312 FAUNA HAWAIIENSIS 



Males 4. 



Females. 



1. Antennae 12 or 13-jointed, the last joint of the club so minute as to be often 



confused with the penultimate joint 3. 



Antennae 14-jointed, with 2 ring joints. 



Winged forms 2. 



Wingless forms. 



Abdomen conically pointed, the petiole distinct, a little longer than 

 thick, tlie second segment occupying hardly half of its surface ; 

 flLigellum rather stout, subclavate, the joints fluted. [United 



States.] (/) Apterolelaps n. g. 



(Type A. nigriceps Ashm. MS.) 



2. Abdomen conically produced at apex and usually ending in a prominent 



ovipositor ; second segment large, occupying fully half of the surface, the 

 third to fifth very short, the sixth and seventh together conical, longer than 

 half the length of the second. [West Indies, South America.] {2) Lelaps Haliday. 



3. Abdomen conically produced at apex, the second segment not much longer 



than 3 and 4 united, the fifth longer than the fourth, the seventh conically 

 produced; scutellum with a cross-furrow at its apical third. [Hawaii.] 



(j) Neolelaps n.g. 



(Type N. hawaiiensis Ashm.) 



Abdomen subglobose or short oval, the second segment very large, occupying 

 nearly the whole surface, the following very short, more or less retracted 

 within the second ; scutellum with a cross-furrow very near its apex, far 



beyond its apical third. [Hawaii.] {4) Mesolelaps, n. g. 



(Type M. cyaneiventris Ashm.) 



4. Petiole of abdomen long, the body small, spatulate ; antennae very long, 



14-jointed, longer than the whole body, the joints long, cylindrical, clothed 



with long hairs (2) Lelaps Haliday. 



Petiole of abdomen very short, the body oblong-oval, truncate at apex ; antennae 

 not longer than the thorax, 13-jointed, the flagellum filiform, pubescent, the 

 joints after the first about twice as long as thick (./) Mesolelaps n. g. 



The males belonging to Apterolelaps and Neolelaps are unknown, and cannot be 

 incorporated in the table. 



Neolelaps, gen. nov. 



The salient characters for the recognition of this genus have been brought out in 

 the table of genera given above, and little more can be said of it : The shape of the 

 abdomen is very similar to that of Lelaps and especially to some undescribed species in 

 my collection from South America, but the much shorter second segment, and the 

 differences noted in the antennae readily separate the two genera. In its antennal 

 characters it comes quite close to Mesolelaps, but in all other respects it is totally 

 different, the abdomen in the last mentioned being subglobose or short oval, never 

 conically produced at apex, and has the second dorsal segment very large, occupying 

 nearly the whole surface of the abdomen. 



