274 



entirely absent ; the puncturation of the underside, while finer 

 and closer than that o£ the upper surface, is more evenly dis- 

 tributed than I should judge from the description that it is in 

 Mr. Bates' insect, and the hinder angles of the thorax, instead 

 of being obtuse, are exactly right angles, and owing to a very 

 faint sinuation of the sides immediately in front of them ap- 

 pear to be slightly directed obliquely outwards. It is quite 

 possible that this may be a distinct, very closely allied species, 

 but nevertheless the differences are not, I think, inconsistent 

 with the possibility of specific identity. 



ULOMOiDES, gen. nov. 

 Antennae subfiliformes ; oculi prominentes ; tarsi simplices. 



Mentum rounded iu front, a strongly elevated keel down its 

 middle ; apical joint of the labial palpi sub-securiform, of the 

 maxillary large and moderately securiform ; mandibles bifid at 

 the extremity ; labrum transverse, emarginate in front ; 

 epistoma bent down in front, very rapidly widened backwards, 

 the suture obsolete ; antennary orbits moderate, not produced 

 laterally so much as the eyes ; antennae nearly as long as the 

 head and thorax together ; joints two to four, narrow, not 

 transverse, three nearly equal to two and four together, five to 

 teu about equal in width, but gradually shortening till nine 

 and ten are moderately transverse, eleven of same width, but 

 longer ; femora very little narrowed at base ; tibiae not den- 

 ticulate, tarsi hairy beneath, moderately slender, basal joint 

 of posterior pair equal to the next two together, apical joint of 

 all moderately elongate ; general form depressed. Trochantins 

 of intermedia.te coxae not visible. 



The above-mentioned characters will differentiate this from 

 all other described genera. It differs from most of the Ulomidcs 

 in having somewhat elongate antennae, and eyes more prominent 

 than the antennary orbits, in which respects it resembles 

 Jlesotretis, but differs from that genus in respect of its slender 

 simple tarsi and antennae devoid of a club. 



JJ. hmneralis, sp. nov. Subparailelus ; sat depressus ; minus 

 nitidus ; ferrugineus, capite postice, elytris (humeris 

 exceptis) abdomineque picescentibus; capite prothoraceque 

 confertim subtiliter punctatis ; elytris leviter striatis ; 

 striis fortiter, interstitiis planis subtilius, punctulatis. 

 Long. 2 1. 



The prosternum is finely and very closely punctured, except 

 its intercoxal process, which slopes downward somewhat behind 

 the coxae, and then is turned up at the apex ; the metasternum 

 and hind body are finely and rather closely punctured in the 

 middle, very sparingly and very strongly at the sides. The last 



