300 G. n. HORN, M. D. 



scales. Flanks of prothorax with shallow groove for the reception of the tarsi- 

 Legs pale testaceous. Length .14 inch ; .'J. 5 mm. 



This species may be readily known by the form of the thorax. It 

 has in common with pi'strinarius and scohinufd, the obrK|uc sjjroovcs on 

 the flanks of the prothorax for the reception of the tarsi and with the 

 former in having the margins of thorax finely creimlate. The scu- 

 tellum is very strongly cristate, the crest being rather thin and rising 

 to an extent greater than half the width of the scutellum 



One specimen collected by Mr. John Xantus, at Oupe 8.an Ijucas, 

 Lower California. 



M. texanus, n. sp. PI. IV, fig. 1. — Pale brownish testaceous, with occasionally 

 the disc of thorax and median transverse band of elytra darker and with 

 whitish scales sparsely placed over the entire surface of the body arranged in 

 rows on the elytra in the intervals of the strise. Head moderately convex and 

 with distinct median impression. Antennae pale testaceous, last joint large 

 and obliquely emarginate at apex. Thorax nearly as broad as long, slightly 

 broader in front of middle, suddenly narrowed at the front angles which are 

 acute and rather prominent; sides of thorax strongly rounded in front gradu- 

 ally sinuate behind, angles moderately prominent, truncate but not denticulate 

 at tip; disc moderately convex, median line feebly impressed, lateral margin 

 finely crenulate. Elytra moderately convex, as broad as thorax finely striate, 

 intervals tuberculate, each tubercle with a whitish scale. Body beneath 

 brownish testaceous, abdomen much darker. Flanks of prothorax with rather 

 deep grooves for the reception of the anterior tarsi. Legs 23ale testaceous. 

 Scutellum distinctly carinate. Length .10 inch ; 2.5 mm. 



This species has for some time been in my cabinet under the name 

 scohinula, Cand., with which it agrees very closely in most of the 

 characters given in the description. It difiers however in having the 

 margin of thorax finely but distinctly crenulate and the scutellum dis- 

 tinctly carinate. The description and figure o£ scobimtla, by Candeze 

 diifer so notably from each other that the discrepancy in such an ac- 

 curate student can hardly be accounted for. I have before me two 

 specimens of this species diff"ering somewhat in the form of the 

 thorax as is shown in the accompanying figure which serve to 

 give a very accurate idea of the form of the species. (See the two 

 sides of the thorax in plate.) 



The two specimens before me were collected in Texas by Mr. G. W. 

 Belfrage. 



M. scoliinula, Cand. — Has not yet occurred in our fauna, the name in the 

 "List" referring to M. cristatus. 



