1P20.J 221 



broader than lonrr, obliquely narrowed from the base ; closely punctured, sulcate 

 down the middle posterioidy, with six prominent conical tubercles — two on the 

 anterior margin, two in a line with them on the disc, and one on each side 

 nearer the base, — and well-developed ocular lobes. Elytra broad, subtriangular, 

 uneven, undulate at the sides as seen from above ; deeply punctate-striate, the 

 interstices somewhat convex, the alternate ones here and there raised, and 

 the huuienil callosities prominent. Metasternuni slightly depressed in front 

 between the widely separated intermediate coxae. Ventral segments and 

 pygidiiim closely punctured, the latter large and convex in c{ , much smaller 

 in $, the fifth ventral segment in $ longer and much smoother than in (^ . 

 Femora unarmed, sulcate beneath, the posterior pair much thickened. Tibiae 

 rounded externally at the base. Tarsal claws strongly toothed. 

 Length 25-8, breadth lf-2 mm. (6 2-) 



Hah. Costa Eica, Juan Villas (P. P. Calvert : 5.X.1909). 



One pair, the $ larger than the J , labelled as having been found 

 on the " sloping sides of laguna along brook." This species agrees with 

 Hi/pocoeliodes Kirsch ( = Orcliesiomerus Dietz) in having strongly 

 thickened posterior femora, but it is not very nearly allied to any of 

 the twelve described Central American members of that genus, the 

 pronotum being as sharply sexdentate as in the Mexican Dietzella 

 (^Goelogaster^ sextuherculata Boh., an insect superficially resembling 

 H. sexnodosus. The stout posterior femora separates the present species 

 from Auleutes and the other N. American genera of the Coeliodes-^roM^ 

 tabulated by Dietz. 



Diahrotica occlusa, n. sp. 



Moderately elongate, shining ; pale green, the labrum, base of the head, eyes, 

 and scutellum, and the elytra with a common, transverse, subquadrate patch 

 extending from the base to near the middle, and an arcuate subapical fascia — 

 these markings connected along the suture, but not reaching the outer margin, 

 the basal patch enclosing a pale yellowish spot on the disc of each and the 

 subapical fascia followed by a similar spot,— black or piceous, the antennae 

 (joint 1 excepted), tibiae, and tarsi reddish-brown. Head almost smooth, 

 carinate down the middle anteriorly and deeply foveate in the centre above ; 

 antenuae filiform, as long as the body in J, a little shorter in $ , joints 2 and 3 

 very short. Prothorax subquadrate, narrowed anteriorly, almost smooth, 

 deeply bifoveute on the disc. Elytra much narrower than the prothorax, 

 widened posteriorly, rounded at the apex, the margins explanate ; finely 

 rugulose and closely punctui-ed, longitudinally grooved ou the disc, the outer 

 groove limited externally by a rather prominent carina extending downward 

 from the humeral callus. 



Length 4-4^, breadth 2-2^ mm. ( c? $ •) 



Hah. Costa Rica, Guacimo, Atlantic slo^^e (P. P. Culvert : 

 6.vi.l909). 



Two specimens, the S having the black elytral markings a little 

 more extended than the $ . Near D. scutellata Jae., from the Atlantic 



