1857.] Entomological Papers. Ill 



Trib. Galeritidse. 



Heteroglossa. n. g. JV". 



Corpus oblongum, subparallelum, depressum tenuiter hirsutum. 

 Caput mediocre oculis seiniglobosis, sat prominulis ; collo brevi. 

 Mentum sat profunde subquadrate emarginatum, lobis maguis extus 

 fortiter rotundatis, apice abrupte acuminatis, dente magno excavato, 

 apice inflecto obtuso, magis minusve profunde sinuato. Ligula 

 subcorriea apice libera, truncata, vel quadrata vel obconica vel 

 leviter bisinuata ; paraglossis cylindricis, margiuem anteriorem lon- 

 gissime superantibus, magis minusve arcuatis. Palpi birsuti art. 

 ultimo sat elongato, subcylindrico, apice truncato vel subtrigono. 

 Labrum. transversum antice emarginatum. Mandibular validae, 

 trigonsB, apice arcuatag basi pluries dentatae. Antennae robustae 

 corporis med. attingentes, art. 1° incrassato sequentibus 2 longiore, 

 2° parvo, 3-11 subaequalibus. Thorax subcordatus, basi transver- 

 sim truncatus leviterque prolongatus. Pedunculis brevis. Elytra 

 apice fortiter subquadrate truncata, costata, costis 3 6 majoribus, 

 in iuterstitiis subtilissime bicostulata, in sulcis (sulco e tribus inter 

 costas binas majores medio excepto) tenuiter pilosa, in omnibus 

 transversim rugulosa. Pedes anteriores tibiis sat fortiter emargi- 

 natis, tarsis maris art. 1-3 leviter dilatatis, subtus squamularum 

 seriebus 2 munitis, art. 1° elongato-trigouo, 2-3 rotundato-trigonis, 

 3° praecedente parum minore, 4° parvo cordato 3° plus sesqui minore, 

 his omnibus angulis acuminatis, 5° magno, unguibus simplicibus. 



This diagnosis maj appear somewhat vague, still I have been 

 unable to express the characteristics of the insects from which it 

 is drawn in more precise terms, although they have features quite 

 peculiar to themselves by which they are easily recognised when 

 once seen. 



The points on which the 3 spec, which form this g. more or less 

 disagree are the following: (1) the labrum : this is more transverse 

 in H. elegans and less deeply emarginated in II. riificollis than in 

 the other 2 spec, respectively — still in all 3 it is emarginated and 

 has, moreover, the peculiarity of being furnished with bristles at the 

 2 anterior corners. (2) the mentum : this is subquadratically emargi- 

 nated, the lobes beiug strongly rounded on the outer side, and 

 abruptly acuminated at the apex, at the base of the emargi nation 



