522 S^EEICOENIA. 



The known localities for this species are all in the State of Oaxaca. From the series 

 of examples before me it is evident that the var. a of Candeze belongs to another 

 species, and that his A. ciocolatinus is nothing but a dark unicolorous variety of 

 A. amabilis. The latter is compared by him with A. vaccinus, but it has no affinity 

 with that insect. In the form of A. amabilis described by Candeze, of which I have 

 seen two examples only, the thorax is black, with a large triangular rufo-ferruginous 

 patch on either side at the base, this extending forwards to the apex in one specimen. 

 The elytra vary in colour from testaceous-brown to black ; the suture is cinereo- 

 'pubescent, the rest of the elytral pubescence (except a short streak below the shoulders 

 in some specimens) partaking of the ground-colour ; there is no trace of a testaceous 

 humeral or submarginal stripe. A. amabilis may be known from its allies by its com- 

 paratively short, broad form, and the transverse, densely punctured thorax, which is 

 rounded at the sides in both sexes and has long and divergent hind angles, these being 

 slightly incurved at the tip. The elytra are a little rounded at the sides, gradually 

 narrowing from about the basal third in the male, and from the middle in the female. 

 One of the types is figured ; also a pale variety from Yolotepec. 



18. Agriotes scapularis. (Tab. XXIII. fig. 7.) 



Dolopius scapularis, Chevr. in Dej. Cat. 3rd edit. p. 108 \ 

 Agriotes amabilis, var. a, Cand. Monogr. Elat. iv. p. 366 2 . 



Moderately elongate, narrow, rather convex, shining ; black or piceous, the prothorax and propleurae rufo- or 

 flavo-ferruginous, the prothorax usually with a black or piceous patch in front, narrowing behind and 

 about reaching the middle ; the elytra with a more or less distinct submarginal testaceous vitta ; the 

 basal joint of the antennae, and the abdomen in part, ferruginous, the legs brownish or testaceous ; the 

 head and prothorax, except on the anterior dark mark, and the suture and submarginal vitta of the 

 elytra, yellowish-cinereous-pubescent, the pubescence on the rest of the prothorax and elytra fuscous, 

 that on the under surface pale yellowish-cinereous. Head densely punctured ; antennas extending slightly 

 beyond the hind angles of the prothorax in the male, a little shorter in the female, joints 2 and 3 short, 

 equal, 3 much shorter than 4. Prothorax considerably broader than long, very gradually narrowing from 

 the base forwards, more parallel in the male, the sides rounded in front and feebly sinuate behind ; the 

 hind angles long, narrow, and acute, slightly divergent, and obsoletely carinate ; the surface closely, finely 

 punctate, the punctuation becoming more diffuse at the base, canaliculate behind ; the marginal carina 

 faint, but distinct throughout. Elytra three times the length of the prothorax, slightly rounded at the 

 sides, narrowing almost from the base in the male, from about the basal third in the female, somewhat 

 pointed behind, the apices sharp ; punctate-striate, the interstices flat and rugulosely punctured. Beneath 

 densely and finely, the prosternum and propleurae sparsely, punctate. Hind coxal plates very little 

 widened inwards. 



Var. a. The submarginal vitta of the elytra obsolete ; the prothoracic black mark sometimes reaching to near 

 the base and less narrowed posteriorly (oval, or widening forwards), sometimes obsolete ; the elytra with 

 the suture and a submarginal stripe cinereo-pubescent. 



Length 5|-7, breadth ljf-2-L millim. ( <J S •) 



Eab. Mexico 1 2 (coll. Janson, ex Dejean), Cordova, Juquila, Yolos (Salle), Almo- 

 longa, Jalapa, Oaxaca (Hoge). 



Numerous examples of the vittate form, six of the variety, one of the latter (from 



