LTCOSTOMUS. 15 



Lycostomus angustatus. 



(Plate III. fig. 9.) 



Piceo-fuscus, elongatus, angustus ; thorace elytrisque sordide 

 flavis, illo medio plus minusve infuscato. 



Long. 4|-51in., lat. l|-21in. 

 Hah. Java {J. C. Boiuring, Esq.). 



Distinct from all its allies by its elongate narrow form. Rostrum 

 yeUowish, a little longer than broad. Antennae half the length of 

 the elytra, slender, fuscous, the basal joint a little paler. Thorax 

 elongate trapeziform, much narrower in front ; the disk a little 

 fuscous ; the sides narrowly reflexed, rectilinear ; the posterior angles 

 very acute. Scutellum fuscous. Elytra very long, narrow at the 

 base, moderately enlarged posteriorly ; the sides rectilinear for two 

 thirds their length, then gently arcuate. Legs fuscous, the coxae 

 paler. Abdomen shining, pitchy. 



Lycostomus debilis. 



(Plate III. fig. 8.) 



Nigrescens, subnitidus ; thoracis lateribus elytrisque fusco-testaceis, 

 his rugosis. Long. 5|-7 lin., lat. 3 lin. 



Hab. N. China (J. C. Boiuring, Esq.). 



Teguments delicate and less opaque than in any of its allies. 

 Rostrum long and slender. Antennae long and slender, the third 

 joint very long (sometimes obscure testaceous). Thorax rounded in 

 front, widened behind, the posterior angles rather acute, the anterior 

 and lateral margins obscure testaceous, the sides only slightly re- 

 flexed. Scutellum blackish. Elytra long, slightly wider at the 

 apex, brownish testaceous, moderately shining, the intervals between 

 the costae very rugose. Sides of the abdomen pitchy. 



Lycostomus striatus. 

 (Plate in. fig. 11.) 



Elongatus, subparallelus, nigrescens ; rostro sat brevi ; thorace 

 lato, lateribus parum reflexis, flavis ; elytris subparallelis, postice 

 parum latioribus, sordide testaceis, multicostatis, interstitiis rugu- 

 losis. Long. 7 lin,, lat. 2| lin. 



Hab. India (M'Clelland). 



Rostrum a little longer than its width at the base. Antennae 

 rather short. Thorax very broad ; the sides much expanded, scarcely 

 reflexed, yellowish. Scutellum black. Elytra long, not quite as 

 broad as the thorax at their base, a little wider towards the apex, 

 testaceous, slightly tinged with blackish round the scutellum ; each 

 elytron with nine costae, the alternate ones rather irregular, inter- 

 stices strongly punctured and with numerous irregular transverse 

 rugae. 



