban. The sexes differ greatly in colour and 

 size, the males being much smaller than the females, and the latter usually having the 

 head, elytra, and basal joint of the antennae reddish-brown, and the discoidal mark on 

 the thorax very much reduced in size. The insect is closely allied to E. cruciatus, but 



