NEW SPECIES OF CEKATINA FROM BORNEO. 285 



female should be preferred; but the recent usage seems to be 

 that the name which has the prior number in the work should be 

 applied to both sexes, although both names were published at the 

 same time. For instance, " Jurtina" ? (Linn. Syst. Nat. x. 

 No. 104, p. 475 (1758) ), has superseded jajiira <? , No. 106, in the 

 same work, and " Samiio " g' (Linn. Syst. Nat. x. No. 48, p. 506) 

 has given place to russula ? , No. 78, p. 510, in the same work. 

 So the name chosen does not depend upon sex. 



In this country all the old authors called our insect " Camilla" 

 —Harris (1766), Lewin (1795), Donovan (1798), Haworth (1803), 

 Curtis (1824), Stephens (1828), Wood (1833), and Westwood 

 (1841)— and the first record I can find of the name " sibilla " 

 being applied to our insect in this country is in Doubleday's first 

 Synonymic List in 1850. 



As Linnseus, in 1768, referred " Camilla " to the insect of that 

 name in his previous work of 1764, the name sibilla ought, there- 

 fore, to be abandoned, and that of Camilla given to both sexes of 

 our insect, and the continental species, as Mr. Kirby has already 

 stated, will take the name of " drusilla," Bergstrasser, Nomencl. 

 iii. pi. 69, figs. 5, 6 (1779), as it is impossible to have two closely 

 allied species under the same name in the same genus. 



Lynmouth. 



DESCRIPTION OF A NEW SPECIES OF CERATINA 

 FROM BORNEO. 



By p. Cameron. 



Ceratina cosniiocephala, sp. nov. 

 Fulvous ; the vertex, laterally extending to the end of the top of 

 the eyes, obliquely widened below ; the occiput, the front broadly, a 

 broad line running down from each antenna to opposite the end of 

 the eyes, where it turns outwardly along a furrow, a line on the sides 

 of the base of the mesonotum, broadening outwardly, a transverse 

 one on the apex, an irregular broad line on the sides of _ the apex of 

 the second aladominal segment, a regular one, not occupying quite the 

 half of the base of the third, a broader one on the fourth and the fifth 

 except for an irregular longitudinal mark in the middle, black ; the 

 following spots are bright lemon-yellow : two oval spots in the centre 

 of the front, a transverse spot below the antenna, rounded and nar- 

 rowed above, the sides also rounded but not narrowed, below it is a 

 large mark, wide but narrowed below, its top bluntly rounded, its 

 apex prolonged laterally, but not so widely, to near the eyes, a line 

 along the inner orbits gradually widened from the top to the bottom, 

 and with an irregular inner edge, the labrum except for a fuscous 

 spot on either side near the top, the basal, widened half of the man- 

 dibles, almost the inner half of the outer orbits, almost the whole of 

 the prothorax, a line along the outer edge of the mesonotum, two 

 narrower lines in the centre, on the apical two-thirds, scutellums. 



