TEMNOCHILA. 403 
The synonymy is very doubtful; and the more: difficult to unravel from the fact that 
describers have not satisfactorily distinguished the two species, and may very probably 
have: mixed them together. It seems clear, however, that the brief description of 
Fabricius! applies better to this species than it does to T. chlorodia; and his name 
being the older and being adopted for the species, the subsequent names are of 
comparatively little importance, and it is not worth while to discuss them at length 
at present. 7’. acuta, Lec.?, is given amongst the synonyms on the authority of a pair 
sent under that name to the British Museum by Leconte himself. 
The varieties from Tres Marias Islands and from Michoacan may possibly prove to be 
distinct; but I have only seen one specimen from the former and two from the latter 
locality, and the characters do not seem to be important with the exception of the 
obsolescence of the channel on the head. 
T. virescens is the most central species of the genus, and in fact is a connecting link 
between the species of the division in which I have placed it, and the division with very 
fine thoracic margins, and not acute front angles to the thorax. 
** Humeral angles of elytra obtuse or rounded. (Species 19-29.) _ 
15. Temnochila planipennis. 
Trogosita metallica, Reitter, Verh, Ver. Briinn, xiii, Abhandl. p. 27 (nec Perch.}". 
Temnochila planipennis, Léveillé, Bull. Soc. Ent. Fr. 1889, p. xliv’. 
? Temnochila erea, Leconte, Proc. Ac. Phil. 1858, p. 63°. 
Subdepressa, late viridis, sat nitida, antennis cyanescentibus, articulo basali viridi, clava brevi; capite protho- 
raceque minus fortiter punctatis, illo profunde canaliculato, hoc minus elongato, posterius angustato, 
margine laterali in medio sat conspicue impresso, angulis anterioribus porrectis; elytris tantum obso- 
letissime punctatis ; area submentali parcissime punctata. 
Long. 10-20 millim. 
Mas, area submentali medio fasciculo tenui transverso munita ; abdomine segmentis 1°-4™ ad latera punctis 
~ adjectis sat numerosis. — . 
Hab. Mexico 12, Las Vigas, Toluca, Salazar, Misantla (Hége), Jacale (Sallé), Popoca- 
tepetl (Godman), Volcan Ixtaccihuatl 11,500 feet (Richardson). 
We have received a large series of this species, which appears, however, to be local. 
The majority of our examples were found at Las Vigas by Hoge; the specimens from 
this locality do not vary much except in size. The small series: from Misantla are of a 
more brilliant and golden colour, are of large size, have the antenne a little more 
‘slender and the hind margin of the prosternum a little thicker. The pair found by 
Mr. Godman.in a pine-forest on Popocatepetl represent apparently a well-marked 
variety with more elongate thorax, which, too, is slightly depressed along the middle ; 
they are unfortunately in a very bad state of preservation. | 
The series of six specimens from Jacale contains two very remarkable varieties, the 
other four being quite normal; one of these varieties apparently agrees with the pair 
3 F* 2 
