1883.] beetles of the family erotylid^. 79 



8. Megalodacne ftjrcata. 



Nigra, nitida, capitis basi parce sat profunde punctata, elytris 

 obsolete punctato-striatis, singulis maculis duabus Jlavis, una 

 humerum subcingente, extus denticulis duobus parvis ramoque 

 parvo, altera versus apicetn arcuata, apicibus et dente in medio 

 retrorsum acute productis. 

 Long. 18-19 millim. 



ITab. W. Africa : Isabu, Old Calabar, &c. 



Closely allied to M. grandis, and equal to the smaller individuals 

 of that species in size, but easily distinguished by the colour of the 

 markings on the elytra being pale yellow instead of orange-red, and by 

 their form : they are much less diffused, and narrower ; of the 

 humeral one the " ramus" or branch which turns towards the suture 

 is much less developed, being in fact only a tooth-like projection ; the 

 hinder one is an arcuate fascia, much produced behind at the margin, 

 and with two teeth on the apical side near the suture. The basal 

 side of this fascia is almost even. 



The thorax is rather more opaque than in M. grandis, the elytral 

 puncturing rather more definite. 



9. Triplatoma philippinensis. (Plate XVIII. fig. 3.) 



Nigra, nitida, vix punctata, prothorace oblongo, parum attenuato, 

 adangulos anticos guttis duabus sinualis postice acuminntis rubris; 

 elytris singulis striis tenuissimis obsolete punctatis septem, fasciis 

 duabus ad suturam late interruptis, haud profunde dentatis, macu- 

 laque parva ante apicem rubris. 

 Long. 16-18 millim. 



Hab. Philippine Islands, i\lindanao (Semper). 

 The only species to which this can well be compared is T. attenu- 

 ato, Crotch, from which it differs by its smaller size, by the form of 

 the thoracic stripe near the front angles, which is here curved, wide 

 in front and acuminate behind. The third or apical fascia is here 

 reduced to an indented triangular spot. I have only received two 

 specimens. 



10. Triplatoma andamanensis. (Plate XVIII. fig. 2.) 



Nigra, parum nitida, subparallela, capite prothoraceque minute 

 punctatis, hoc basi upiceque aqualiter latis, ad angulos anticos 

 macula ritfa trapeziformi, retrorsum exciso ; elytris fasciis duabus 

 rectis, una basilari, altera subapicali, utrinque dentatis, rufis, sin- 

 gulis striis tenuissime puiictatis fere obsoletis sex. 

 Long. 15 millim. 



Hab. Andaman Isles. •*" 



Readily distinguished by its small size, and by the two fasciae similar 

 to those ill T. sexnotata, but which are yellow instead of blood-red, 

 by the thoracic angular mark beiuy a squarish spot indented on its 

 posterior margin, and by its punctured striae, which are more deeply 

 impressed upon the elytra than iu T. sexnotata. 

 In my own and Mr. G. Lewis's collections. 



