BLATTARIiE. 17 



Female. Body oval, dull, very minutely hirsute, sinooth and shining 

 henealh; fore half convex. Head transversely and minutely striated. 

 Eyes wide apart. Second joint of the palpi clavate; third slightly securi- 

 form, much longer than the second. AntennoK setaceous, minutely setulose, 

 iiol more than half the length of the body; first joint long; second, third 

 and fourih short; followiug joints very short. Prothorax extending a little 

 beyond the head, nearly semicircular, slightly reflexed on each side and in 

 front; hind border very slightly sinuated on each side. Mesothorax and 

 metathorax with the hind border sinuated and with the hind angles 

 slightly elongated. Metathorax partly and obliquely covering on each 

 side the first, second and third abdominal segments. Dorsal abdominal 

 segments extending on each side a little beyond the ventral segments; 

 hind angles elongated, acute. Subanal membrane bilobed. Styles short, 

 broad, rounded at the tips. Legs short, stout; fore femora with three or 

 four spines beneath; tibiae armed with strong spines; tarsi stout; first 

 joint almost as long as the fifth; second, third and fourth short; ungues 

 short, stout ; arolia rudimentary. 



The thick tarsi of this genus distinguish it from Polyphaga. 



1. SlSAPONA MAUGINALIS. 



Fcem. Picea, ferrugineo marginala, subtus fulva; caput testaceo hi- 

 fascialum ; abdomen e gnltis fulvis quinque viltatum, segmenti ven- 

 tralis apicalis laleribus piceis. Larva? — Caput nigrum, testaceo 

 unifascialum ; prothorax guttis duabus strigisque dtiabus obliquis 

 fuivis; abdomen maculis fulvis quinque vittatum. 



Female. Piceous, mostly ferruginous on each side, tawny beneath. 

 Head with a testaceous baud between the antennae and with another near 

 the mouth. Abdomen with five indistinct stripes of tawny dots; middle 

 stripe double, except on the first segment ; apical ventral segment piceous 

 on each side. Length of the body 17^ lines. 



a. Tejuca. Presented by Mrs. R. Bennett. 



Larva .>* Female. — Piceous, tawny beneath. Head black, with a tes- 

 taceous band near the mouth. Thorax broadly ferruginous-bordered ou 

 each side. Prothorax on each side wiih a tawny dot in the disk and with 

 a posterior oblique tawny streak. Mesothorax and metathorax each with a 

 band of four irregular tawny spots. Abdomen with five stripes of testaceous 

 spots ; middle stripe double, except on the first segment ; subanal membrane 

 very small. Length of the body 10^ lines. 



ft. Honduras. From Mr. Miller's collection. 



Genus 5. LAXTA. 



Fcem. Corpus ellipticum, opacum, tuberculatum, subconvexum, mar- 

 gine fuliaceo. Caput parvum, disco subimpresso, carina antica transversa. 

 Palporum articulus 2us subclavatus; 3us fere linearis, 2o valde longior. 

 Autennae graciles, setaceae, submoniliformes, setulosae, corporis dimidio 

 breviores. Prothorax ulrinque subimpressus, caput longe superans, antice 

 rotundatus, margine postico medio subconvexo. Abdominis segmenla 



• D 



