JiOBOPELTA. 55 



Key to the Siiecies. 



A. Node of pedicel squamiforni, compressed 



longitudinally, its upper niarpin narrow, 

 obtuse. 



a. Clypeus not dentate. 



«'. Medial joints of flagellum of antennae 



distinctly longer than broad L. ocellifera, p. 57. 



h'. Medial joints of fiagelkun oi antenna? 



not longer than broad L. birmana, p. 58. 



b. Clypeus trideutate anteriorly L. denti/obis, p. 58. 



B. Node of pedicel not compressed longitudi- 



nally, broader above, sub-cubical with ante- 

 rior and posterior margins. 



a. Antennae remarkably thick ; joints of fla- 



gellum 3-() much broader than long .... L. crassicorms, p. 59. 



b. Antenna; not remarkably tliick ; joints of 



riagellum all longer than broad. 

 a'. Head more or less striate. 



cr. Basal abdominal segment coarsely 

 rugose, the punctures longitudinally 



foveate L. aspera, p. 60. 



b'. Basal abdominal segment polished, 

 shining. 

 a^. Clypeus not carinate. 



a*. Node of pedicel low, not higher 

 than metanotum, broader than 



long L. kitteli, p. 60. 



b^. Node of pedicel higlier than meta- 

 notum, onh' about as broad as 



long L. altisquamis, p. 61 . 



b^. Clj^eus more or less distinctly 

 carinate or subcarinate. 

 a^. Colour yellowish or reddish brown. L. ivood-masoni,Tp. 62. 

 b*. Colour black. 



a'. Head strongly constricted pos- 

 teriorly, distinctly narrower 

 across the occiput than in 



front L. hodgsoni, p. 62. 



b'. Head not constricted poste- 

 riorly, as broad across the 

 occiput as in front, 

 a". Strife on head close, irregu- 

 lar, and broken. Length 



5-5-5 mm L. striatula, p. 63. 



6". Striae on head regular, not 

 broken, often not very dis- 

 tinct and wanting on upper 

 part of head. Length over 

 6 mm. 

 (r . Clypeus acutely carinate 



down tlie middle L. dtniinuta, p. 6L 



//. Clypeus barely subcarinate. 

 In some specimens carina 

 entirely wanting L. palliscri, p. 63. 



