384 MR. E. S. BAGNALL : CONTRIBUTION TOWARDS A 



Profchorax five-eighths the length of head ; spines at posterior angles 

 longest ; posterior-marginal pair shorter, and those at the anterior angles 

 and the mid-lateral and anterior-marginal pairs shorter again, but moderately 

 stout. Fore-coxa with one somewhat conspicuous spine. Fore-femur two 

 and one-quarter times as long as broad, without any conspicuous spines and 

 furnished with a long hair near base within ; tibia slightly longer than the 

 femur ; tarsus unarmed. Intermediate and hind-legs long and slender, with 

 a short spine at tip within, with a moderately long hair at tip on the outer 

 side of each tibia. Pterothorax a little broader than the width across fore- 

 00X96 ; mesothorax wider than the metathorax and with the sides parallel. 

 Wings reaching to the seventh abdominal segment. 



Abdomen about as wide as the mesothorax, sides parallel to the seventh 

 segment ; eighth segment broadest at fore-part and gently narrowed to hind- 

 margin, and ninth segment narrowed to base of tube. Tube three times as 

 long as the breadth at base, twice the length of the preceding segment and 

 about three-quarters the length of the head. Terminal hairs not quite so 

 long as tube, weak. Abdominal bristles long, those of the ninth segment 

 being longer than tube. 



Habitat. One female, Los Adjuntas, Venezuela, September 10th, 1891 ; 

 and one female, Dos Caminos, June 14th, 1891 (Meinert). 



Type. In the Copenhagen Museum. 



The long tube and the apparent absence of the ante-ocular bristles readily 

 distinguish this form. 



LlOTHRIPS INTERMEDIUS, Sp. nOV. (PI. 53. figS. 8-11.) 



? . Length 3'5 mm., breadth of mesothorax 0"55 mm. 



This species closely resembles both L. elongatus and L. similis. Like 

 L. elongatus it possesses a very short tube, which is only one-half as broad at 

 base as long and a little more than two-fifths the length of the head. The 

 insect is broader, however, than elongatus ; the antennae are shorter as com- 

 pared with the length of the head ; the fore-legs are stouter and slightly shorter, 

 and the femur furnished with a few rather conspicuous bristles on the outer 

 edge ; the abdomen is broader than the prothorax, whilst the eighth abdominal 

 segment is decidedly shorter than the seventh and not longer as in elongatus. 



It perhaps resembles similis more closely than elongatus ; the head in 

 similis, however, is slightly more slender and the rest of the body compara- 

 tively broader. L. intermedins possesses prominent ante-ocular bristles, also 

 bristles on the outer edge of the fore-femur, and a pair of dorsal bristles on 

 the seventh abdominal segment which we cannot distinguish in similis ; 

 whilst the tube in the last-named insect is more slender and half as long 

 again as in intermedius, being three times as long as the breadth at base and 

 three-quarters the length of head. 



