83 



worlli while to mention, tliat tlie Hgnrc of B. funnicnriiis given by 

 Aubc (I'sel. Mon., pi. ix, f. 1) is extremely deceptive; tlio antennae 

 are those of a male individnal, while the legs arc not those of B.for- 

 micfirius, either 3* or 5 , and are indeed so diffei"ent, that they 

 must have been entirely supplied by the imagination of the artist, who, 

 however, was Aube himself. 



Trooastek, nov. gen. 



Corpus elonqatum, suh-depressum. Antenna; hasi valde distnntes. 

 C iput sub-iriangulare, nullo modo rostratum. Faljyi maxillares breves. 

 Thorax cordatus. Coxis anferioribus elongatis longe exsertis. Pro- 

 stermnn magnum. Abdomen marginatum, segmentis 5 dorsalihus per- 

 sj)icuis sed quinto parvo transversa, fere condito, segmentis 4 primis 

 sub-cequalibus ; segmentis ventralibus sex p)crspicuis. Pedes trochan- 

 teribus brevibus, coxis post ids prominentihus, hasi contiguis ; tarsi 

 unguicuh instructi. 



This genus is allied to Euplectus, but differs therefrom by the 

 peculiarly prominent anterior coxaD : its facies is rather that of 

 Trichonyx. I have only been able to make a very imperfect examina- 

 tion of the single individual I possess, but I have no doubt a complete 

 knowledge of its characters will prove it to be a very distinct genus. 

 Indeed, it possesses slender much exserted anterior coxjb in com- 

 mon with the Xorth American Phexius insculjjfus, and the Australian 

 Batrisus hamatus, King (not a member of the genus Batrisus) ; and I 

 believe its true position will be found to be in the neighbourhood of 

 those insects. 



Trogaster aberra^s, n. sp. 



Castaneus ; oculis minutis ; protliorace latcribus medio angulatis, 

 diKco longitudinalitcr canaliculafo ; cigtris protliorace pauJo hngioribus, 

 stria suturali intrgra. Long. corp. 2 mm. 



Mas : abdomine segmentis ventralibus IJ ct 4 medio depressis ; seg- 

 ment o 5° profunde emargijiato, medio brevissiino ; 0" magno, fovea maxima, 

 circulari, nitida insigne. 



Anteniifc shorter than head and thorax, Ist and 2nd joints longer and stouter 

 than the following, the 1st about twice as long as the 2nd, joints 3 — 8 small and 

 vcrj short, scarcely difToring from one another, 9th broader and longer than the 

 8th, sub-quadrate, 10th joint shorter but broader than Dth, strongly transTcrse, 11th 

 joint large, stouter than the 10th, and longer than Ulli and 10th together. Head 

 short and broad, the elevation on each side over the antenna abruptly defined in- 

 wardly, so as to form a kind of deep impression or fovea, the vertex in the middle 

 with an indistinct fovea ; the eyes are very small, and placed in the middle of tiie 



