566 MONOTOMID£. 
evidently somewhat variable. The male is rather larger than the female and has a 
larger head; the terminal supplementary segment is very conspicuous. 
H. subtestaceus is variable as to the colour of the elytra. I am indebted to M. René 
Oberthiir for sending me Reitter’s types; I have no doubt that the “ var. t discotdeus” 
of Reitter (/. ¢.) belongs to the same species. 
2. Hesperobeenus stipes, sp.n. (Tab. XVIII. fig. 1.) 
Opacus, pubescens, nigricans ; capite thoraceque dense punctatis, opacis, rufo-obscuris ; elytris basi rufescente, 
fortiter striatis, seriatim pubescentibus ; antennis pedibusque rufis; prothorace area levigata fere nulla, 
haud impresso. 
Long. 34 millim, 
Hab. Guatemata, Volcan de Agua 8500 to 10,500 feet (Champion). 
Distinguished from H. subtestaceus by the less depressed form and the coarser 
striation of the elytra; the front angles of the thorax are very much rounded, and the 
sides much narrowed behind. The pygidium is elongate, moderately bent down. 
We have received only one male; it is in moderately good preservation. 
EUROPS. 
Europs, Wollaston, Ins. Maderensia, p. 149 (1854). 
Mimema, Wollaston, Journ. Ent. i. p. 185 (1861). 
The insects placed in this genus show various slight distinctions in the structure of 
the feet and acetabula, but these characters cannot at present be considered of generic 
importance. Numerous species from various parts of the world have recently been 
added to Europs, of which two only are recorded in the Munich Catalogue, where the 
genus, in accordance with the views of Wollaston, as to its alliance with Rhizophagus, 
is placed in Nitidulide. I have acted on the view that Awrops at present 1s. 
distinguished from Bactridiwm by the club of the antenne being two-jointed, the ninth 
joint being strongly different from the eighth. 
1. Europs rhizophagoides. 
Europs rhizophagoides, Reitter, Verh. Ver. Brinn, xi. p. 43 (1872) (excl. var. apicalis) ’. 
Subdepressus, rufescens, corpore plus minusve infuscato ; elytris stramineis, ad apicem plus minusve discrete 
infuscatis ; prothorace ante basin transversim impresso, utrinque fortiter punctato; elytris subtiliter 
seriatim punctatis; pygidio parum porrecto. 
Long. 24-3 millim. 
Hab. Mxxico ! (coll. Oberthiir), Las Vigas (Hoge); GuaTEMALa, Aceituno, Capetillo 
(Champion), Coban (Conradt). 
Antenne with the ninth and tenth joints rather large. Head deeply bi-impressed in 
front, somewhat sparingly but distinctly punctured. Thorax subquadrate, but little 
narrowed posteriorly, with a small very distinct transverse impression behind, which 
is curved forwards on each side and soon becomes indistinct; before this there is 
