PARASTASIA. 37 



Kfy to the Species. 



1 (22) Olypeiis strongly bideutate iu front. 

 a (13) Pygidium everywhere densely 

 sculptured. 



3 (10) Pronotum smooth behind or only 



lightly punctured. 



4 (7) Front tibia with the two upper 



teeth close together. 



■5 (6) Scutelluni long and sharp-pointed ; 

 elytra without posterior yellow- 

 spot nt/opicta, Westw., p. 37. 



■6 (5) Scutelliun short and blunt; elytra 



witli posterior yellow spot birmatia, Arrow, p. 38. 



7 (4) Front tibia with the two upper 



teeth wide apart. 



8 (9) Elytra not, or only very lightly, 



punctured basalis, Cand., p. 39. 



9 (8) Elytra deeply punctured cingala, Arrow, p. 39. 



10 (3) Pronotum strongly punctured. 



11 (12; Pronotum not longitudinally im- 



pressed andamanica, Ohaus, p. 40. 



12 (11) Pronotum longitudinally impressed, coiifluens, Westw., p. 41. 



13 (2) Pygidium not everywhere densely 



sculptured. 



14 (17) Olypeus very small, with sharp 



teeth or ridges at the base. 



15 (16) Small and elongate heterocera, Ohaus, p. 41. 



16 (15) Larger, broad and globose bimaculata, Guer., p. 42. 



17 (14) Clypeus not very small, without 



sharp teeth or ridges at the base. 



18 (19) Very small ; pronotum coarsel}' 



punctured mdica, Ohaus, p. 43. 



19 (18) Not very small ; pronotum tinely 



punctured. 



20 (21) Red, with the head black sulcipennis, Gestro, p. 43. 



21 (20) Red, with the head, scutelluni and 



base of elytra black altemata, Arrow, p. 45. 



22 (1) Olypeal margin bluntly bilobed. 



23 (24) Elytra punctured in straight lines . luteola, Westw., p. 45. 



24 (23) Elytra punctured in wavy lines . . uchracea, Waterh., p. 46. 



7. Parastasia rufopicta. (Plate I, fig. 4.) 



Parastasia rufupicta, AVestw\,* Proc. Ent. Soc. Lond. 1841, p. 53 j 

 id., Trans. Ent. Soc. Lond. iv, 1845, p. 93, pi. 6, fig. 3. 



Black, extremely smooth and shining above, with a ragged 

 transverse orange band crossing the elytra from side to side upon 

 their anterior half, immediately behind the scutellum, and sendino- 

 two small branches forward to the front edge of the elytra. 



The body is rather broad, compact and very convex. The 

 head is irregularly rugose, armed with two sharp reflexed teeth 

 at the front margin and a slighter one at each end of the clypeal 



* An asterisk after the name of a species indicates that a type or co-tjpe 

 has been examined, 



