246 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40. 



PSEUDOMELECTA INTERRUPTA Cresson. 



Kerrville, Texas, April, 1907 (P. Durham). 



COELIOXYS (LIOTHYRAPIS, new subgenus) APICATA Smith. 



One female; Trong, Lower Siam, January-February, 1899 (W. L. 

 Abbott). This agrees with an Indian C. apicata from F. Smith's 

 collection. The species is taken as the type of a new subgenus 

 Liothyrapis, distinguished by the absence of hair on the eyes. Ac- 

 cording to Friese and others, C. apicata is a synonym of C. decipiens 

 Spinola, described from Egypt, and the same species is said to 

 extend to South Africa, whence it was described as C. verticalis 

 Smith. I have a female of C. verticalis from Doctor Brauns, col- 

 lected at Willowmore, Cape Colony, December 1, 1904. It is a 

 different looking insect from apicata, although structurally almost 

 the same. The apical part of the second abdominal segment (beyond 

 the groove) is shorter, the more abundant pale pubescence gives the 

 insect a hoary appearance, the legs are largely red, and the wings 

 are hardly so dark. I am satisfied that apicata and verticalis should 

 be regarded as different species. 



I have no material of the genuine C. decipiens, but according to 

 Spinola it has black legs, and the wings hyaline, only smoky at the 

 distal margin. Probably it is separable from apicata on the one hand 

 and verticalis on the other. 



COELIOXYS SIAMENSIS, new species. 



Female. — Length 12 mm.; black, including legs and antennae, with 

 white pubescence ; hair on inner side of tarsi pale golden ; eyes pale 

 green, their hair short but thick; face with much white hair; vertex 

 with very large coarse punctures ; cheeks behind eyes densely covered 

 with pure white hair, this white area sharply bounded behind by a 

 keel or ridge; mesothorax and scutellum with exceedingly large 

 punctures, those on scutellum more irregular and less dense; hind 

 margin of scutellum turned upwards, more or less notched in the 

 middle; lateral teeth strong; prothorax, margins of mesopleura, 

 tubercles, and metathorax covered with white hair, which also 

 forms a spot behind each tegula, a pair of spots on anterior margin 

 of scutellum, and a tuft below each scutellar tooth; area of meta- 

 thorax irregularly plicate at base, otherwise smooth; tegulse piceous; 

 wings with about the apical half dark fuscous; spurs dark reddish 

 brown; abdomen with slight purple tints, shining, strongly but 

 sparsely punctured, with narrow pure white hair-bands at the 

 apical margins of the segments, broadly interrupted in the middle; 

 last dorsal segment very finely punctured, narrowed and keeled 

 apically; last ventral elongate-conical, not notched at sides, consid- 



