44 



I am imlobted tu Mr. Bates for tlio iiidividuul described and have 

 mucli pleasuro in uauiing tlie species in Ins honoiir. 



Synaiisis Tlioas (n. sp.) : Suhdcprrssa. nifjra, nitida; chjpco antice 

 medio inciso; vertice mutico ; f/enis hnmatis; prothorace subtiliter pune- 

 tato , angulis anUcis prominulis rectis , sttUus Jovea puhifera profunda; 

 ehjtris striatis , striis minus evidenter punvtatis. — Lunj^'. 24, lat. 

 13 mill. 



Copris Thoas Dej. Cat. 3. ed. p. 154. 



The Upper surfacc of the liead is rugosely sculptured, tbe Ver- 

 tex is convex but not tuberculate. Tbe tborax is finoly piuictiired, 

 the uotch at tbe front margin small. Tbe striae of the elytra are 

 fine but ratber deep, the interstices finely punctured. On tbe undor 

 surface the front portion of tbe tborax is occupied by a deep trans- 

 verse pubescent fovea. Tbe sides of tbe sternum are sparingly but 

 coarsely punctured. Tbc abdoinen is ()pa(jue being finely sculptured. 

 The niiddle tibiao are slender. Tbe bind femora tuberculn.te, tbe bind 

 tibiae very peculiar in form, viowed from inwards and above they are 

 extremely slender but abruptly dilated at the extremity, but louked at 

 from bebind they seem stoat, and not so broad at the extremity as 

 a little above it. 



This species probably inhabits Java, the single individual I have 

 seen may be eitber a male or female: there is no tbick fringe of 

 ciliae on tbe bind tibiae, but tbe two apical segments of the abdomen 

 are very short. 



Obs. This in an interosthig and important insect. Its resem- 

 blance in form to MegatJwpa is considerable, and the bind legs seem 

 to offer a real approach to the Ateuchus-&ix\xQi\\XQ . It has some im- 

 portant points of difierence from Ä. brahmina and 8. Baten, among 

 which must be noted that the basal segments of the abdomen are more 

 elongate, and that the peculiar additional piece (characteristic of the 

 genus) which is placed between the side wings of the metasternum 

 and the outer margin of tbe middle »Goxal cavities, is here narrow 

 and parallel , while in tbe other two species mentioned it is nmch 

 broader in its anterior part. 



M. van Lansberge has recontly described a species of Synapsis 

 (Comptes-Rendus Ent. Soc. Belg. 1874. p. CXLIV) undor tbe namo 

 of S. Ritsemae; this species though Coming from Java is certainly 



