76 REV. H. s. GORHAM ON NEW [Mar. 6, 



1. Encaustes crotchi. (Plate XVIII. fig. 7.) 



Niger, nitidus ; capita distincte parce punctata, proihorace suh- 

 quadrato immaculato, elytris Icevibus pu?ictis hand discretis, 

 interstitiis obsoleiissime costatis, macula humerali transversa 

 alteraque triente ante apicemfulvis. 

 Long. 22 millim. $ . 

 Hal. Philippine Isles, Bohol (Semper). 



The wholly black thorax will separate this from any of its allies : 

 the species to which it comes nearest is E. humeralis, Crotch, with 

 which it agrees in having a red spot on each shoulder, touching the 

 base of the elytra. Crotch's specimen of E. humeralis is from New 

 G-uinea ; I have a second specimen from the Philippine Islands taken 

 by Semper at Pulobatu, which I have compared with the type at 

 Cambridge and beheve to be identical. 



2. Micrencaustes torquatus. (Plate XVIII. fig. 5.) 

 Niger, nitidus, verticis ptmcto, prothoracis macula irregulari, 



elytrorum annulo humerum subcingente retrorsum ramos duos 

 emittente, lunulaque infra medium fulvis . 



Long. 16 millim. 



Hub. Africa occid., Old Calabar {coll. Murray). 



Allied to M. sinuatus, Lac, but differing in being rather longer 

 and narrower, in having the sides of the thorax scarcely rounded but 

 narrowing a little in front, the disk distinctly punctured (in some 

 examples of M. sinuatus a fine sparse puncturing is visible), and 

 especially in the form of the humeral ring, which surrounds a much 

 smaller space, in fact only the humeral callus, and emits a branch 

 backwards towards the scutellum, and another obliquely towards the 

 middle of the elytra. The posterior crescent is strongly recurved. 

 The elytra exhibit very obsolete fine rows of punctures, which are 

 quite invisible in M. sinuatus. A single specimen, marked Encaustes 

 n. sp. by Crotch, from Murray's collection, now in my possession. 



3. Micrencaustes plagiatus. 



Niger, parum nitidus, capitis vertice, thoracis macula uirinque 

 difformi, elytrorutnque basi indeterminate, vitta submarginali, et 

 macula apicali intra marginem sanguineis ; prothorace valde 

 convexo, anyulis anticis acutis paululum productis, posticis sub- 

 rectis. 

 Long. 17 millim. 

 Hab. Java 1 



Allied to, but amply distinct from, 31. lituratus, MacLeay. The 

 prothorax is quite of a different shape, not narrowed in front, the 

 base not wider than the front, but the sides more rounded ; the red 

 mark on each side is also different in shape, having three distinct 

 branches like that in Encaustes verticalis. 



The elytra are not punctured in series, and the red patch at the 

 base united with the apical patch by a stripe along (but not touching) 

 the margin will readily separate this species from M. lituratus or any 

 other described species. 



