1922] NATURAL SCIENCES OF PHILADELPHIA 267 



Singapore, British Straits Settlements, (from C. F. Baker), 1 9 . 



The remarkable spatulate development of the spines of the 

 cephalic limbs is well figured by Carl. These spines have their 

 ventral surfaces concave and supplied with numerous microscopic 

 black spinulae. 



Carl has apparently (unlike most other authors) counted the 

 distal pair of minute spines in giving the count for the cephalic 

 and median tibiae. In the specimen here recorded the cephalic 

 tibiae bear ventrad six pairs of very elongate, specialized spines 

 and a pair of minute distal spines. The median tibiae have ventrad 

 six external and five internal moderately elongate, slender spines 

 and a minute distal pair of spines. 



In this specimen we note further that the median trochanters 

 are armed ventrad with a single small spine, the ovipositor has its 

 margins minutely serrulate distad and the subgenital plate is 

 minutely but suddenly concave-emarginate at its apex. 



Length of body 16, length of pronotum 4.2, greatest width of 

 pronotum 3, length of pronotal lateral lobe 3.8, depth of pronotal 

 lateral lobe 1.7, length of tegmen 18.7, width of tegmen 2, length 

 of longest cephalic tibial spine 3.4, length of cephalic femur 10.3, 

 length of ovipositor 11.8 mm. 



LIPOTACTES Brunner 



1898. Lipotactes Brunner, Abh. Senckenb. Naturforsch. Ges., XXIV, p. 274. 

 1909. Mortoniellus Griffini, Wiener Ent. Zeit., XXVIII, p. 107. 



The above synonymy is wholly due to Brunner having assigned 



his genus to the Listroscelinae, while, when Griffini submitted his 



specimen, it was referred by Karny, Redtenbacher and Werner to 



the Tympanophorinae. It appears almost certain that the latter 



subfamily, based primarily on the absence of a dorso-internal spur 



on the caudal tibiae is of no value. The much lower significance 



of such differentiation is well understood if it is noted that the 



North American subgenera of Conocephalus, for instance, are in a 



number of cases thereby separable, 96 



Lipotactes maculatus new species. Plate XV, figure 12. 



This remarkable insect is readily distinguished from the Bornean 

 genotype, L. alienus Brunner and the Sumatran L. karnyi (Grif- 

 fini) by its much smaller size and varied coloration. 



It is odd that, though three species are now known, a male of the 

 genus has as yet not been described. 



96 See Rehn and Hebard, Trans. Am. Ent. Soc, XLI, p. 226, (1915). 



